JP2012509405A - 粒子の被覆方法 - Google Patents
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
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- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
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- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
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Abstract
Description
(a)被覆された粒子を圧縮する工程、及び
(b)そこから合金またはサーメットを形成する工程
をさらに含む。
実質的に球形のチタン粉末(45μm未満、Advanced Powders and Coatings, Raymor Industries)10gを秤量し、スピードミキサ(商標)モデル DAC150FVZ用の好適なポットの中に入れた。パラジウムブラック(Johnson Matthey)0.02gを加え、ポットを密封し、内容物を混合した。二重非対称遠心力を1000rpmで20秒間及び2000rpmで20秒間適用した。
実質的に球形のチタン粉末(45μm未満、Advanced Powders and Coatings, Raymor Industries)150gを秤量し、スピードミキサ(商標)モデル DAC600用の好適なポットの中に入れた。パラジウムブラック(Johnson Matthey)0.3gを加え、ポットを密封し、内容物を2000rpmで3×20秒間混合した。
不規則HDHチタン粉末(45μm未満、Chemical Industries)25gを秤量し、スピードミキサ(商標)モデル DAC150FVZに好適なスピードミキサ(商標)ポットの中に入れ、パラジウムブラック0.05gを加えた。ポットを密封し、3×20秒間の混合時間によるサイクルを使用して混合した。不規則一次Ti粒子の表面上に分散したパラジウムのSEM画像を図4に示す。
十分に緻密な実質的に球形の酸化ジルコニウムビーズ(YTZ Grinding Media、Tosoh Corp.)30g及びパラジウムブラック0.06gを秤量し、スピードミキサ(商標)モデル DAC150FVZに好適なスピードミキサ(商標)ポットの中に入れた。ポットを密封し、3×20秒間混合した。
実質的に球形のチタン粉末(例1に詳細に説明)30g及びルテニウムブラック粉末(Johnson Matthey)0.06gを秤量し、スピードミキサ(商標)モデル DAC150FVZに好適なスピードミキサ(商標)ポットの中に入れた。ポットを密封し、二重非対称遠心力を3000rpmで合計180秒間適用するサイクルを使用して混合した。
実質的に球形のチタン粉末(45ミクロン未満、AP&C、Raymor Industries, Quebec)25gを秤量し、スピードミキサ(商標)ポットの中に入れ、炭酸水素テトラミンパラジウム乾燥粉末(Johnson Matthey)0.139gを加えた。ポットを密封し、モデル DAC150FVZ上で3×20秒間混合した。得られた材料の試料5gを、N2中5%H2の50ml/分の流れで、300℃で30分間加熱した。
実質的に球形のチタン粉末(45ミクロン未満、AP&C、Raymor Industries, Quebec)25gを秤量し、スピードミキサ(商標)ポットの中に入れ、ヘキサキス(アセト)トリパラジウム(II)Pd-111乾燥粉末(Johnson Matthey)0.106gを加えた。ポットを密封し、モデル DAC150FVZ上で60秒間混合した。得られた材料の試料5gを、N2中5%H2の50ml/分の流れで、300℃で30分間加熱した。
1mmアルミナビーズ(SASOL, Product Code 1.0/160)12gを秤量し、DAC 150FVZ モデル スピードミキサ(商標)に好適なポットの中に入れた。最終的な被覆された材料上の0.2重量%Pdに相当する0.067gの炭酸水素テトラミンパラジウム乾燥粉末(Johnson Matthey)を加えた。ポットを密封し、60秒間混合した。得られた組成物を、空気雰囲気中、500℃で2時間加熱し、この間にパラジウム塩が分解した。
固体CPTi(AP&C、45ミクロン未満粉末)+0.2重量%Pd合金を、二重非対称遠心力を使用して提供されたPd被覆された球形CPTi粉末の熱間等方圧加圧により調製した。熱間等方圧加圧は、930℃、100MPaで4時間行われた。
Claims (22)
- 二重非対称遠心力を使用して一次粒子を二次粒子で被覆する方法であって、
前記一次粒子が、(a)少なくとも一種の金属、または(b)少なくとも一種のセラミックを含み、
前記二次粒子が、少なくとも一種の金属またはその塩を含み、
前記二次粒子が前記一次粒子よりも可鍛性である、方法。 - (a)に関して、前記少なくとも一種の金属が、単一の金属、金属の混合物、合金またはそれらの組合せを含む、請求項1に記載の方法。
- (b)に関して、前記少なくとも一種の金属が、周期律表のIVB族、VB族、VIB族、VIIB族及びVIII族からなる群から選択される、請求項1または2に記載の方法。
- (a)に関して、前記少なくとも一種の金属が、チタン、モリブデン、タングステン、ニッケルまたは鉄を含む、請求項1〜3のいずれか一項に記載の方法。
- (b)に関して、前記少なくとも一種のセラミックが、ケイ素、ジルコニウム、アルミニウム、イットリウム、セリウムまたはチタンの少なくとも一種を含む、請求項1に記載の方法。
- 前記一次粒子が、実質的に球形、不規則形状またはそれらの組合せである、請求項1〜5のいずれか一項に記載の方法。
- 前記一次粒子が、実質的に球形である、請求項6に記載の方法。
- 前記一次粒子が、実質的に球形であり、約2000μm以下の平均直径を有する、請求項6または7に記載の方法。
- 前記一次粒子の形状が、被覆の際に実質的に変化しない、請求項1〜8のいずれか一項に記載の方法。
- 前記二次粒子が、単一金属、金属の混合物、合金、金属塩及びそれらの組合せからなる群から選択される、請求項1〜9のいずれか一項に記載の方法。
- 前記二次粒子が、周期律表のVIII族、IB族及びIIIA族からなる群から選択される、請求項1〜10のいずれか一項に記載の方法。
- 前記二次粒子が、白金、パラジウム、ロジウム、ルテニウム、イリジウム、オスミウム、銀、金、コバルト、銅、ニッケル、鉄またはアルミニウムの少なくとも一種を含む、請求項1〜11のいずれか一項に記載の方法。
- 前記一次粒子上にある前記二次粒子の前記被覆が、被膜の形態または個別粒子の形態にある、請求項1〜12のいずれか一項に記載の方法。
- 粉砕媒体が、前記一次粒子の前記二次粒子による前記被覆を支援する、請求項1〜13のいずれか一項に記載の方法。
- 前記二重非対称遠心力が、約1秒間〜約10分間、連続的な、または集合的な時間適用される、請求項1〜14のいずれか一項に記載の方法。
- 前記二重非対称遠心力の速度が、約200rpm〜約3000rpmである、請求項1〜15のいずれか一項に記載の方法。
- 前記二次粒子が、少なくとも一種の金属塩を含み、前記被覆された粒子が、熱的及び/または化学的手段によりさらに処理される、請求項10に記載の方法。
- (a)前記被覆された粒子を圧縮する工程、及び
(b)前記圧縮された粒子から合金またはサーメットを形成する工程
をさらに含む、請求項1〜17のいずれか一項に記載の方法。 - 請求項1〜17のいずれか一項に記載の方法により形成された、被覆された粒子。
- 請求項18に記載の方法により得られる合金。
- 請求項18に記載の方法により得られるサーメット。
- 請求項20または21に記載の合金またはサーメットから得られる製品。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0821304.3 | 2008-11-21 | ||
| GBGB0821304.3A GB0821304D0 (en) | 2008-11-21 | 2008-11-21 | Method for coating particles |
| PCT/GB2009/051581 WO2010058223A1 (en) | 2008-11-21 | 2009-11-20 | Method for coating particles |
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| JP2015138039A Division JP6270782B2 (ja) | 2008-11-21 | 2015-07-09 | 粒子の被覆方法 |
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| Publication Number | Publication Date |
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| JP2012509405A true JP2012509405A (ja) | 2012-04-19 |
| JP6189014B2 JP6189014B2 (ja) | 2017-08-30 |
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| JP2011536953A Active JP6189014B2 (ja) | 2008-11-21 | 2009-11-20 | 粒子の被覆方法 |
| JP2015138039A Expired - Fee Related JP6270782B2 (ja) | 2008-11-21 | 2015-07-09 | 粒子の被覆方法 |
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|---|---|
| US (1) | US9713842B2 (ja) |
| EP (1) | EP2361164B1 (ja) |
| JP (2) | JP6189014B2 (ja) |
| KR (2) | KR20170014019A (ja) |
| CN (1) | CN102223970B (ja) |
| AU (1) | AU2009317015B2 (ja) |
| CA (1) | CA2744071C (ja) |
| CY (1) | CY1123424T1 (ja) |
| DK (1) | DK2361164T3 (ja) |
| ES (1) | ES2802414T3 (ja) |
| GB (1) | GB0821304D0 (ja) |
| HR (1) | HRP20200766T1 (ja) |
| HU (1) | HUE051087T2 (ja) |
| LT (1) | LT2361164T (ja) |
| NZ (1) | NZ592811A (ja) |
| PL (1) | PL2361164T3 (ja) |
| PT (1) | PT2361164T (ja) |
| SI (1) | SI2361164T1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0821304D0 (en) * | 2008-11-21 | 2008-12-31 | Johnson Matthey Plc | Method for coating particles |
| GB0917988D0 (en) * | 2009-10-14 | 2009-12-02 | Johnson Matthey Plc | Method |
| US20110315046A1 (en) * | 2010-06-28 | 2011-12-29 | Paul Sheedy | Method for fabricating composite powders |
| US20110319252A1 (en) * | 2010-06-28 | 2011-12-29 | Schmidt Wayde R | Composite powders |
Citations (6)
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| WO2007148734A1 (ja) * | 2006-06-20 | 2007-12-27 | Hitachi Metals, Ltd. | 金属微粒子及び生体物質抽出用の磁気ビーズ、並びにそれらの製造方法 |
| WO2008078368A1 (ja) * | 2006-12-22 | 2008-07-03 | Ssjapan Ltd. | 遊星運動型摺擦装置 |
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| JPS4870141A (ja) | 1971-12-25 | 1973-09-22 | ||
| JPS61119602A (ja) | 1984-11-16 | 1986-06-06 | Toyota Motor Corp | 原料粉末と潤滑剤の混合方法 |
| US4885214A (en) | 1988-03-10 | 1989-12-05 | Texas Instruments Incorporated | Composite material and methods for making |
| US5882802A (en) * | 1988-08-29 | 1999-03-16 | Ostolski; Marian J. | Noble metal coated, seeded bimetallic non-noble metal powders |
| JPH0394078A (ja) * | 1989-06-23 | 1991-04-18 | Toyo Ink Mfg Co Ltd | 導電性粒子の製造方法 |
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Also Published As
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|---|---|
| HRP20200766T1 (hr) | 2020-07-24 |
| JP2016006229A (ja) | 2016-01-14 |
| KR20170014019A (ko) | 2017-02-07 |
| GB0821304D0 (en) | 2008-12-31 |
| KR20110089353A (ko) | 2011-08-05 |
| NZ592811A (en) | 2013-01-25 |
| JP6270782B2 (ja) | 2018-01-31 |
| PT2361164T (pt) | 2020-05-07 |
| JP6189014B2 (ja) | 2017-08-30 |
| ES2802414T3 (es) | 2021-01-19 |
| US20110281132A1 (en) | 2011-11-17 |
| EP2361164A1 (en) | 2011-08-31 |
| DK2361164T3 (da) | 2020-07-27 |
| EP2361164B1 (en) | 2020-04-29 |
| LT2361164T (lt) | 2020-07-27 |
| CN102223970B (zh) | 2016-08-24 |
| WO2010058223A1 (en) | 2010-05-27 |
| HUE051087T2 (hu) | 2021-03-01 |
| US9713842B2 (en) | 2017-07-25 |
| PL2361164T3 (pl) | 2020-11-02 |
| CN102223970A (zh) | 2011-10-19 |
| AU2009317015B2 (en) | 2014-09-04 |
| CY1123424T1 (el) | 2021-12-31 |
| AU2009317015A1 (en) | 2010-05-27 |
| SI2361164T1 (sl) | 2020-10-30 |
| SMT202000236T1 (it) | 2020-07-08 |
| CA2744071C (en) | 2014-02-11 |
| CA2744071A1 (en) | 2010-05-27 |
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