Acquisition of a Modern Hot Press

这种新型热压机将用于制备陶瓷样品 具有微设计的界面缺陷结构。 热压机 能够达到至少1600 ℃的温度， 低至10_3-10-4，速率约为1-2 ℃/min。 位于陶瓷研究实验室，在部门内 材料科学与矿物工程 研究 受影响最大的程序涉及一种将两种方法结合起来的方法， 采用离子束蚀刻和热压的图形技术， 产生微设计的界面结构。 该方法允许 研究高温裂纹愈合的模型实验， 孔隙边界相互作用、孔隙阻力、孔隙粗化和孔隙 消除和网络演化。 示例 教师正在进行的项目包括应用 微设计界面裂纹愈合研究和孔隙边界 陶瓷材料中的相互作用，陶瓷-陶瓷连接， 陶瓷-金属界面研究，其研究项目包括 烧结研究 与科学家合作研究课题 在其他大学和行业包括断裂行为的 陶瓷-金属界面，蠕变空蚀，内部偏析 腔表面，单晶晶须的气相生长，以及 濒死体验 大约有12名研究生正在与教师合作 成员直接和几个本科生。

This new hot press will to be used to fabricate ceramic samples with microdesigned interfacial defect structures. The hot press is capable of reaching a temperature of at least 1600 C, at pressures as low as 10_3-10-4, at a rate of about 1-2 C/min. It would be housed in the Ceramics Research Laboratory, within the Department of Materials Science and Mineral Engineering. The research programs most affected involve a method of combining photolitho- graphic techniques with ion beam etching and hot pressing to produce microdesigned interface structures. The method allows model experiments investigating high-temperature crack healing, pore boundary interaciton, pore drag, pore coarsening, and pore elimination and network evolution during sintering. Examples of projects underway by faculty members include applications of microdesigned interfaces to crack healing studies and pore-boundary interactions in ceramic materials, ceramic-ceramic joining, ceramic-metal interface studies, whose research projects include sintering studies. Collaborative research topics with scientists at other universities and industry include fracture behavior of ceramic-metal interfaces, creep cavitation, segregation to internal cavity surfaces, vapor phase growth of single crystal whiskers, and NDE. About 12 graduate students are working with the faculty members directly and several undergraduates.