Influence of additional Al2O3 powder on sintering behavior of Cu ultrafine powder.
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- Hayashi Koji
- 東京大学生産技術研究所
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- Kihara Hiroshi
- 東京大学生産技術研究所
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- Itabashi Masao
- 東京大学生産技術研究所
Bibliographic Information
- Other Title
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- Cu超微粉の焼結挙動に及ぼすAl2O3粉添加の影響
- Cu チョウ ビフン ノ ショウケツ キョドウ ニ オヨボス Al2O3 フン
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Description
The relative density and average Cu grain size of the sintered compact which was prepared from Cu ultrafine powder (0.03 μm, 6.3 mass% oxygen) and Al2O3 powders (0.02 or 0.5μm) were investigated in relation to the relative density (Dg) of green compact and the amount and particle size of Al2O3 powder. The compacts were sintered mainly at 1273 K for 3.6 ks in hydrogen.<BR>The fully dense sintered Cu-Al2O3 compacts were obtained in the range of a small amount of Al2O3 (the limiting value was about 4 vol% for Al2O3 of 0.02 um, and 10 vol% for Al2O3 of 0.5 μm), when Dg was below a critical value (Dgc) in the same way as in the case of the pure Cu compact. The Dgc increased with increasing amount of A12O3 powder. When the amount of Al2O3 was lager than the above limiting value, the sintered compact became porous, irrespective of Dg. The grain growth of Cu matrix became more surpressed in general as the Al2O3 powder became larger in the amount and finer in the size; the minimum average grain size in the dense Cu-Al2O3 compact was about 2 μm, compared with 9 um in the pure Cu compact.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 34 (6), 259-263, 1987
Japan Society of Powder and Powder Metallurgy
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Keywords
Details 詳細情報について
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- CRID
- 1390001206307305856
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- NII Article ID
- 130000813129
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- NII Book ID
- AN00222724
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- COI
- 1:CAS:528:DyaL2sXmt1WmsLY%3D
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 3145668
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed