Low pressure sintering of sialon using different sintering additives
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概要
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The sintering behavior and the mechanical and oxidation properties of Sialon were investigated by varying the composition, amount, and cationic radii of sintering additives composed of AlN-Er_2O_3-M_2O_3 (M=Y or Sc). The optimum additive composition for the pressureless sintering of Sialon was determined to be (0.6 AlN: 0.4 [0.3 Er_2O_3: 0.7 M_2O_3]) and the optimum content was 10-15 mass%. The maximum relative densities of Sialon using AlN-Er_2O_3-Y_2O_3 and AlN-Er_2O_3-Sc_2O_3 additives (termed SAEY and SAES) were 94.4 and 97.9% at 0.1MPa N_2, respectively. The pressureless sintered SAES sample showed fairly high strength (506MPa) using the optimized additive composition. In both systems, the oxidation resistance was improved by decreasing the total amount of sintering additives.
- 社団法人日本セラミックス協会の論文
- 2008-01-01
著者
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Ahn K.
Ceramic Processing Research Center Hanyang University
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Lee S.
Max-planck-institut Fur Metallforschung And Institut Fur Nichtmetallische Anorganische Materialien U
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JUNG H.
Ceramic Processing Research Center, Hanyang University
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CHOI S.
Ceramic Processing Research Center, Hanyang University
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ALDINGER F.
Max-Planck-Institut fur Metallforschung and Institut fur Nichtmetallische Anorganische Materialien,
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Aldinger F.
Max-planck-institut Fur Metallforschung And Institut Fur Nichtmetallische Anorganische Materialien U
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Jung H.
Ceramic Processing Research Center Hanyang University