Lateral Growth Instabilities During Solid State Interface Reactions: Extension to Ternary Systems

固态界面反应期间的横向生长不稳定性：扩展到三元系统

• 批准号: 9410454
• 负责人: Stephen Hackney
• 金额: $ 20.43万
• 依托单位: Michigan Technological University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-01 至 1998-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9410454&HistoricalAwards=false
• 关键词: Lateral; Growth; Instabilities; During; Solid

9410454 Hackney The program examines the morphological stability of precipitates which form in the initial stages of precipitation at the interface between dissimilar materials in ternary systems. This program is unique in its focus on the lateral growth instabilities which occur during initial precipitate growth perpendicular to the direction of interdiffusion. A quantitative hypothesis has been developed which predicts how the addition of a third element affects morphological development during the lateral growth of interfacial reaction products. The prediction of the ternary effect is a function of the slope of the solvus with composition in an isothermal section of the ternary phase diagram and the degree of resistance to interdiffusion at the interface between the dissimilar materials. A critical experimental test of this hypothesis is to be carried out by studying precipitate morphology as the composition and interface characteristics are varied in a systematic manner. %%% The results of this grant could impact important processes in technology, such as diffusion bonding of different materials and/or reactions of substrates with thin metal films. ***

9410454 Hackney 该程序检查了在三元系统中不同材料之间的界面处的沉淀初始阶段形成的沉淀物的形态稳定性。 该程序的独特之处在于它关注垂直于相互扩散方向的初始沉淀物生长期间发生的横向生长不稳定性。 已经提出了定量假设，该假设预测第三种元素的添加如何影响界面反应产物横向生长期间的形态发展。 三元效应的预测是三元相图等温部分中的固溶线斜率与组成以及不同材料之间界面处的相互扩散阻力程度的函数。 该假设的关键实验测试是通过研究沉淀物形态来进行的，因为成分和界面特征以系统的方式变化。 %%% 这项资助的结果可能会影响重要的技术流程，例如不同材料的扩散粘合和/或基材与金属薄膜的反应。 ***