Ti－Zr－N三元陶瓷调幅相的结构与成分分析

ANALYSIS OF STRUCTURE AND COMPOSITION DEMIXING PHASES IN Ti-Zr-N TERNARY CERAMIC COMPOSITE

通过对高纯ＴｉＺｒ（Ｔｉ／Ｚｒ＝５０／５０，原子百分比）合金的高温氮化和高温退火制取了Ｔｉ－Ｚｒ－Ｎ三元系复合陶瓷实体材料。应用ｘ射线衍射（ＸＲＤ）、扫描及透射电子显微镜（ＳＥＭ，ＴＥＭ）、电子能量损失谱（ＥＥＬＳ）等方法分析研究了该（Ｔｉ，Ｚｒ）Ｎ复合陶瓷材料中调幅相的晶体学性质、显微结构特征及化学组成。

Ti-Zr-N ternary ceramic composite was prepared through nitridation of ultra pure TiZr alloy with atomic ratio Ti/Zr=50/50 at high temperature. This material, when annealed at 1350℃, will undergo a demixion (F2→F1+F3). The techniques including X-ray diffraction (XRD) , scanning and transmission electron microscopies (SEM and TEM) and electron energy-loss spectroscopy (EELS) were used to characterize the crystal structures,the microstructural properties and the chemical composition of the two demixing phases.