JPH0372014B2 - - Google Patents
Info
- Publication number
- JPH0372014B2 JPH0372014B2 JP61018834A JP1883486A JPH0372014B2 JP H0372014 B2 JPH0372014 B2 JP H0372014B2 JP 61018834 A JP61018834 A JP 61018834A JP 1883486 A JP1883486 A JP 1883486A JP H0372014 B2 JPH0372014 B2 JP H0372014B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- shaped
- zinc
- ferrite
- fine particles
- Prior art date
- 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 - Lifetime
Links
- 229910000859 α-Fe Inorganic materials 0.000 claims description 70
- 239000002245 particle Substances 0.000 claims description 61
- 239000010419 fine particle Substances 0.000 claims description 52
- 239000011701 zinc Substances 0.000 claims description 29
- 229910052725 zinc Inorganic materials 0.000 claims description 29
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 27
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 claims description 20
- 229940007718 zinc hydroxide Drugs 0.000 claims description 20
- 229910021511 zinc hydroxide Inorganic materials 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 17
- 230000005291 magnetic effect Effects 0.000 claims description 17
- 239000007864 aqueous solution Substances 0.000 claims description 15
- 239000006104 solid solution Substances 0.000 claims description 15
- 238000010304 firing Methods 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 8
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000005415 magnetization Effects 0.000 description 30
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 238000001027 hydrothermal synthesis Methods 0.000 description 9
- 238000002441 X-ray diffraction Methods 0.000 description 8
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000000151 deposition Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 6
- 239000011787 zinc oxide Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 239000011592 zinc chloride Substances 0.000 description 4
- 235000005074 zinc chloride Nutrition 0.000 description 4
- 239000012670 alkaline solution Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 238000010335 hydrothermal treatment Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- VNDYJBBGRKZCSX-UHFFFAOYSA-L zinc bromide Chemical compound Br[Zn]Br VNDYJBBGRKZCSX-UHFFFAOYSA-L 0.000 description 2
- UAYWVJHJZHQCIE-UHFFFAOYSA-L zinc iodide Chemical compound I[Zn]I UAYWVJHJZHQCIE-UHFFFAOYSA-L 0.000 description 2
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 229910001422 barium ion Inorganic materials 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- 229940102001 zinc bromide Drugs 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61018834A JPS62176918A (ja) | 1986-01-29 | 1986-01-29 | 磁気記録用板状Ｂａフエライト微粒子粉末及びその製造法 |
| US07/008,466 US4806429A (en) | 1986-01-29 | 1987-01-29 | Plate-like barium ferrite particles suitable for use in magnetic recording and process for producing the same |
| DE8787300780T DE3773403D1 (de) | 1986-01-29 | 1987-01-29 | Plaettchenfoermige bariumferritteilchen fuer magnetische aufzeichnung und verfahren zu ihrer herstellung. |
| DE8787300779T DE3773008D1 (de) | 1986-01-29 | 1987-01-29 | Plaettchenfoermige bariumferritteilchen fuer magnetische aufzeichnung und verfahren zu ihrer herstellung. |
| US07/008,439 US4851292A (en) | 1986-01-29 | 1987-01-29 | Plate-like barium ferrite particles suitable for use in magnetic recording and process for producing the same |
| EP87300779A EP0232131B1 (en) | 1986-01-29 | 1987-01-29 | Plate-like barium ferrite particles suitable for use in magnetic recording and process for producing the same |
| EP87300780A EP0232132B1 (en) | 1986-01-29 | 1987-01-29 | Plate-like barium ferrite particles suitable for use in magnetic recording and process for producing the same |
| KR870000794A KR870007538A (ko) | 1986-01-29 | 1987-01-30 | 자기 기록용 판상 바륨 페라이트 입자 및 그의 제조방법 |
| KR870000795A KR870007539A (ko) | 1986-01-29 | 1987-01-30 | 자기 기록용 판상 바륨 페라이트 입자 및 그의 제조방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61018834A JPS62176918A (ja) | 1986-01-29 | 1986-01-29 | 磁気記録用板状Ｂａフエライト微粒子粉末及びその製造法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62176918A JPS62176918A (ja) | 1987-08-03 |
| JPH0372014B2 true JPH0372014B2 (enrdf_load_stackoverflow) | 1991-11-15 |
Family
ID=11982592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61018834A Granted JPS62176918A (ja) | 1986-01-29 | 1986-01-29 | 磁気記録用板状Ｂａフエライト微粒子粉末及びその製造法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62176918A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62265121A (ja) * | 1986-05-09 | 1987-11-18 | Toda Kogyo Corp | 板状Ｂａフエライト微粒子粉末及びその製造法 |
| JP2741198B2 (ja) * | 1987-11-06 | 1998-04-15 | 戸田工業 株式会社 | 磁気記録用板状マグネトプランバイト型フェライト微粒子粉末 |
-
1986
- 1986-01-29 JP JP61018834A patent/JPS62176918A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62176918A (ja) | 1987-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |