FINEMET® FINEME - Elna Magnetics
Contents
1. INL BAB SiS Frequency Dependence of Relative Permeability After resin molding TRESS BIBL EFT 3MO LSE O BEM 10 tlt RLE FT 3MlS BED RS HEU BAZ LEU CEPS BRL CHILEBEP EX DOD 7 BORI CHELTOET CohPEMITZ Co based amorphous FIRER SRRAICLVURESBAPHS 510 ETO a F The graph shows frequency dependence of a relative permeability for resin molded FI 3M at 5 FeV EIIPA gt FT 3M and Co based amorphous cores show E 3 small permeability degradation after the resin 10 molding due to their small magnetostriction 102 1 2 4 100 10 10 10 10 FRA kHz Frequency kHz AVE FVAWAMEZSB KOEI Complex Relative Permeability and Impedance Relative Permeability 10 FT 3MOTVE S2V AL Ew UH kU REE E Tig BR SE RA Iz d iy Sr a EaD i AE BHEO RAE U CH SEB Ly OD FR AUS ZAR VEAL ASE BER Un Fea 5OkHz E Cu ur LW HKECHWET Impedance relative permeability Ur Uz Ur bold ROKIGRMAP BVET E 2 2 H2 vH u r Sona AEEBZORMBU The graph shows real part ur and imaginary part Imaginary part of complex u of the complex relative permeability and the ee Ore a ae GR MEBEOLABU Real part of complex relative impedance relative permeability uz for FT 3M permeability H material u becomes larger than ur SOKHz Relationship between prz p and p is U WM H 10 10 10 10 104 FRR kHz Frequency kHz A AHS CaM SNET ARRECA NE EA ARS CaS NER aC OLY CORMMEASOT LHRECABLCHVET fERAICRRUEU ld2. REAGOT REON EAHA CHES For safety and the proper usage you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering T This catalog and its contents are subject to change without notice E FPA SAAYPR OFS Characteristics of FINEMET IVY OAOELBAGSE IRK ASS iS60 Frequency Dependence of Core Loss Before resin molding TRA SAMI SBA OFT 3M Fe ELITR toar Co 7EJILJPZ SBEUMN ZnN7LIThOAPA Ba 0 2T AO AKSUM ERUET oO FT 3Mid Mn Zn7r _ TtbhPFeBV EIVIPALWH KAV OAC Co EE FeRPELIPAZ PEMIPREMETCH 103 _ erssed amorphous SV The graph shows frequency dependence of core z P loss for nonresin molded cores made of FT 3M g Fe based amorphous metal Co based amorphous 2 S metal and Mn Zn ferrite FT 3M cores show lower core loss than Mn Zn ferrite and Fe based cores and has the same core loss as Co based amorphous core CoBPEIIPA Co based amorphous 10 7 i 10 10 10 FRR kHz Frequency kHz I7oZoM R IRF FYE Frequency Dependence of Core Loss After resin molding IRAE RLEFT 3MOIFOZNE EZ 104r EELNE FT 3Mld 2i2L CHAP AAI LITRES Bn eT CohPEIIPALA SE POKU ARR CRELTWET Fer ELIPA AI TTT PA Fe based amorphous a Fa CoBPEILIPA O W 2 Co based amorphous Q SF G s T L A VE LRAY AORE SRR RESORAMS WET The graph shows frequency dependence of core loss for the resin molded cores made of
3. Because of the high curie temperature 570 C FINEMET beads shows excellent performance at high temperature These cores are suitable for suppression of reverse recovery current from the diode and ringing or surge current from switching circuit Prt ry PEZAR FT 3H FT 3M EPEAT LEB Comparison of magnetic and physical properties among FT 3H FT 3M and conventional materials ATHY FINEMET CoRVEIIPZA Material FT 3H FT 3M Co based amorphous Ni Zn7zr7tk Ni Zn ferrite RDF RS EBs T Saturation flux density Bs T fAAZtLB B Squareness ratio B Bs 30 RBS TIH A m Coercive force He A m 20 INV ASB BE Up Pulse permeability rp 500 IV OAP J m Core loss Pev J m8 7 0 3 U iBET C Curie temperature Te C 200 BOF EE BAS X10 Saturation magnetostriction s X10 7 8 FR LZ pum Electrical resisitivity uQ m 1x10 a FE kg m Density d kg m BAKE 800A miF OB athe Ste i VLRO US SIF RREES AB 0 2T DC magnetic properties at 800A m_ Pulse width 0 1 us operating magnetic flux density A B 0 2T of FAICBRLEL Cid Rem AGOT HRBONBRE LACE CESU This catalog and its contents are subject to change without notice 5 2X108 ARE R NETA RRHH ClLHWECA RARER SN 7B IS UY COMED ZOT HHRECABLCHVET For safety and the proper usage you are requested to approve our product specifications or to transact the approval sh
4. ERIA ERRULE DOERR 408A 7 Hae ER BSE ATHY 3G Si steel TK Clk HolkDOMAUCLEBI F A A FIR Clk2D S6RICLEGIL ae FFI YAVbE N VOF Permalloy WOPFETECEWET a 10 FINEM Fe Al Si Fe Al Si In the conventional soft magnetic materials whose grain size is far 104 larger than 1pm it was well known that soft magnetic properties become worse and coercive force increases when crystal grain size R 10 becomes smaller For example coercive force is thought to be 5 gt 102 inversely proportional to D Therefore main efforts to improve the soft magnetic properties 9 10 were directed to make the crystal grain size larger and or to make the magnetic domain size smaller by annealing and working 10 However FINEMET demonstrated a new phenomenon reduction of grain size to a nano meter level improves the soft magnetic 107 properties drastically In this nano world the coercive force is directly proportional to D on the order of D to D This is absolutely contrary to the conventional concepts for improving the soft magnetic properties 10 10 107 10 104 10 10 kimt D nm Grain diameter D nm TE RJI TE Physical Properties IP ZR sy h ALIE A OYE ARLET WAERTE HEDHI E Physical properties of FINEMET material ZEAE CTY FAK EE BMY 0T FAE aED o pa ae lt N UN DZ Bs 34 xm eS oe 57TOCEBWCED FECT AR Het Fe FILER aie ee 43 8 l Material Density FSIS megetoscton Sarees The tab
5. FI 3M FT 3M core shows stable core loss over wide frequency range with lower core loss than ferrite cores and have the same core loss as Co based amorphous core Mn Zn7zr7Ttk Mn Zn ferrite AV AZ Pey kW m Core loss Pov kW m p p s aS rag 42 s s O ot p Note Data may vary depending on resin and or 10 molding conditions 10 4 0 10 F220 kHz Frequency kHz IFOZOB IkFIE Bn Dependence of Core Loss FT 3H FT 3MBkUFT 3LD20kHzMAV7OA OBMtKIF MERLE FT 3MEFT 3L ZIFF ee EICIAPOAPNARHEoTUET Z ny B f 20kHz H HEODFT 3HI4 EB fll TZN KJE KRII AAC TOET H BrP REKESICONT ZO oe a ED INSKBWETF 0 s x x The graph shows Bm dependence of core loss for a FT 3H 3M and 3L at 20kHz FT 3M and 3L show x 9 lower core loss than FT 3H As Bm becomes O RN 2 higher core loss difference among those m8 materials becomes smaller Bm T Flux density Bm T AS Cat NETAHA CA EEA AMS ICA SNE Ral OlY COPMEAZOT LHREtABLCSVET CE FAICRRULEL ld REAFOT REON AA TICKER For safety and the proper usage you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering This catalog and its contents are subject to change without notice RFI REE OSE KZtt Temperature Dependence of Saturation Flux Density FT 3O 8a Fl he RE
6. MISNET CDEC CUl kZ AOZER IRE Nbi d Sbccit aa tu re Hl hl RO Rieko THI he 7 tebe WAY RERNE o Amorphous metal as a starting point Amorphous Cu rich areathe nucleation of bcc Fe from Cu gt bcc Fe Si shows the crystallization process At the final stage of this crystallization process the grain growth is suppressed by the stabilized remaining amorphous phase at the grain boundaries This stabilization occurs because the crystallization temperature of the remaining amorphous phase rises and it becomes more stable through the enrichment of Nb and B Synergistic effects of Cu addition which causes the nucleation of bcc Fe and Nb addition which suppresses the grain growth creates a uniform and very fine nanocrystalline microstructure fecc Cu bcc Fe Si fcc Cu bcc Fe Si kE Crystallization PEMIPA PEMIPA EMA WA dg Aa redo Amorphous Amorphous Nb BLECH ST Nb BIC BO tase Cul BOR Cu7 FAX Cu rich area Cu cluster aTeO PEILIPA SHAUL EEA BA The early stage of Rapidly quenched annealing amorphous phase Of FAICBRLEL Cid RaDIATE E EHA ERLE This catalog and its contents are subject to change without notice Remaining amorphous phase Amor ie hase 7 7 Nb B rich area Nb B rich area High Tx ie IE SAUL SR IH IPF IXY taai G4 RA The early stage of crystallization FINEMET after proper annealing ARE RR NETA RRHH ClLHWVECA RARE ICR SN 7B IS UY COM CHAO HHRE
7. permeability over a wider frequency range Consequently the volume of FINEMET core can be reduced to 1 2 the size of a Mn Zn ferrite core while maintaining the same performance at operating temperature of O C 100 C Also it has approximately three times higher saturation flux density than Mn Zn ferrite and as a result it is hardly saturated by LE SYU AEE U Impedance relative permeability u z 10 DP yrXy K FT 3M OU Mn Z7n7 171 OH z Mn Znferrite u pulse noise 102 10 10 10 10 104 EMI Electro Magnetic Interference EE kHz Frequency kHz Trt Aye a RANI Colt FT 3HH FALTE o VITT RNR FUP SRS Afa AUSSIE AY CEEE O BEEE AS MEIC THA JIRE TENA EDNET ELE ALCISFT SM 4A FALTE o RORY EDC GEKA CHSCOKRT EII PAPONI ZNILITh NEL ELO RAR BEY E CORT EIVIPVAZLAS ORAZ B NVAEBELAL WET 31 BEY5S7TOCERWUEO Sih CORTECHEN CET AL A FOUIN ZUAINUEHRDEIE YY BRSELOUL FUT OM Al A PAI cl CHF CT FINEMET saturable cores are made of FT 3H material Having high saturation characteristics the cores can offer high performance in noise suppression and size reduction in low voltage high current magamp circuit of Magamp system switch mode power supply FINEMET beads are made of FINEMET FT 3M material As below table describes the saturation magnetic flux density is twice as high as that of Co based amorphous metal and Ni Zn ferrite and the pulse permeability and the core loss are comparable to Co based amorphous metal
8. 005 C CEAEMELEV ELIA FERS SHCT COR Heime Com ELE CHAS L tee te CHE CRM CREED OFz 10nm nm 2 1nm 0 001 um B ABO1mm BEE C a lt v oid EOWA K ARET ENLI PANEINTA LEG GER fide A BEAT CIR AARD ADL EER STE lSEBRKESCANTRELEMD AWE BAVI FIO PIZA Z Om ame lt OP ALELES IPIY XY M ORR Features 1 Fat REE EcBWAZOWADAL Aa FBS REE It Fe 4 BV EILIP ALCS C Po AECI WN KP EVIPAZLAS CTF OyVIAVOADYYDIE AV AAlSFeRY EIVIPADN1 SLUF HIOCO EIVIPVALAED ENED BLAIVE ECSEF 3 HEEDYEL Bi EAE 7ED MI LREO IS TICK SHHEDALED DO A RBA LK BP ATIENIECEDRE NCS CREF 4 ERED Ro SC D DAFA EDIE me SEC LS EBEO AE Slt 40 C 150 COSHH C 10 LIA CHOCOES HERS COD aX Cor EIVIPADLIGRA Lae EDEMA IE FOH EEA CBRRPOLL EHS ORIG ET ZT 0 5 Are CRED RY kKReCAV OAS CHICK ARABIC SUOT CoRPV EIVIPA CS ORECAL WET EK EmO SE CHW AVA Chores 6 B HEfiR OAZAA rll el O BE B HABRROAZIK A RHE SAMBO Lo Ce PCB CSET 8 FA BAO ARCEN CHIRP AIRE CT The precursor of FINEMET is amorphous ribbon non crystalline obtained by rapid quenching at one million C second from the molten metal consisting of Fe Si B and small amounts of Cu and Nb These crystallized alloys have grains which are extremely uniform and small about ten nanometers in size Amorphous metals which contain certain alloy elements show superior soft magnetic properties through crystallization It was commonly known that the characteristics of soft magnetic
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10. A B266415t NOTICE OF DISCLAIMER OAM HS CaMenNkis Oe AIC Hth F OISSTHE BEE TOM AM AP AES CORAICI TSR al EK 1d SE HOME D aT RE ITIODD CISLHWECVA HK AHH Aage El RRE PALE Cel Eo T BEZORMP Ate COMFICMDSHBYECEES Htoo WETADCHSPUOMT SHEA OA KRRBO MBELILS Be KAOLE KDR RALI a Beit eEHTSZCeETM lt KSMUUELET OAH MICOW CORMGMRHASSSU SRB CASL THIET CHP AICRLEL TIL ZONBETD CEBROI A TCICECMA NSLS AA TZEE OARS MRSS FATA AR MICO COCERE CBS ls BeCSHMUADECESL Information in this brochure does not grant patent right copyright or intellectual property rights of Hitachi Metals or that of third parties Hitachi Metals disclaims all liability arising out using information in this brochure for any case of patent right copyright or intellectual property rights of third parties Do not duplicate in part or in its entirety this brochure without written permission from Hitachi Metals Ltd This brochure and its contents are subject to change without notice specific technical characteristics are subject to consultation and agreement Please inquire about our handling manual for specific applications of FINEMET these manuals detail the exact guaranteed characteristics of FINEMET for a specific application OQ AUSeRtstH http www hitachi metals co jp ESETA A T105 8614 BReMAKS HT B2B15 V S ANE Tel 03 5765 4058 Fax 03 5765 8319 Bara ss 7541 0041 ABRAPREAR T B5B2905 HABA Tel 06 6203 9751 Fax 06 6222 341
11. BOWE KTFECMULET 1 4 FT 30 BO ie EIRENE PIAS FER 25 CP5150 CIC EAL TH BSDE F Rik 10A FERo TUET 1E COT Bld RAE e AAD EE RLEY o B Otelt HATA M217 La 7 CUZ BH R4TesoML CHWECA The graph shows temperature dependence of saturation flux density Bs for FT 3 FT 3 has very small temperature dependence of saturation flux density The decreasing rate of saturation flux density is less than 10 at range from 25 C to 150 C W BLANK RRE Bs T x Saturation flux density Bs T Note This data shows value of annealed crystallized material 1 1 20 40 60 80 100 120 140 160 Because B value for H type M type and L type EE are same the data does not describes BH type a Temperature C thaw OE Kt Temperature Dependence of Relative Permeability FT 3M FT 3L 1 OkHzl c SVA ERNE KIFTEZMRLET f 10 kHz ia FER IFTED SK BIAS EBRD BER 4 0 CD5150 C OSHC 25 CO LEE HAZE A L H1IO kW Aw Beto TUET The graph shows temperature dependence of relative permeability at 10kHz for FI 3M and FI 3L The variation of relative permeability is very small at a temperature range from 0 C to 150 C which is within 10 of the average value HERE ur X104 Relative permeability u X104 O 20 40 60 80 100 120 140 160 mE C Temperature C aging time increasing however FI 3M FI 3L are quite stable FT 3M FT 3L 100 CO SiMICMBLECEOLE 19 TTT TTT Tr TTI BER f 1kHz DHF REMERLET 100
12. C rsx Temperature 100 C FT 3M FT 3L L RE Ii B ID HEIL TH CERSEI Tem CoP EMIPADEWAL AT SZERK ELA 5 ae ee Pr TT C EO BERLET E x 2 The graph shows aging effects at 100 C on relative fe permeability at 1kHz for FT 3M FT 3L and Co based 2 amorphous metal The relative permeability of o o Co based amorphous metal decrease rapidly as the ba g G 5 oc 10 102 108 104 aE h Time h A AS Cat eNET BS REE CA EEA AMS ICM SNE Raw Ol CORMEAZOT HRB ABLCSVET CE FAICRRLEL ld REAFOT REON AA TICES For safety and the proper usage you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering 9 This catalog and its contents are subject to change without notice FPA AAVYR OLA SGI Major Application of FINEMET TPt vdAy MP Ayr O14 E A ALE BBE ult Mn Zn7 rath A Duo LEN TAU ABA IR CKSHBERTECHIC GB HICKS RB EDMD Their Tot T COKMEMIF 1 IVA AO EVER Fa To IP fv AyrA MATE a SRE LESS 7 12 ABE MAO C 100 CELEI Zi S Mn Zn7 rat hav lcken C AI TERE CH 1 242 E DAAE C Jkr nET EK JPII r Nfa KR BEBsI Mn Z2n7131I7 4 VE FYV ALBEE O ew Comparison of impedance relative permeability DIB BSIED INIVAMED I 1 ACH LRIRILIE UCU JRE 105 BWNEF EMI amp amp Fi Electro Magnetic Interference FINEMET FT 3M O D Compared with Mn Zn ferrite FINEMET has higher impedance permeability uz and much smaller temperature dependence of
13. CABLCHVET For safety and the proper usage you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering aS Fass KSSITOMMS BERET 1 OnMO19 Cite pa AF Go RD SEN CT o 48ldbcc Fe Si t8C HAW ORAICY EID At FRIEL CT eo IP12 Ay PNI OM A below picture shows the microstructure of FINEMET through a transmission electron microscope FINEMET consists of ultra fine crystal grains of 10nm order Main phase is bcc Fe Si and remaining amorphous phase around the crystal grains Microstructure of FINEMET a ee A AGE aC NETA RRHH ClLHWECA ARE ICR SNR AIC OU COM EAZOT THRESH BLCSVET of FAICBRLEL Cid Rem AGOT HRBONBE LACE CESU For safety and the proper usage you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering This catalog and its contents are subject to change without notice FPA SAYRP OS Characteristics of FINEMET ze ANTS UE Basic Properties BR WS EAA Om IRR Grain Size and Coersive Force of Soft Magnetic Materials HER OG ARR E ONDE 1 umAVSILSMICAAKK DH N SK BSIECRR RIED BIE HclSSSMTSCEP ASN TET a bio b 5 Sot iE PA ole eet ZO SAL z gt z Ht elationship between crystal grain diameter and coercive force H PALES CD EAS RRE BH TS aaa o y DEF A B EFSIP TU APNR R HRCSACOHS it SE dct EA op 43 PD AAS DER BRB SUITED
14. IL aH Eat CSR Chie Bial CWA Ke Swe MOET ORMORN SRA ECEN cE HR HOlixAoneeEL CURT CUT MCLE WOFAI eFC Diese OMA 5S BIR E REE SLE ERLE T Eun Hitachi Metals Ltd produces various types of soft magnetic materials such as Permalloy soft ferrite amorphous metal and FINEMET and we use these materials in our product s applications We continually improve our material technology and develop new applications by taking advantage of the unique charac teristics these materials provide FINEMET is a good example It is our hope FINEMET will be the best solution for your application Sem Fy ay Measurement BF BART Rapid quenching Nano structure control Annealing Electromagnetic circuit designing Electromagnetic and ES E electro circuit designing TPIYAIMO SBE S Fides A Picture of FINEMET through a transmission electron microscope A N AMBRE IET FLEE CLUE A ABC RRS TRB IC OU TOR MEN SOT HER BLTBUEF CTE FAICBRLEL Cid RmMAZOT HRBONBRETACHERCESU 2 For safety and the proper usage you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering ey This catalog and its contents are subject to change without notice prea ses High permeability IPIAYVAYM ORR Features of FINEMET Byin tse Excellent temperature characteristics bot HR a 4 2 Ang High saturation High flux density Ign Squareness R177 0z
15. Low core loss ERLE Low magnetstriction EMID74 JLD9 AEYE kKFa 7 BIRK HayK Bk RNa Smee BaAeyo EMI filters Common mode chokes Magnetic shielding sheets Electromagnetic wave absorbers Current sensors Magnetic sensors Energy saving IJR Volume reduction aia WS WDA mi EE YIP IY I TRUPA si SBT IVIL ZKS gt Ar BEBE WLARDYA High performance Magnetic amplifier Pulsed power cores Surge absorbers High voltage pulse transformers RS 4 ALE Noise reduction DARI NI I PITIT DAA PAFI JI1 VAALEA High frequency power transformers Active filters Smoothing choke coils SIERA A Accelerator cavity High frequency use A N AEB EIS RRR eT IL REE CLUE A FERS CRS EBB OU TORMED IO HERE RBULTHUEF CTE FAICBRUERL Cid Rem AGOT LRBONBRET A ERLEEN For safety and the proper usage you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering 3 This catalog and its contents are subject to change without notice JPA YAP OF 35754 7 048 Manufacturing Process and Microstructure of FINEMET IPI VAY MANS EII rZ ROR BAC BNI Usb A below diagram shows the process for the creation of amorphous M24 7 FAQ SR AD SRLS AARLET AP DRIEAKERUET ROP EVI PARE BMO JL3KCRF ribbon for FINEMET and a typical FINEMET core The amorphous BAIRE ISU CBE ACEIRLET IfnHAHBS SEGRE A RRETH ELET COED BH lt ribbon is the precursor mater
16. OU TOR MEN FO HES AELTHUET CE FAICERLUEUL Cid RmAZOT HRBONBE TA ELET For safety and the proper usage you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering 11 This catalog and its contents are subject to change without notice
17. aturation flux density of various soft magnetic materials DPA YXYE OB HABRO AZAR Hl B H Curve Control for FINEMET JRE CHBAKL EFA RAIS 7 CHES ATE O Ba FR DOL C FES HUSHA 1D BFR NIN SF CPA SIMS CEB A NE MBEAN NIELAI TERNE T o SAITILH M LAT TD 5455 TER AEB CIC SAUER CAR eANAZFINEMET er AOE Re EEL ZOO CF B H RONI Bit Examples of DC B H curve Hmax 800 A m B T Hmax 800 A m Hmax 8 A m 1 0 M Type FT 3M gt H gt H Hmax 8 A m TERA OD FERRE The limit of the conventional special material gt D oO oO Q oO v oO an 1 0 1 5 BUFR EE Bs T Saturation flux density Bs T FINEMET core s magnetic properties B H curve can be controlled by applying a magnetic field during annealing There are four types of of B H curves 1 H type a magnetic field is applied in a circumferential direction during annealing 2 M type no magnetic field is applied during annealing 3 L type a magnetic field is applied vertically to the core plane during annealing 4 S type having the highest permeability of FINEMET result of improvement of annealing process based on findings in H M and L type magnetic field controlling Hmax 800 A m B T 1 0 8 A m S Type FT 3S Hmax 800 A m Hmax H IPL IXYPEEIR What is FINEMET IPT Vv rYhe ORAS Fe ERDUT CNCSI Y UAL EBRA VY BEUGWEOCu GA CNO AT CALERA HKO See 1
18. eet for product specifications before ordering j P TAR M re TOR Trt Vv xvheF38CCAYKAY OAV BZ 1 OkHz B n 0 1T lt Fe FET EVI PAAYRAV O1L BLUE 74 HS 0 1mm Avk PO1V 8BLFERD TET COED BAKARA BIST hIVAZBOIP CIP sy RAT Se Ato Eo Rike eW TZET EX AMEE 107A 2 CHS ZO VBA RAKES AR CRMLEBAICH FeV E WIPAAYRIP CHECHSLIGASEREISELECA The core loss of FINEMET F3CC Series cut core has less than 1 8rd the core loss of Fe based amorphous metal and less than 1 8th the core loss of silicon steel at 10KHz Bm 0 1T FINEMET has significantly lower core loss and thus makes it possible to reduce the size of the core for high frequency power transformer etc Also the magnetostriction of FINEMET is 10 order and as a result cores made from this material will make very little audible noise when compared to cut cores made from Fe based amorphous metal 100 IAZ Pen W kg Core loss Pem W kg 0 1 O Ay KIVOIAP OAL Comparison of core loss between cut cores HAES 1 Rt Oriented 3 Si steel t 0 23mm 5 4 3 6 5 a steel t 0 10mm Fes EIV IPA Fe based amorphous IPLLIXY P F3CC FINEMET F3CC Series 100 Ree aon Flux density kHz JPI y Pry OS lias SIE LIS 7 7 ALTE COMRBKE FEODORA ULAR SEE ESHA BAIT PAE VZR ZAIZ pDA SMM Ras RFD RS O DIR A AAP RP HVE FeRP EIIP AIST tAE Ok CO7 EVIPAILY cll FOr LC LEY VL P OAR CHPASNSSBE VLAIND BAIVAP DALE BI RECT FINEMET
19. ial of FINEMET This ribbon which is F118 ume CT about 18um in thickness is cast by rapid quenching called single ODALA SAAME RLT RL ERIC roll method then the amorphous ribbon is wound into a toroidal HoT HJER LET CHICLW MOTI PD oy A OHA core eels the heat treatment is applied to l the cors for crystallization in order to obtain excellent soft magnetic properties of The diagram shows the typical annealing conditions for M type This process requires proper heat treatment conditions according to the desired magnetic properties MA1 7 ANRE a Example of annealing for M type 78 id Heat treatment in inert gas nea Re or Ag EN FINEMET core D 500 570C i x OoN if eb S e 2 ie PA Eil PA ea oe Air cooling or VPEIIPA furnance cooling fist 100 200 C WE 18um p ARSAN Amorphous DILORA J teaatt Room metal ribbon Ribbon winding Nano temperature Casting gt Rapid guenchin Haii na POS nes 5 oat 10nm Grain size 10nm Thickness 18 um Configuration crystallization Fe kt ZERADE THICSI VUAY EB AOY S amp E Apply rapid quenching to high temperature melt consists Ui OCu 4 END LAT EAMLES RM REW of Fe as a main phase Si B Cu and Nb 100A C sC SBtklets PEMIPAZEHERELTCT PEWIP A gt Cul BORK Cu EFRGDSbcc Fethitidatt bcc Fe Si HAZ CREED EAL t ART bcc Fe Si 8 O A MICND CBICBOAt We OnE STX DV GIVI AD REL VP EIVIP ARYA ELAN Ge HO MED
20. le shows physical properties of annealed FINEMET material x10 ke m3 uQ m FINEMET has resistivity as high as amorphous metals and has much lower magnetostriction and about 570 C higher Curie FINEMET o a2 eo s70 temperature than Fe based amorphous metal FT 3 EERIE Standard Magnetic Characteristics IP12 EER OKA J DAyk kO4ZIVI7 Magnetic properties of FINEMET and conventional materials Non cut toroidal core i meiras B Bs He M kHz M 100kHz Poy Material A m x10 x108 kW m8 x 06 6 5 0 300 250 300 7 CoB EVI 7 ARM Co based high permeability amorphous metal 115 0 18 0 180 CoB EVI 7 ABANZILA Co based high squareness amorphous metal 10 0 ra AHE3 A7 lt 1 R Oriented 3 Si steel l 2 7 0 8 8400 0 8 750 6 5 7 1 seis 6 5 Si steel 1 2 0 8 0 1 700 50 Ni x01 50 Ni Permalloy 3400 80 Ni x01 AA 80 Ni high permeability Permalloy i i i 1000 80 Ni x01 SAGEM 80 Ni high squareness Permalloy 1200 Mn Zn7131 A AE Mn Zn high permeability ferrite i j i 500 0 6 Mn Zn7xr77MEIBAAM Mn Zn low core loss ferrite i A 600 0 6 FINEMET 121 Bs Br Bs He EHRE Hm 800A m 25 C ur 1kHz EEE BREE 1kHz Hn 0 05A m 25 C Hr 100kHz EES 1 00kHz Hm 0 05A m 25 C Po I7 0O23 100kHz Bn 0 2T 25 C As IREE To s iBE 7 2 FaCHStEld MA CORIEICES Note1 Bs Br Bs He DC magnetic propertie
21. materials are larger crystal grains yield better soft magnetic properties Contrary to this common belief soft magnetic material consisting of a small nano order crystal grains have excellent soft magnetic properties 1 Satisfy both high saturation magnetic flux density and high permeability High saturation magnetic flux density comparable to Fe based amorphous metal High permeability comparable to Co based amorphous metal 2 Low core loss 1 5th the core loss of Fe based amorphous metal and approxi mately the same core loss as Co based amorphous metal 3 Low magnetostriction Less affected by mechanical stress Very low audio noise emission 4 Excellent temperature characteristics and small aging effects Small permeability variation less than 10 at a temperature range of 50 C 150 C Unlike Co based amorphous metals aging effects are very small 5 Excellent characteristics over wide frequency range High permeability and low core loss over wide frequency range which is equivalent to Co based amorphous metal 6 Flexibility to control magnetic properties B H curve shape during annealing Three types of B H curve squareness high middle and low remanence ratio corresponding to various applications TPA YVAVYVEN OREM SATE IC IFAS BF Features and Typical Applications of FINEMET AISEA VO1 PEIDIPA EZLCIPAY AA TB KO hth FART Technology YM SCORER REEMA D5 JLITNelWcOnR LER HATE EHO DUT MRD 5 eS PA
22. ng Kong Ltd Units 2212 14 22 F Miramar Tower 132 Nathan Road Tsimshatsui Kowloon Hong Kong Tel 852 2724 4183 Fax 852 2311 2095 Above contact addresses are as of July 2010 The addresses are subject to change without notice If your telephone call and or fax cannot get through please contact us as follows Hitachi Metals Ltd Corporate Communication Group Tel 81 3 5765 4076 Fax 81 3 5765 8312 E mail hmcc hitachi metals co jp VEGETABLE OIL INK COAPOTA S WERE ICACRS Sled HT YACC CURT FINEMET JZ RBA IS E rr IPJ FINEMET IPA YXAYRORAOBR MEADS BED BN CUSACED5 fine XDD ENTUS amp metal HIB EUSB EOD BEEP RD TADEL OlIrty gt Avb IFAURROSREAE CIT FINEMET this name derives from the combination of FINE and METAL which indicates the material s features of being formed with fine crystal grains and having excellent magnetic properties FINEMET is a registered trademark of Hitachi Metals Ltd y D Nanocrystalline soft ull mate ial C HITACHI 2010 7 Hitachi Metals A207 S HL FMY E 20105F7 AER I GT3 SIRES CAMEOS lt IVOAZDYEUS JE Fe Qs IP YAY FINEMET Nanocrystalline Fe based Soft Magnetic Material with High Saturation Flux Density High Relative Permeability and Low Core Loss i TERM OFFlEZEADIP TY Xyb Superior to Conventional Material RWG EAA AO Ce ees Bol FER a ES OBS Relationship between relative permeability and s
23. pulsed power cores use a thin ceramic insulation which has a high break down voltage FINEMET pulsed power cores are suitable for saturable cores and step up pulse transformer cores that are used in high voltage pulsed power supplies for Excimer lasers and accelerators and for cavity cores used in induction accelerators and RF accelerators Ba ULAR MEK RAaBAIy Wa ALEMA OLR Comparison of core materials applied in saturable cores for magnetic pulse compression circuit 7 14S Core material alibi Insulation FINEMET FT 3H We SAS Ceramic FeV EIIPA Fe based amorphous metal Co based amorphous metal PETZ 7 JVL PET film Ni Zn7zr7Tk Ni Zn ferrite CoBhVEIIFA PETZ 74 JbL PET film RAE BER AEK ABm T Effective induction swing Ke ABm T 1 54 2 04 0 78 INJVA HAO AIPVOZAP J m3 Half cycle core loss Pe J m BORN PRO LES eZ Ur sat Relative permeability at saturation range Ur sat 710 1680 180 Jy RM EJH resen A m Reset magnetizing force H eset A m PJSP TZI hA A kE Volume ratio of saturable cores PJIP PIKILO Awaroa Total core loss ratio of saturable cores INJVA Wale ae 5 0 AF NIVANBO 5 us HHY O T us Pulse duration compression ratio 5 0 input pulse duration 0 5us output pulse duration 0 1us K 2705783 ABm RARRREE K Packing factor A Bm Maximum operation flux density A AMIE A AT SIL REEE CLEVE A ABER ICES EMLRIC
24. s Hm 800A m 25 C ur 1kKHz relative permeability 1kKHz Hm 0 05A m 25 C ur 1 OOKHZ relative permeability 1kHz Hm 0 05A m 25 C Pev core loss 100kHz Bm 0 2T 25 C As Saturation magnetostriction Te Curie temperature Note2 Above properties are taken measurement by Hitachi Metals Ltd A AMR BICRMSH IT ARETHA EEA ABMS BICOUTORMEA IOS HABE BBLCHHET of AICRRUEU CIS RAG OT REONE HITELT 6 For safety and the proper usage you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering im This catalog and its contents are subject to change without notice FEBS UE Frequency Characteristics this eO ARES IE Frequency Dependence of Relative Permeability CH 8 FS Ee SEF T 3M CoB VEIL IP Z 10 Fes EIVIPAZBEUMN ZnI TIT hOD Eb E 28 7 FE FRA Eee RNLET o FT 3Mid atest CFe EILD 7 APMN ZNF Co base ath em IIE COMRPV EIVIPACASOSv Ibe S al Mn Znferrite KRERLET 6 x5 NAG H E F 4 ee we pT TP 7 yy rs The graph shows frequency dependence of w i 4 relative permeability for FT 3M medium square S ae ratio of BH curve Co based amorphous metal 10 Fe based amorphous metal and Mn Zn ferrite FT 3M has much higher permeability than Fe based amorphous metals and Mn Zn ferrite and has permeability as high as Co based amorphous metals over a wide frequency range 102 10 10 107 10 104 EhE it kHz Frequency kHz HEREDERS
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