A Study of Ceramic Powder Preparation: Kinetics and Mechanisms of Precursor Precipitation

本研究是在结晶和沉淀领域进行的 微溶盐的研究，以发展专业知识， 陶瓷粉末的沉淀和加工。 的程序 与桑迪亚国家大学的工作人员合作， 实验室在开发新的实验技术。 该研究计划的目标是开发一种基本的 了解沉淀过程中涉及的机制， 用于制造电子器件的陶瓷前体粉末 件. 陶瓷的电子性能是至关重要的 取决于前体的化学和物理性质 粉末 从溶液中沉淀出来的化学物质 获得所需粉末性能的方法。 为了 充分利用这种加工方式并控制最终用途 陶瓷的性能，沉淀的机制是 研究了 工作的重点是制备掺杂的 陶瓷压敏电阻器用氧化锌粉末，但技术和 所开发的分析通常可以应用于其他化合物， 其他陶瓷材料类型。

The research is in the area of crystallization and precipitation of sparingly soluble salts to develop expertise in the study of the precipitation and processing of ceramic powders. The programs is complemented by collaboration with staff at Sandia National Laboratories in the development of novel experimental techniques. The objective of the research program is to develop a fundamental understanding of the mechanisms involved in the precipitation of ceramic precursor powders for the manufacture of electronic components. The electronic properties of ceramics are critically dependent on the chemical and physical properties of the precursor powder. Precipitation from solution is proposed as the chemical method for obtaining the desired powder properties. In order to fully exploit this type of processing and control the end use properties of the ceramic, the mechanisms of precipitation are studied. The focus of the work is on the preparation of doped zinc oxide powders for ceramic varistors, but the techniques and analyses developed may be generally applied to other compounds and other ceramic material types.