摘要
利用XRD对超高温陶瓷粉进行分析,从衍射谱图能得到各物相组成为ZrB2、SiC、ZrO2,并且采用全谱拟合法对各物相进行定量计算。结果显示,定量分析结果的绝对误差小于2%,全谱拟合分析方法能准确地对超高温陶瓷的物相进行定量分析。
The phase composition of ZrB2-SIC ultrahigh temperature ceramics (UTC)are analyzed by XRD, and the quantitative analysis data were obtained from the Rietveld analyses. The results show that the phase compositions of UTC are ZrB/, SiC, ZrO2, the quantitative analysis data from this work are close to the real ratio of the samples. The Rietveld methord is reliable for the quantitative phase analysis of the ZrB2-SiC ultrahigh temperature ceramics.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2013年第2期95-98,共4页
Aerospace Materials & Technology
关键词
高温陶瓷
X射线衍射
全谱拟合法
物相定量
ZrB2--SiC
Ultrahigh temperature ceramic, X-ray diffraction, Rietiveld methord, Quantitative analysis, ZrB2-SIC