报告题目：
Chemical vapour deposited nanocrystalline diamond coated tools for turning and drilling operations
报告摘要：
CVD diamond coated tools were developed for applications as different as turning of cemented carbides and bone drilling. The diamond films were deposited by Microwave Plasma Chemical Vapour Deposition (MPCVD) and Hot Filament Chemical Vapour Deposition (HFCVD) with grain sizes variation. Silicon nitride (Si3N4) ceramic cutting tools were chosen for the base material as they are chemical and thermal compatible, leading to high diamond film adhesion levels.
It was possible to drill with a CVD diamond Si3N4 coated tool with significantly lower forces, lower rise in temperature, lower spindle speeds and higher infeed rates, when compared to the commercial steel drill bits.
报告人简介：
Flávia A. Almeida is post doctor in the Ceramics and Glass Engineering Department at University of Aveiro, Portugal. She was born in Brazil, where she got her graduation in Chemical Engineering and the Master degree in Materials Science. She got her PhD degree in Materials Science and Engineering, University of Aveiro in 2007. Her research involves the development of diamond coatings to be used in cutting and tribological applications. She has published more than twenty scientific articles in specialized magazines of her field and presented her works in several international scientific meetings
报告时间：2010年5月21日上午10：30
报告地点：曹光彪楼322会议室
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材料系金属材料研究所
2010.05.18
