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《Materials Science and Engineering of Powder Metallurgy》 2009-01
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Diamond thin film/berillia and its thermal conductivity

FANG Mei, YU Zhi-ming, XIAO Zhu, CHEN Shuang, CHEN Yong-qin (1. School of Materials Science and Engineering, Central South University, Changsha 410083, China; 2. Key Laboratory of Ministry of education, Central South University, Changsha 410083, China)  
In order to improve the thermal conductivity of berillia substrates, diamond films were deposited on its surface by means of hot-filament chemical vapor deposition(HFCVD). The surface structures and morphologies were investigated by scanning electron microscopy(SEM) and atomic force microscopy(AFM), while the components and the thermal conductivities were detected by X-ray diffraction(XRD) and laser-diathermometer respectively. The results show that diamond films have improved the conductivites of berillia by 12.1%~34.4% resulting from different BeO pre-treatments and the combination modes of diamond /BeO.
【Fund】: 粉末冶金国家重点实验室开放基金
【CateGory Index】: TQ164
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