Microstructure evolution and growth behavior of rod-shaped ZrB2 in situ preparation of ZrB2-SiC composite powders
Microstructure evolution and growth behavior of rod-shaped ZrB2 in situ preparation of ZrB2-SiC composite powders
复制标题
原位制备ZrB2-SiC复合粉末棒状ZrB2的微观结构演变及生长行为
DOI：
10.1016/j.ceramint.2018.11.080
复制
发表时间：
2019-02-15
影响因子：
5.2
通讯作者：
Zhen, Qiang
中科院分区：
文献类型：
--
作者：
Lin, Yuehua;Liu, Jinghang;Zhen, Qiang
研究了不同热处理条件下原位合成ZrB 2-SiC复合粉末棒状ZrB 2的组织演变。采用TG-DSC、XRD、SEM、EDS、TEM和HRTEM等手段对棒状ZrB 2的制备、物相组成和形貌进行了表征。结果，微小的ZrB 2棒从液相中生长出来，并采用分层生长过程。随着棒在纵向和横向方向上的生长，周围的液相被消耗，并且相邻的棒开始平行生长或交叉生长以形成多个结构。
The microstructure evolution of rod-shaped ZrB2 in situ synthesis of ZrB2-SiC composite powder was studied under different heat treatment. TG-DSC, XRD, SEM, EDS, TEM, and HRTEM were used to describe the preparation, phase composition and morphology of rod-shaped ZrB2. As a result, tiny ZrB2 rod grew out of the liquid phase and adopts a layered growth process. As the rod grew in the longitudinal and transverse directions, the surrounding liquid phase was consumed, and the adjacent rods began to grow in parallel or cross grow to form multiple structures.