Engineering Research Equipment Grant: Environmental Scanning Electron Microscope for In-Situ Manufacturing Processes, Materials Engineering and Tribological Studies

设备赠款将提供一台环境扫描电子显微镜(ESEM)，用于对一系列制造工艺、材料工程和摩擦学问题进行现场动态研究。这一革命性的设备允许在不同环境的动态条件下(室内压力从0.1到50托的气体或液体以及高达1000摄氏度的不同温度)检查样品或现场记录现象。大型样品室(12“x 12”x 12“)可容纳多种样品，可模拟制造过程(如切割金属成型、塑料注射成型等)、摩擦学现象和材料测试(拉伸、压缩扭转、疲劳、应力腐蚀开裂、组合加载)。一些现场研究包括热腐蚀；在一系列载荷条件下环氧玻璃复合材料中的玻璃纤维或铝基中的碳化硅纤维的失效；不同切削液在不同材料加工中的影响；玻璃、陶瓷、聚合物和复合材料的加工；金属成形；润滑剂在摩擦和磨损中的影响；金属的凝固；以及低压化学气相沉积多晶金刚石薄膜的成核和生长机理。

The equipment grant will provide an Environmental Scanning Electron Microscope (ESEM) for conducting in-situ dynamic studies on a range of manufacturing processes, materials engineering and tribological problems. This revolutionary equipment allows samples to be examined, or in-situ phenomenon recorded, under dynamic conditions in different environments (gaseous or liquid at chamber pressures from 0.1 to 50 torr and at different temperatures up to 1000C. The large specimen chamber (12" x 12" x 12") can accommodate a wide range of samples allowing the simulation of manufacturing processes (eg., cutting metal forming, plastics injection molding, etc.), tribological phenomena, and materials testing (tension, compression torsion, fatigue, stress corrosion cracking, combined loading). Some of the in situ studies include hot corrosion; failure of glass fibers in an epoxy-glass composite or silicon carbide fibers in an aluminum matrix under a range of loading conditions; effect of various cutting fluids in machining of different materials; machining of glass, ceramics, polymers, and composites; metal forming; effect of lubricants in friction and wear; solidification of metals; and the mechanism of nucleation and growth of polycrystalline diamond films made by low pressure chemical vapor deposition techniques.