Reaction Bonding of Three-Layer Alumina-Based Composites

Journal of Materials Synthesis and Processing - Tập 7 - Trang 195-203 - 1999
Jihong She1, Sven Scheppokat2, Rolf Janssen2, Nils Claussen2
1Department of Energy Conversion, Osaka National Research Institute, Osaka, Japan
2Advanced Ceramics Group, Technische Universität Hamburg-Harburg, Hamburg, Germany

Tóm tắt

Three-layer alumina-based composites with Al2O3-containing mullite as the outer layer and ZrO2-containing alumina as the inner layer were fabricated by die-pressing and reaction bonding. The effects of the outer-layer compositions on the densification behavior of three-layer composites were investigated. The existence of residual stresses in the layers was verified using indentation methods. Compared with single-layer ceramics, three-layer composites exhibit an improved fracture toughness and an excellent damage resistance due to the presence of the compressive stresses in the outer layers.

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Thông tin
Thông tin xuất bản

Journal of Materials Synthesis and Processing

Tập 7

195-203

Thông tin tác giả