基于国外定向凝固氧化物/氧化物自生复合陶瓷的晶体生长动力学行为研究,阐述了其动力学机制,分析动力学因素对微观结构的影响,探讨了晶体生长动力学行为与微观结构之间的关系;同时结合以重力、超重力下燃烧合成、快速凝固技术所制备的新型高强韧Al2O3/YSZ自生复合陶瓷,探讨了自生复合陶瓷在快速凝固条件下的晶体生长动力学行为.结合定向凝固与快速凝固两种晶体生长机制,得出过冷度、凝固界面前沿的温度梯度是影响晶体生长方式的重要因素,且受二者控制的晶体生长速率则决定材料的微观结构与形态.
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