二氧化锆的制备及其性能检测.doc

摘 要 本文简要介绍目前二氧化锆的制备方法（共沉淀法、溶胶—凝胶法、喷雾热解法、金属有机物水解法、水热法、反向胶团法等），主要以水热法为例，详细介绍其制备过程及步骤，并检测制得二氧化锆的各项性能（红外、XRD）。本文采用水热法制备氧化钇稳定氧化锆(YSZ)纳米粉术，以Zr4+和Y3+的氢氧化物为热前驱体，氢氧化钾和碳酸钾作矿化剂，研究水热处理温度、PH值和矿化剂浓度对水热合成纳米氧化锆晶型结构的影响。实验的各项性能结果表明：高的反应温度有利于立方氧化锆的生成，矿化剂的加入对合成产物晶化度和晶粒大小有显著的影响，体系pH值会影响水热前驱体的结构，进而影响水热合成纳米氧化锆的晶型。在Y2O3 掺杂量比较大的时候，PH值的变化对氧化锆晶型的影响不明显，晶型由掺杂量决定。在本文中还附有二氧化锆制备步骤及其性能检测的各种实验数据，用到的实验仪器，可操作性强，从而为制备粒度和晶型可控的纳米二氧化锆粉末提供实验依据。 关键词： 二氧化锆 制备方法 水热法 性能检测 Title Preparation and properties of zirconium dioxide detection Abstract This paper introduces the preparation methods of the present zirconia（Coprecipitation、Sol - gel method、Spray pyrolysis、Hydrolysis of metal organic、Hydrothermal、Reverse micelles and so on）. Case Study of the main hydrothermal. Details of their preparation process and steps, and detection system was the performance of zirconia (XRD). In this paper, hydrothermal yttria stabilized zirconia nano-powder technique to Zr4+ and Y3+ in the hydroxide precursor for the heat, potassium hydroxide and potassium carbonate as a mineralizer of hydrothermal treatment temperature, PH value and mineralizer concentration on the hydrothermal synthesis of nano-zirconia crystal structure. Experimental results show that the performance: the high temperature is conducive to the formation of cubic zirconia, the addition of mineralizer on the synthesis of the product crystallinity and grain size have significant effects, pH value of hydrothermal precursor structure, thereby affecting the hydrothermal synthesis of nano-crystalline zirconia. Y2O3 doping in time than the larger, pH values ??on the crystal structure of zirconia was not obvious, crystal form determined by the doping. Also included in this article zirconia preparation steps and performance testing of a variety of experimental data used in the experimental apparatus and operable so as to prepare a controlled particle size and crystal structure provide the experimental nano-zirconia powder basis. Keywords Zirconia Preparation Hyd