JP2000277311A5 - - Google Patents
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- Publication number
- JP2000277311A5 JP2000277311A5 JP1999081883A JP8188399A JP2000277311A5 JP 2000277311 A5 JP2000277311 A5 JP 2000277311A5 JP 1999081883 A JP1999081883 A JP 1999081883A JP 8188399 A JP8188399 A JP 8188399A JP 2000277311 A5 JP2000277311 A5 JP 2000277311A5
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- powder
- coercive force
- iron
- surface area
- 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.)
- Granted
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 69
- 239000006247 magnetic powder Substances 0.000 description 56
- 239000000843 powder Substances 0.000 description 56
- 230000005291 magnetic Effects 0.000 description 53
- 239000000463 material Substances 0.000 description 43
- 238000006722 reduction reaction Methods 0.000 description 27
- ILMFDGFXPJCFQW-UHFFFAOYSA-N azanide;azanidylideneiron;iron Chemical compound [NH2-].[Fe].[Fe].[Fe].[Fe].[Fe].[Fe]=[N-] ILMFDGFXPJCFQW-UHFFFAOYSA-N 0.000 description 25
- 229910001337 iron nitride Inorganic materials 0.000 description 25
- 238000005121 nitriding Methods 0.000 description 23
- 229910052742 iron Inorganic materials 0.000 description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 17
- 229910052751 metal Inorganic materials 0.000 description 17
- 239000002184 metal Substances 0.000 description 17
- 230000005415 magnetization Effects 0.000 description 16
- 239000007789 gas Substances 0.000 description 15
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 11
- 239000002245 particle Substances 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 229910000460 iron oxide Inorganic materials 0.000 description 9
- 229910001566 austenite Inorganic materials 0.000 description 7
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- 241000271571 Dromaius novaehollandiae Species 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000011247 coating layer Substances 0.000 description 5
- 238000004438 BET method Methods 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 229910052803 cobalt Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 230000002194 synthesizing Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 210000002381 Plasma Anatomy 0.000 description 1
- 229920002803 Thermoplastic polyurethane Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002195 synergetic Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08188399A JP3848486B2 (ja) | 1999-03-25 | 1999-03-25 | 磁気記録媒体用窒化鉄系磁性粉末材料及びその製造方法並びに磁気記録媒体 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08188399A JP3848486B2 (ja) | 1999-03-25 | 1999-03-25 | 磁気記録媒体用窒化鉄系磁性粉末材料及びその製造方法並びに磁気記録媒体 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006171405A Division JP4502978B2 (ja) | 2006-06-21 | 2006-06-21 | 窒化鉄系磁性粉末材料及びその製造方法並びに磁気記録媒体 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000277311A JP2000277311A (ja) | 2000-10-06 |
| JP2000277311A5 true JP2000277311A5 (zh) | 2005-10-13 |
| JP3848486B2 JP3848486B2 (ja) | 2006-11-22 |
Family
ID=13758862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08188399A Expired - Lifetime JP3848486B2 (ja) | 1999-03-25 | 1999-03-25 | 磁気記録媒体用窒化鉄系磁性粉末材料及びその製造方法並びに磁気記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3848486B2 (zh) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3886968B2 (ja) * | 2002-03-18 | 2007-02-28 | 日立マクセル株式会社 | 磁気記録媒体および磁気記録カートリッジ |
| US7259935B2 (en) | 2002-07-05 | 2007-08-21 | Hitachi Maxell, Ltd. | Magnetic tape including an intermediate layer consisting essentially of a binder |
| US6964811B2 (en) | 2002-09-20 | 2005-11-15 | Hitachi Maxell, Ltd. | Magnetic powder, method for producing the same and magnetic recording medium comprising the same |
| WO2004075179A1 (ja) * | 2003-02-19 | 2004-09-02 | Hitachi Maxell, Ltd. | 磁気記録媒体 |
| JP4673945B2 (ja) * | 2003-09-16 | 2011-04-20 | 日立マクセル株式会社 | 磁性粉末およびその製造方法ならびに磁気記録媒体 |
| EP1548760A3 (en) | 2003-11-27 | 2007-12-26 | DOWA Electronics Materials Co., Ltd. | Iron nitride magnetic powder and method of producing the powder |
| JP4599574B2 (ja) * | 2003-11-27 | 2010-12-15 | Ｄｏｗａエレクトロニクス株式会社 | 窒化鉄系磁性粉末 |
| JP4534059B2 (ja) | 2004-03-17 | 2010-09-01 | Ｄｏｗａエレクトロニクス株式会社 | 窒化鉄系磁性粉末およびその製造法 |
| JP4734599B2 (ja) | 2004-08-02 | 2011-07-27 | Ｄｏｗａエレクトロニクス株式会社 | 耐候性の良い窒化鉄系磁性粉末およびその製造法 |
| JP4734602B2 (ja) * | 2004-12-21 | 2011-07-27 | Ｄｏｗａエレクトロニクス株式会社 | 保存安定性に優れた窒化鉄系磁性粉末 |
| JP4758203B2 (ja) | 2005-11-14 | 2011-08-24 | Ｄｏｗａエレクトロニクス株式会社 | 高保磁力鉄系磁性粉末及び磁気記録媒体 |
| JP4769130B2 (ja) * | 2006-06-14 | 2011-09-07 | Ｄｏｗａエレクトロニクス株式会社 | 窒化鉄系磁性粉末およびその製造法並びに磁気記録媒体 |
| JP2008159259A (ja) * | 2008-02-13 | 2008-07-10 | Hitachi Maxell Ltd | 磁気記録媒体 |
| JP2010199361A (ja) * | 2009-02-26 | 2010-09-09 | Hitachi Metals Ltd | 窒化鉄系磁性微粒子の製造方法 |
| JP5769223B2 (ja) | 2009-10-22 | 2015-08-26 | 戸田工業株式会社 | 強磁性粒子粉末及びその製造法、異方性磁石及びボンド磁石 |
| JP5822188B2 (ja) | 2010-09-24 | 2015-11-24 | 戸田工業株式会社 | 強磁性粒子粉末及びその製造法、異方性磁石及びボンド磁石 |
| JP5831866B2 (ja) | 2011-01-21 | 2015-12-09 | 戸田工業株式会社 | 強磁性粒子粉末及びその製造方法、並びに異方性磁石、ボンド磁石及び圧粉磁石 |
| JP5858419B2 (ja) | 2011-04-27 | 2016-02-10 | 戸田工業株式会社 | 強磁性粒子粉末の製造方法、異方性磁石、ボンド磁石及び圧粉磁石 |
| JP5846540B2 (ja) * | 2011-07-06 | 2016-01-20 | 住友電気工業株式会社 | 窒化鉄粉末の製造方法 |
| WO2013042721A1 (ja) | 2011-09-22 | 2013-03-28 | 戸田工業株式会社 | 強磁性窒化鉄粒子粉末の製造方法、異方性磁石、ボンド磁石及び圧粉磁石 |
| WO2014122993A1 (ja) * | 2013-02-06 | 2014-08-14 | 株式会社日清製粉グループ本社 | 磁性粒子の製造方法、磁性粒子および磁性体 |
| JP6380736B2 (ja) | 2013-06-12 | 2018-08-29 | Tdk株式会社 | 窒化鉄系磁性粉及びそれを用いた磁石 |
| JP6344129B2 (ja) * | 2014-08-06 | 2018-06-20 | Tdk株式会社 | 窒化鉄系磁性粉末及びそれを用いた磁石 |
-
1999
- 1999-03-25 JP JP08188399A patent/JP3848486B2/ja not_active Expired - Lifetime
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