本文采用二维相场模型模拟固相陶瓷烧结后期,晶粒和气孔耦合生长演化过程.以连续变化的组分参量和长程序参量(LRO)表征微观烧结体的组分相和晶相扩散拓扑结构,由Cahn-Hillard(CH)方程和Ginzburg-Laudau(TDGL)方程分别控制组分场和取向场时间相关的扩散演化,并且利用半隐傅立叶频域法高效地模拟了烧结后期晶粒和气孔拓扑形貌的演化过程和统计分析生长参数,并通过与完全致密体晶粒生长速率比较,量化分析残余气孔对晶粒生长的影响.
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