Plasma Sintering of Ceramics

陶瓷的等离子烧结

• 批准号: 9200128
• 负责人: D. Lynn Johnson
• 金额: $ 33.77万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-12-01 至 1996-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9200128&HistoricalAwards=false
• 关键词: Plasma; Sintering; Ceramics

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.

该提案概述了一种多目标方法，通过对其他相同的等离子体和非等离子体条件下的烧结、缺陷结构和扩散进行广泛的系统研究，量化和发现先前观察到的高温等离子体中氧化铝和其他氧化物陶瓷的烧结增强的机制。 将利用通用烧结模型对等离子体和非等离子体烧结进行定量比较。 该模型将进一步开发为更通用的工具，最终帮助预测等离子体内外的烧结行为。 %%%% 该提案期望使用在烧结过程中观察到的缺陷结构及其演变作为追踪烧结机制及其动力学的手段。 将使用等离子体和非等离子体烧结条件。 将努力使两组条件几乎相同，并将血浆的存在或不存在作为唯一的变量。 将使用烧结模型与结果进行比较。 它将增强陶瓷等离子烧结的实用性。