JPS6257578B2 - - Google Patents

Info

Publication number

JPS6257578B2

JPS6257578B2 JP59019241A JP1924184A JPS6257578B2 JP S6257578 B2 JPS6257578 B2 JP S6257578B2 JP 59019241 A JP59019241 A JP 59019241A JP 1924184 A JP1924184 A JP 1924184A JP S6257578 B2 JPS6257578 B2 JP S6257578B2

Authority

JP

Japan

Prior art keywords

particles

magnetoplumbite

magnetic

type ferrite

iron oxide

Prior art date

1984-02-03

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

• Espacenet
• Global Dossier
• Discuss

• 239000002245 particle Substances 0.000 claims description 62
• 229910000859 α-Fe Inorganic materials 0.000 claims description 33
• UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 26
• 239000000843 powder Substances 0.000 claims description 25
• 238000010304 firing Methods 0.000 claims description 16
• XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
• 238000002156 mixing Methods 0.000 claims description 12
• 229910052712 strontium Inorganic materials 0.000 claims description 12
• 229910052788 barium Inorganic materials 0.000 claims description 10
• 235000019353 potassium silicate Nutrition 0.000 claims description 10
• NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 10
• 150000001875 compounds Chemical class 0.000 claims description 9
• CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 9
• 239000000203 mixture Substances 0.000 claims description 8
• DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 7
• 239000010419 fine particle Substances 0.000 claims description 7
• 238000004519 manufacturing process Methods 0.000 claims description 7
• 238000010298 pulverizing process Methods 0.000 claims description 7
• 229910052751 metal Inorganic materials 0.000 claims description 6
• 239000002184 metal Substances 0.000 claims description 5
• 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
• 229910052745 lead Inorganic materials 0.000 claims description 3
• 238000001354 calcination Methods 0.000 claims 1
• 238000000034 method Methods 0.000 description 14
• 239000000696 magnetic material Substances 0.000 description 12
• 239000000463 material Substances 0.000 description 6
• 238000004438 BET method Methods 0.000 description 4
• AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 4
• 230000000694 effects Effects 0.000 description 4
• 239000002994 raw material Substances 0.000 description 4
• 238000005245 sintering Methods 0.000 description 4
• 238000002441 X-ray diffraction Methods 0.000 description 3
• 230000000052 comparative effect Effects 0.000 description 3
• 230000007423 decrease Effects 0.000 description 3
• 238000001493 electron microscopy Methods 0.000 description 3
• HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 3
• AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 3
• 230000002159 abnormal effect Effects 0.000 description 2
• 238000004458 analytical method Methods 0.000 description 2
• 229910001566 austenite Inorganic materials 0.000 description 2
• 239000011362 coarse particle Substances 0.000 description 2
• 239000013078 crystal Substances 0.000 description 2
• 239000006249 magnetic particle Substances 0.000 description 2
• 238000005259 measurement Methods 0.000 description 2
• 239000004111 Potassium silicate Substances 0.000 description 1
• 239000004115 Sodium Silicate Substances 0.000 description 1
• 239000000654 additive Substances 0.000 description 1
• 230000015572 biosynthetic process Effects 0.000 description 1
• 229910017052 cobalt Inorganic materials 0.000 description 1
• 239000010941 cobalt Substances 0.000 description 1
• GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
• 238000004891 communication Methods 0.000 description 1
• 238000010586 diagram Methods 0.000 description 1
• 230000005284 excitation Effects 0.000 description 1
• 230000004907 flux Effects 0.000 description 1
• BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 1
• JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
• 229910000464 lead oxide Inorganic materials 0.000 description 1
• 230000005415 magnetization Effects 0.000 description 1
• NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
• 229910052913 potassium silicate Inorganic materials 0.000 description 1
• 239000000700 radioactive tracer Substances 0.000 description 1
• 238000007670 refining Methods 0.000 description 1
• 150000004760 silicates Chemical class 0.000 description 1
• 229910052911 sodium silicate Inorganic materials 0.000 description 1
• 229910000018 strontium carbonate Inorganic materials 0.000 description 1