U.S.-Korea Cooperative Research: Alteration of the Effects of Sintering Additives on the Oxidation & Tribological Behavior of Silicon Nitride

DU 9710142该奖项支持史蒂文斯理工学院的杜宏华博士和韩国日月大学的Soo Lee博士之间的一个为期两年的合作研究项目，该项目的主题是“改变烧结添加剂对氮化硅的氧化和摩擦学行为的影响”。本研究将研究铝离子注入和添加氧化铝对烧成的氮化硅产品的影响。表面和晶界化学特性的实验将有助于更好地了解它们与氧化和磨损性能的关系，以及氮化硅陶瓷系统中的表面或界面反应、扩散和摩擦化学相互作用等基本现象。该项目将把韩国团队在陶瓷加工和烧结方面的专业知识与杜博士在这些材料耐腐蚀性方面的广泛工作结合起来。氮化硅陶瓷被广泛应用于先进发动机和其他结构应用中。因此，这些陶瓷的氧化和磨损是一个重要的工程问题。***

Du 9710142 This award supports a two-year collaborative research project between Dr. Honghua Du of the Stevens Institute of Technology and Dr. Soo Lee of Sun Moon University in Korea on "Alteration of the Effects of Sintering Additives on the Oxidation and Tribological Behavior of Silicon Nitride." The study will investigate the effects of aluminum ion implantation and the addition of alumina to silicon nitride products sintered with magnesia. Experimentation with surface and grain boundary chemical characteristics should lead to a better understanding of their relationship to oxidation and wear properties and to such basic phenomena as surface or interface reactions, diffusion, and tribochemical interactions in the silicon nitride ceramic system. This project will combine the expertise of the Korean team in the processing and sintering of ceramics with Dr. Du's extensive work on the corrosion resistance of these materials. Silicon nitride ceramics are used extensively in advanced engines and for other structural applications. Thus, the oxidation and wear of these ceramics presents important engineering issues. ***