書誌事項
- タイトル別名
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- Synthesis and Sintering of Titania-Containing Tetragonal Zirconia Powders
- TiO2 オ フクム セイホウショウ ZrO2 フンマツ ノ ゴウセイ ト ショウケツ
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説明
In order to synthesize t-ZrO2 containing TiO2 as a stabilizing agent, two kinds of ZrO2 precursors were prepared by coprecipitation method. One was TiO2-ZrO2 system with the compositions of 5∼20mol% of TiO2 and the other was CeO2-TiO2-ZrO2 system with the compositions of total 20mol% of TiO2 and CeO2. Synthesized precursors were calcined at 800°C and then sintered at 1450°C for 3h. In the binary system, t-ZrO2 phase was observed in calcined powders at any content of TiO2. Formation of t-ZrO2 increased with increasing addition of TiO2, and the calcined powder with 18mol% TiO2 was composed of only tetragonal phase at room temperature. For the sintered bodies of the calcined powders, however, t-ZrO2 phase could not be retained, regardless of TiO2 content. For 5∼10mol% TiO2, they are composed of only m-ZrO2 phase, and for 15∼20mol% TiO2, m-ZrO2/ZrTiO4 composites were obtained. Tetragonal zirconia polycrystal (TZP) could not be obtained. In the ternary system, t-ZrO2 phase was also obtained by calcination of precursors at any content of TiO2 and CeO2. The sintered body consisted of only t-ZrO2 phase by using the powder with 10mol% TiO2 and 10mol% CeO2. The polycrystal has the relative density of approximately 98%.
収録刊行物
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- 材料
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材料 60 (6), 504-509, 2011
公益社団法人 日本材料学会
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詳細情報 詳細情報について
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- CRID
- 1390282680396751872
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- NII論文ID
- 130000861076
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- NII書誌ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL書誌ID
- 11154600
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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サーチ
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