JP4921806B2 - タングステン超微粉及びその製造方法 - Google Patents
タングステン超微粉及びその製造方法 Download PDFInfo
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- JP4921806B2 JP4921806B2 JP2006035576A JP2006035576A JP4921806B2 JP 4921806 B2 JP4921806 B2 JP 4921806B2 JP 2006035576 A JP2006035576 A JP 2006035576A JP 2006035576 A JP2006035576 A JP 2006035576A JP 4921806 B2 JP4921806 B2 JP 4921806B2
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- Prior art keywords
- tungsten
- powder
- ultrafine powder
- ultrafine
- gas
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims description 80
- 239000000843 powder Substances 0.000 title claims description 73
- 239000010937 tungsten Substances 0.000 title claims description 66
- 229910052721 tungsten Inorganic materials 0.000 title claims description 66
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 239000002245 particle Substances 0.000 claims description 32
- 239000007789 gas Substances 0.000 claims description 30
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 12
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 12
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 10
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 description 22
- 239000002994 raw material Substances 0.000 description 19
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 150000003658 tungsten compounds Chemical class 0.000 description 8
- 239000012071 phase Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 239000007772 electrode material Substances 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 5
- 238000005245 sintering Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003870 refractory metal Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 150000003657 tungsten Chemical class 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- YOUIDGQAIILFBW-UHFFFAOYSA-J tetrachlorotungsten Chemical compound Cl[W](Cl)(Cl)Cl YOUIDGQAIILFBW-UHFFFAOYSA-J 0.000 description 1
- WLTSUBTXQJEURO-UHFFFAOYSA-N thorium tungsten Chemical compound [W].[Th] WLTSUBTXQJEURO-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Description
図1に示した高周波プラズマ微粉製造装置を用いて、タングステン超微粉を製造した。即ち、プラズマガス供給口2からプラズマガスとしてアルゴンを30リットル/分で供給すると共に、シースガス供給口3からシースガスとしてアルゴンガスを85リットル/分及び水素ガスを5リットル/分の流量で混合して供給し、プラズマトーチ1に約40kWの入力で高周波プラズマを点火して、安定したプラズマ炎5を得た。
シースガス供給口3からシースガスとしてアルゴンガスを80リットル/分及び水素ガスを10リットル/分の流量で混合して供給した以外は、上記実施例1と同様にしてタングテン超微粉を製造した。
原料粉末として、金属タングステン粉末((株)高純度化学研究所製、WWE06PB、粒径3μm、純度99.9%)を用いた以外は、上記実施例1と同様にしてタングステン超微粉を製造した。
2 プラズマガス供給口
3 シースガス供給口
4 原料粉末供給口
5 プラズマ炎
6 プラズマ尾炎部
7 反応チャンバー
8 冷却チャンバー
9 回収装置
Claims (4)
- アルゴンガスをプラズマガスとして供給すると共に、水素ガスとアルゴンガスをシースガスとして供給することによって提供される、アルゴンガスと水素ガスを含む還元性雰囲気中において、タングステン酸化物を高周波プラズマにより気化させ、得られたタングステン蒸気を凝縮させて微粉化させることを特徴とするタングステン超微粉の製造方法。
- 得られたタングステン超微粉を、酸素を含むアルゴンガス雰囲気中で徐酸化処理することを特徴とする、請求項1に記載のタングステン超微粉の製造方法。
- 請求項1又は2に記載の製造方法で得られたタングステン超微粉であって、平均粒径が100nm以下であり、粒径の幾何標準偏差が1.35以下であることを特徴とするタングステン超微粉。
- 請求項2に記載の製造方法で得られたタングステン超微粉であって、平均粒径が100nm以下、粒径の幾何標準偏差が1.35以下であり、表面がタングステン酸化物の薄膜で覆われていることを特徴とするタングステン超微粉。
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JP2006035576A JP4921806B2 (ja) | 2006-02-13 | 2006-02-13 | タングステン超微粉及びその製造方法 |
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JP2006035576A JP4921806B2 (ja) | 2006-02-13 | 2006-02-13 | タングステン超微粉及びその製造方法 |
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JP2007211333A JP2007211333A (ja) | 2007-08-23 |
JP4921806B2 true JP4921806B2 (ja) | 2012-04-25 |
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Families Citing this family (11)
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EP2684691A1 (en) * | 2007-11-05 | 2014-01-15 | Basf Se | Tungsten oxides as ir absorbers for nir curing, laser welding etc. |
JP5094668B2 (ja) * | 2008-09-30 | 2012-12-12 | 株式会社日清製粉グループ本社 | Ni−W系合金微粒子の製造方法並びにNi−W合金微粒子の製造方法 |
KR101118614B1 (ko) | 2009-11-20 | 2012-02-27 | 한국생산기술연구원 | 나노 입자를 이용한 이종 소재간 복합체 제조방법 및 이를 이용하여 제조되는 이종 소재간 복합체 |
KR101118615B1 (ko) | 2009-11-20 | 2012-03-07 | 한국생산기술연구원 | 마이크로 입자의 표면에 나노 입자를 증착시키기 위한 혼합 분말 제조장치 및 이를 이용하여 제조되는 혼합 분말 |
KR101092634B1 (ko) | 2009-11-20 | 2011-12-13 | 한국생산기술연구원 | 고융점 희유금속의 저온 소결 방법 및 이를 이용하여 제조되는 고융점 희유금속 성형체 |
CN102847953A (zh) * | 2011-06-30 | 2013-01-02 | 中国科学院过程工程研究所 | 一种球形纳米钨粉的制备方法 |
JP5222438B1 (ja) * | 2011-11-29 | 2013-06-26 | 昭和電工株式会社 | タングステン細粉の製造方法 |
US9789538B2 (en) | 2012-12-17 | 2017-10-17 | Show A Denko K.K. | Method for producing ultrafine tungsten powder |
US20220362848A1 (en) | 2019-12-30 | 2022-11-17 | H.C. Starck Tungsten Gmbh | Process for Producing Tungsten Metal Powders |
JP7540256B2 (ja) | 2020-09-11 | 2024-08-27 | 株式会社プロテリアル | W粉末 |
CN114029497A (zh) * | 2021-11-09 | 2022-02-11 | 北京工业大学 | 一种元素分布均匀、粒径细小的高比重钨镍钴纳米粉体及合金的制备 |
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JPS58113301A (ja) * | 1981-12-28 | 1983-07-06 | Shinku Yakin Kk | 金属超微粒子の徐酸化装置 |
JPH01115810A (ja) * | 1987-10-29 | 1989-05-09 | Mitsubishi Metal Corp | 高純度立方晶炭化タングステン超微粉末の製造法 |
JP2662986B2 (ja) * | 1988-06-24 | 1997-10-15 | 高周波熱錬株式会社 | タングステンもしくは酸化タングステン超微粒子の製造方法 |
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