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FERRITE POWDER

 

OM ferrite powders were provided for ceramic magnets include Sr-ferrite (SrFe12O19) and Ba-ferrite (BaFe12O19). OM magnetic materials are divided into three catalogues (pellets, coarse powder and fine powder) and 24 brands, for making ceramic magnets of both isotropic and anisotropic, and for both dry and wet pressing.

 

 

PERMANENT MAGNETIC FERRITE FELT POWDER

Type

Material

Qualified standard of magnetic property

Average size of fine powder
( um )

Water content of fine powder
( % )

Br
 (mT)

HcB
(kA/m)

HcJ
(kA/m)

(BH)max
(kJ/m3)

BMXF-1

BaFe12O19

135

-

183

-

2-4

0.5

150

95

167

3.58

 

 

BMXF-2

BaFe12O19

140

-

183

-

1.1-1.4

0.5

180

115

167

5.57

 

 

BMXF-2b

BaFe12O19

145

-

160

-

1.5-1.8

0.5

180

107

143

5.17

 

 

BMXF-2c

BaFe12O19

145

-

160

-

1.8-2.1

0.5

180

107

143

5.17

 

 

BMXF-2S

BaFe12O19

145

-

183

-

1.1-1.4

0.5

180

115

167

5.57

 

 

BMXF-2Sb

BaFe12O19

145

-

160

-

1.5-1.8

0.5

180

107

143

5.17

 

 

BMXF-2Sc

BaFe12O19

145

-

160

-

1.8-2.1

0.5

180

107

143

5.17

 

 

BMXF-3

BaFe12O19

140

-

215

-

1.3-1.6

0.5

240

160

207

10.34

 

 

BMXF-4

BaFe12O19

140

-

263

-

1.3-1.6

0.5

240

160

207

10.34

 

 

BMXF-4b

BaFe12O19

140

-

280

-

1.0-1.3

0.5

240

167

239

11.1

 

 

 

 

 

PERMANENT MAGNETIC FERRITE SINTERED POWDER

Type

Material

Qualified standard of magnetic property

Rate of shrinkage
(%)

Average size Fine powder
(um)

Water content of fine powder
(%)

Name used before

Remarks

Br(mT)

HcB(kA/m

HcJ(kA/m)

(BH)max(kJ/m3)

BMS-2.4B

Strontium ferrite

370

167

183

25.5

151

0.80-0.90

0.5

None

Heteromorphic dry pressure fine powder, made of BMS-4B 

BMS-2.4

Strontium ferrite

350

215

223

23.0

15.51

0.80-0.90

0.5

Sr dry pressure heteromorphic powder

Heteromorphic dry pressure fine powder, made of BMS-4B 

BMS-2.4H

Strontium ferrite

330

239

255

19.9

151

0.80-0.90

0.5

None

Heteromorphic dry pressure fine powder, made of BMS-4H 

BMS-2.4E

Strontium ferrite

310

223

294

17.5

151

0.80-0.90

0.5

None

Heteromorphic dry pressure fine powder, made of BMS-4E 

BMS-2.5B

Strontium ferrite

390

175

183

28.7

15.51

0.80-0.90

0.5

None

Heteromorphic dry pressure fine powder, made of BMS-5B 

BMS-2.5

Strontium ferrite

370

207

223

25.5

15.51

0.80-0.90

0.5

None

Heteromorphic dry pressure fine powder, made of BMS-5 

BMS-2.5H

Strontium ferrite

350

247

279

22.3

151

0.80-0.90

0.5

None

Heteromorphic dry pressure fine powder, made of BMS-5H 

BMS-2.5E

Strontium ferrite

330

239

318

19.9

151

0.80-0.90

0.5

None

Heteromorphic dry pressure fine powder, made of BMS-5E 

BMS-2.5U

Strontium ferrite

310

223

374

17.5

151

0.80-0.90

0.5

None

Heteromorphic dry pressure fine powder, made of BMS-5U 

BMS-4B

Strontium ferrite

 

400

175

183

30.2

131

0.80-0.90

0.5

None

Heteromorphic wet pressure fine powder

BMS-4H

Strontium ferrite

 

360

243

263

25.5

131

0.80-0.90

0.5

None

Heteromorphic wet pressure fine powder

BMS-4E

Strontium ferrite

 

340

243

294

21.5

12.51

0.80-0.90

0.5

None

Heteromorphic wet pressure fine powder

BMS-5B

Strontium ferrite

 

420

175

183

33.4

131

0.75-0.85

0.5

None

Heteromorphic wet pressure fine powder

BMS-5E

Strontium ferrite

 

360

263

318

23.9

12.51

0.75-0.85

0.5

None

Heteromorphic wet pressure fine powder

BMS-5U

Strontium ferrite

 

340

247

374

21.5

12.51

0.75-0.85

0.5

None

Heteromorphic wet pressure fine powder

BMS-6

Strontium ferrite

 

400

255

263

30.2

12.51

0.70-0.80

0.5

None

Heteromorphic wet pressure fine powder

BMS-6H

Strontium ferrite

 

400

279

294

28.7

131

0.70-0.80

0.5

None

Heteromorphic wet pressure fine powder

BMS-5H.1

Strontium ferrite

 

380

263

290

27.0

13.51

0.70-0.80

0.5

Y34

Heteromorphic wet pressure fine powder

BMS-5H.2

Strontium ferrite

 

380

270

300

23.9

13.51

0.68-0.78

0.5

Y34-2

Heteromorphic wet pressure fine powder

BMS-5.1

Strontium ferrite

 

400

223

230

30.3

13.51

0.70-0.80

0.5

Y35

Heteromorphic wet pressure fine powder

BMS-5.2

Strontium ferrite

 

395

247

251

30.3

13.51

0.68-0.78

0.5

Y35H

Heteromorphic wet pressure fine powder

BMS-5.3

Strontium ferrite

 

405

207

211

31.0

13.51

0.70-0.80

0.5

Y35B

Heteromorphic wet pressure fine powder