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Oxidation mechanisms of C-SiC-TaC-C composites prepared by chemical vapor infiltration CHEN Zhao-ke(陈招科), XIONG Xiang(熊翔), HUANG Bai-yun(黄伯云), LI Guo-dong(李国栋), XIAO Peng(肖鹏), WANG Ya-lei(王雅雷... composites by chemical vapor infiltration (CVI) methods. The oxidation-resistance properties of C-SiC-TaC-C composites were studied by X-Ray diffractometry (XRD), JEOL-6360LV scanning electronic microscopy......
powders Fig. 2 Vapor pressure of rhenium oxides at different temperatures [17,18] Fig. 3 Oxygen potential diagram of Re-O system In the reduction zone, ReO4 and Re2O7 are reduced at 1273.15 K by H2... indicated that Re2O7 could be prevented from further decomposition through controlling the oxygen partial pressure higher than 10-1.248 Pa in the pyrolysis of ammonium perrhenate. This result was further......
of the precursor gas in the chemistry vapor deposition furnace are analyzed, and differential equations are deduced which characterize the relationship among the pressure inside the felt...; accepted 28 March 2011 Abstract: In the chemical vapor deposition (CVD) process of C/C composites, the dynamics and mechanism of precursor gas flowing behavior were analyzed mathematically, in which......
识码:A Oxidation kinetics of NiCoCrAlYTa coating by low pressure plasma spraying ZHOU Ke-song1, LIANG Xing-hua1, 2, LIU Min1, DENG Chang-guang1 (1. Material Surface Center, Guangzhou Research... on Ni-based single crystal super-alloys by low pressure plasma spraying (LPPS). Oxidation kinetics of the coating oxidated for 200 h at three different temperatures was investigated. The results show......
Preparation of diamond/Cu microchannel heat sink by chemical vapor depositionLIU Xue-zhang(刘学璋)1, LUO Hao(罗浩)2, SU Xu(苏栩)2, YU Zhi-ming(余志明)2(1. School of Materials and Mechanical Engineering... was tightly deposited by hot-filament chemical vapor deposition (HF-CVD). The nucleation and growth of diamond were investigated with micro-Raman spectroscope and field emission scanning electron microscope......
Growth of ZnO Single Crystal by Chemical Vapor Transport Method Zhao Youwen1,Wei Xuecheng1,Li Jinmin1,Duan Manlong1,Dong Zhiyuan1 (1.Institute of Semiconductor, Chinese Academy of Sciences, Beijing... and X-ray diffraction technique. Key words:zinc oxide; chemical vapor transport; single crystal growth; [全文内容正在添加中] ......
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is vapor pressure of the reactant. 2.2 Sample preparation A kind of porous cordierite was used as substrate, Fig.1 Schematic diagram of chemical vapor deposition reactor: 1-Mass flow meters...: 1104-1109. [3] SOTIRCHOS S V, PAPASOULIOTIS G D. Experimental study of the atmospheric pressure chemical vapor deposition of silicon carbide from methyltrichlorosilane [J]. J Mater Res, 1999, 14......
Formation and Characterization of Pd,Pt and Pd-Pt Alloy Films on Polyimide by Catalyst-Enhanced Chemical Vapor Deposition周锦兰,俞开潮摘 要:Platinum, palladium and their alloy films on polyimide were formed by catalyst-enhanced chemical vapor deposition (CVD) in the carrier gas (N2, O2) at 220-300 °C under reduced pressure and normal pressure. The deposition......
): 13-29. [19] LANGMUIR I. The vapor pressure of metallic tungsten [J]. Physical Review (second series), 1913, 2(5): 329-342. [20] CHATTERJEE K, DOLLIMORE D, ALEXANDER K. A new application... Elimination of phosphorus vaporizing from molten silicon at finite reduced pressure ZHENG Song-sheng1, 2, Jafar SAFARIAN 2, Seongho SEOK3, Sungwook KIM3, Tangstad MERETE2, LUO Xue-tao1 1......