原位选择性氮化法制备t-ZrO_2-TiN复合粉料

In-Situ Synthesis of t-ZrO_2-TiN Powder by Selective Nitridation

研究以固溶反应为基础的粉料制备技术。应用热力学原理分析计算了 (Zr,Ti) O2 固溶系统的选择性的氮化条件 ,确定了反应温度对该系统氮化后相组成的影响。采用碳热还原法 ,在高纯氮气氛下原位反应生成氮化钛 ,同时保持氧化锆组成和结构不变。利用 X射线衍射和 X射线荧光光谱对氮化后粉料的物相和氮化效果进行分析 。

A novel powder preparation technology based on solid solution reaction was studied Principle of thermodynamics was utilized to calculate the selective nitridation conditions of (Zr,Ti)O 2 solid solution system The reaction temperature influence on the selective nitridation was determined Titanium nitride was synthesized by carbonthermal reduction under high concentration nitrogen atmosphere while the composition and structure of zirconia was unchanged The phase composition of the nitrided powder was characterized by X ray diffraction and the nitridation effect was analyzed by X ray fluorescence spectroscopy, and the morphology of powder was observed by scanning electron microscopy