Hydrothermal Corrosion and Strength Degradation of Aluminum Nitride Ceramics

Journal of the American Ceramic Society - Tập 83 Số 12 - Trang 3216-3218 - 2000
Hiroyasu Tamai1,2, Takashi Hamauzu3, Akihito Ryumon3, Kaoru Aoki4, Kōhei Oda4,2, Tetsuo Yoshio5,2
1Department of Applied Technology, Industrial Technology Institute, Tottori, Yonago, Japan 683–0851
2*Member, American Ceramic Society.
3Faculty of Engineering, Okayama University, Okayama, Japan 700–0082
4Department of Materials Science, Yonago National College of Technology, Yonago, Japan 683–8502
5Faculty of Environmental Science and Technology, Okayama University, Okayama, Japan 700–0082

Tóm tắt

The hydrothermal corrosion and strength degradation of aluminum nitride (AlN) ceramics were investigated. The weight gain in AlN ceramics after corrosion occurred because of the formation of boehmite. The reaction kinetics of AlN with water were diffusion controlled through the boehmite product layer. At 180°C, immersion in water caused no strength degradation, and water vapor caused a 20% strength degradation. At 300°C, immersion in water caused a 20% strength degradation, and water vapor caused a 30% strength degradation.

Từ khóa


Tài liệu tham khảo

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Thông tin
Thông tin xuất bản

Journal of the American Ceramic Society

Tập 83 Số 12

3216-3218

Thông tin tác giả