Plasma Sintering of Ceramics

这项建议概述了一种多目标的方法，通过广泛系统地研究在其他相同的等离子体和非等离子体条件下的烧结、缺陷结构和扩散，来量化和发现先前观察到的在高温等离子体中促进氧化铝和其他氧化物陶瓷烧结的机制。建立一个通用的烧结模型，对等离子烧结和非等离子烧结进行定量比较。该模型将进一步发展成为一种更通用的工具，最终帮助预测等离子体内或等离子体外的烧结行为。%本建议希望使用在烧结过程中观察到的缺陷结构及其或演化作为追踪烧结机制及其动力学的一种手段。将同时使用等离子和非等离子烧结条件。将努力使这两组条件与有无血浆作为唯一变量几乎相同。采用烧结模型与计算结果进行了比较。这将提高等离子烧结陶瓷的实用性。

This proposal outlined a multitargeted approach to quantify and find the mechanisms of the previously observed enhancement of sintering of alumina and other oxide ceramics in high temperature plasmas through an extensive systematic investigation of sintering, defect structures and diffusion under otherwise identical plasma and non-plasma conditions. A universal sintering model will be exploited for quantitative comparison of plasma and non-plasma sintering. This model will be further developed as a more general tool to ultimately assist in prediction of sintering behavior, in or out of plasmas. %%%% This proposal expects to use the observed defect structure and their or evolutions during the sintering process as a means to trace the sintering mechanisms and their kinectics. Both the plasma and non-plasma sintering conditions will be used. Efforts will be made to make both sets of conditions nearly identical with the presence or absence of plasma as the only variable. Sintering model will be used to compare with the results. It will enhance the usefulness of the plasma sintering of ceramics.