RIA: Tough Ceramics? An Analysis of Fatigue and Creep of A12 03 with Controlled Amounts of SI02

本RIA研究的目的是提高 氧化铝陶瓷高温抗断裂性能 向组合物中加入不同量的玻璃形成二氧化硅。 是 预计玻璃相将有助于裂纹桥接， 提高温度，从而改善韧性。 详细 高温疲劳和蠕变裂纹扩展研究将 结果与微观结构和 以确定管理机制。

The objective of this RIA research is to improve the elevated temperature fracture resistance of alumina ceramics by adding various amounts of glass-forming silica to the composition. It is expected that the glassy phase will aid in crack bridging at elevated temperature and thereby improve toughness. A detailed study of elevated temperature fatigue and creep crack growth will be made and the results correlated with microstructure and composition in order to identify the governing mechanisms.