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A. Soft Perritee B. Herd Perritee B. Gerrwte
Low coercive Tore*, high penoebllltlee
txtrenely high coercive force. High reerwiee. Low peraeebilitiee
Kxtrewly low coercive force* Hlch eeturetlon Monetisation
Catputere end general ecnrnunioetlom Peraenent negnete
for nleroweve aeponente.
cuuimcATioH or r^jwm prj'u>^w Miorets
A. Oriented B. Han-oriented C. Bobber
D. Fleetlc Bonded
Highest energy produst (3.5 x Ilf*)
Intermediate energy product (1.1 * 106)
Interned lets energy product (1.0 x lcr;
low energy (0.6 z 1?)
Sintered
Sintered
ferrite impreg nated rubber, flexible.
Highly reeeted ferrite held in thereoeetting pleetie. low tewp. cure.
PStMiK^KT RX~Krr CKOIliTHT
General forwulei Moet Cowon foneuleei
Cryetellogre phy:
p,ww"
MeO nfe^O^
where He divalent, ertelie 1mm Be. Sr. Pb. or fe
BiO 5.6Pe^0, or Befe^^D^
fbO S.bfejOj or ftO
SiO ^fe^Oj or St O tPeaOs
PeO fe203 or
or lodeetone or HMagnreettlitte
Hexagonal
Iey direction of aepgrnwet tlMtlon (Afi) Magnetic Mowent (CD)
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Alloy Magneto (Alnloo )
Ferrite Permanent Kagnete (Indiana Steel*a Index V)
UkOI -Tie CJURACTKSIJTIW
ALirlCD F \
Peak Biei-Bf Prodvct (B^) r.sx X 1C6 Rcaldual Induction, Br (klloeauea) Coercive Foret, He (oersteda) Permeance Coeficimt, B/H (S^jH^J mi.
5.25 12.5 600 20
Irdi-cticn, (3^) nax (kllogiusa)
10.2
liaf PW urlt lerxth, IT - (a^H^J at (oersteds. 512
Inereeerial PenteiLUlty
2.2
Peak Ma*T.ctixlr.g FOrea Required, Hp (oaratada) 3000
max t
'.50 A.00 2000 1.06 U*5 1755 1.05 10,000
APPLICATION AND DEilGN FACTOR^ A^tl-ty to wllr.yt%rd deu^retizirg flrld* Approx, top. peraanentljr affecting matl.(f) Preferred earnetie orientation Importance of working at (B^) aax Weight (lb per at In.) Mechanical Propartlea Critical Materials Pro3ant Electrical reeletivltjr a 25C (u-ohn on) Tanalla Strength (t-al) Coefficient of thereal axpanalon (par deg C x 10"*)
Good 1000 Tea boat 0.27 HardABrlt. 06 and Ml 47 5450 11.3
Superior 1*00 Tea Leant 0.18 KardASrltib Kona
1010 Low
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BPjAxax* or o t o t t rsrarre v ar k w
! OcATscorcr
Deflection Components
KM) USI
TV Tokee TV Trans formers
MATERIAL TTf* STSTa
MlnFejO, Soft HnZrfejoIr
ma s s
pr o d . INTRODUCE) IK7R0. BT
General 1%9 Ceramics
DOLLAR VOL- * or rrajur*
tVE SALKS
VIRKST
1963
15,550,000 8.9L
interne ode
Radio Receivers
IlZnCoFsjOj,
Henry L.
Soft
1951 Cronley Co. 1,500,000
2.12
Sq '.are Loop Computer Switch
Ferrites
utd Memory
Soft
Specialties
Coamnlcatlons A Computers as Cup Cores, Turin-
iluga, Hi-Freq. Soft
Transformers, Recorder Heads,
Magnetostrletiva Transducer*
UrZrHgF9fiL
General
1952 Ceramics
Many
1953- Many
30,000,000 LR.'S 8,000,000 12.89
Microwave Components
Permanent tir-
Kaveguldss,
HlZnAlFsjOi
Cyraters,
i !anwts IzFsaO*
Isolators, Etc. Soft
195L
Many
Hard
1955
Ferroxeube,
General
Ceramics
*6,000,000
Indiana Steel
11,000,000
9.66 17.75
f e r r it e k a o k s t v a r x s t crvgf>pvvf
F
t ear
REMARKS
AKWAL SALS3
1955
Non-oriented barium ferrite aapnet Introduced to the b.S. market by Indiana Steel. Erergy Prod.* 0.8 x 10^
1956
Consumer acceptance Tor TV foeusia*, toys, and holdihea Other ferrite manufacturers hare -rtered field
1,000,000 (approx.)
1957
Oriented barium ferrite aaj.et introduced by Indiana Steel, ft-er^ Product - 3.0 a 10
2,500,000 (aDsrox.)
i
1959
Oriented magnet accepted by loud speaker manufacturers.
6,000,000
Fmnd aecetAable for separators and heavy handling.
1960
Rubber magnets introduced by Leysan Rubber Co. Other ferrite manufacturers enter oriented a* met field. Oriented rsgnots accented for Traveling Rasa
*7 ,500,000 \ loorau)
Tube applications and sore motor applications.
1963
Impact of ruboer magneta is felt, increased application >1 1,000,000 or oriented magnet*. SL-tsen rajor companies are now manufacturing ceramic permanent magnets.
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(Uaaad or. acrid ccnsua of Miwrifet unit nkn.)
iPPU CATK*
* by weight
Loudapatkaro Kagnatoa, genaratorat and antort Maaauping inatnwanta Electronic dcaicaa, thanoatata, antoaatls
centroll, and alero*a*e apot 1 eatlone. Toy* and novaltlea Telephoned iforkholdara and latofla* da raretor* Other applleatlona
16.5 16.* 124.
a.J 5.7 IU> 2.5 1.9 1.6
was m4G*mm*"***i*
a;.w..! BW
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ILS* rrap.m bao r et u\Tcnri<n^
UARUFAOTK5R
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Indian* Steel, Division of
Veparaleo, Indiana
All
Indiana General Corp.
General Kacnetlce, Die. of Buter Corp.
Detroit, Hlchlgtn
Oriented Only
Arnold engineering. Dir. of Alleghany Ludlun
Barengo, llllnola
Oriented and Plaetle Bonded
Steckpol#
St. Harys, Penna.
Oriented and Ronoriented.
Magnatroniea, D1t . of Crucible Steel
Hlxabethtow), Ky
Oriented end nonorianted.
D.K. Steward
Chattanooga, Tern.
Oriented and nanoriented.
Alien Bradley
1
eitinghouee
Milwaukee, dlteoneln Blalretom, Penna.
Oriented end nonorient ed
Oriented only
Goodyear Rubber
Akron, Ohio
Rubber only.
Goodrich Rubber
Barieta, 0->io
Rubber crly
leysan Rubber
Clnelrretl, Ohio
Rubber only
Autonation Industrie*
Boulder, Colorado
Oriented and nonorient,ad
national BoldIt*
Rewark, B.J.
Bon-orl nted
Kearfott
CLlfton, B.J.
Bon-orlerted
Begr.eeo, Dir. of Advanoe Roe a Electronice Corp.
Addieon, HI.
Ron-oriented
Bagno-Ceraa
South Plainfield, B.J.
Oriented and Rubber
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