Engineering Research Equipment: High Pressure Technology inNoncatalytic Reaction Engineering Problems

这笔设备赠款用于购买一个大容量、高温、中压(200atm)的装置，在该装置中，PI将生产先进的陶瓷材料。同时，通用电气向该研究小组捐赠了几个小体积、高温、高压(80,000大气压)装置，从而建立了一个可行的设备核心，用于研究制造这些材料所需的最佳反应条件。纽约州立大学-布法罗正在为PI提供额外的空间，以加强整体努力，使其成为世界级的实验设施。先进陶瓷与传统陶瓷的不同之处在于它们所具有的特殊性质以及它们所需的复杂加工。先进陶瓷材料的一些例子是氮化硅(Si3N4)、碳化硅(SIC)和氮化铝(AlN)，它们可能有许多用途，例如用作电子和光学设备的耐热和耐磨部件。PI发展了一种新的概念，即在单个反应器中利用所涉及的强放热反应释放的热，在很短的时间内实现高温、高压、自蔓延同时合成和烧结。他还在研究一种新的概念，将不同的陶瓷材料或陶瓷与金属连接起来，特别是将氮化硅、氧化铝和陶瓷材料连接到钼和不锈钢上。该专用装置可用于较大尺寸(如6“×6”×2“)的样品，如TiB_2和碳化硅管材的焊接、钼片的焊接、硅粉在氮气中的燃烧等。

This equipment grant is for the purchase of a high volume, high temperature, medium pressure (200 atm) unit in which the PI will produce advanced ceramic materials. Simultaneously, General Electric is donating several small volume, high temperature, high pressure (80,000 atm) units to this research group thus establishing a viable core of equipment for the study of optimal reaction conditions needed for the manufacture of these materials. SUNY-Buffalo is providing additional space to the PI to enhance the overall effort and make this a world-class experimental facility. Advanced ceramics are differentiated from traditional ceramics by the specialized properties they posses as well as by the sophisticated processing they require. Some examples of advanced ceramic materials are silicon nitride (Si3N4), silicon carbide (SiC) and aluminum nitride (AlN) and they might have many uses for example as heat - and wear-resistant parts to electronic and optical devices. The PI has developed a new concept for high-temperature, high-pressure, self-propagating simultaneous synthesis and sintering in a single reactor in a very short period of time utilizing the liberation of heat by the strongly exothermic reactions involved. He is also looking at a new concept for bonding between different ceramic materials or ceramics and metals, specifically bonding silicon nitride, aluminum oxide and ceramic materials to molybdenum and stainless steel. This specific apparatus will be used for samples of larger dimensions (e.g. 6" x 6" x 2") such as welding of TiB2 and SiC tubes, welding to Mo sheets, combustion of Si powder in N2, etc.