書誌事項
- タイトル別名
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- Effect of TiO2 on Grain Refining of Amorphous Si3N4 and the Grain-refined Mechanism.
- アモルファス チッカ ケイソ ノ ビリュウカ ニ オヨボス TiO2 テンカ
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抄録
Amorphous Si3N4/TiO2 compacted bodies were heated at 1490°C, for 1 to 10 hr under N2 pressures of 0.92 and 1000 atm, and the effect of N2 pressure on the resulting grain refining was investigated, to clarify the role of TiO2 in the grain-refined mechanism. Thermodynamic calculation performed prior to experiments indicated that high N2 pressure inhibited the formation of SiO gas and new formation of Si3N4 by its re-nitridation. Crystallized phases after heating were α-Si3N4, Si2N2O and TiN. Although both N2 pressures formed the fine grains having a diameter of about 30 nm, high pressure accelerated the grain refining and crystallization of amorphous Si3N4 to a-Si3N4. From these results, the fine grains were considered to be formed not through re-nitridation of SiO gas but through crystallization of amorphous Si3N4.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 44 (10), 963-969, 1997
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390001206308892544
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- NII論文ID
- 10002261593
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 4324262
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可