共搜索到18162条信息，每页显示10条信息，共1817页。用时：0小时0分0秒529毫秒
were deposited on C/C-SiC and C/C-ZrC substrates by atmospheric pressure chemical vapor deposition (APCVD) with ZrCl4-CO2-H2-Ar system at 900-1 500 ℃, respectively. The phase composition and surface... is smooth while that is rough on C/C-ZrC substrate. Key words: ZrO2 coatings; chemical vapor deposition; deposition temperature; microstructure; micro-mechanical properties C/C复合材料具有高比强度,高比模量,良好的韧性以及高温下较高的强度......
......
influences on hot filament chemical vapor deposition (HFCVD) diamond films growth on inner hole surfaces of WC-Co substrates mainly include the substrate temperature (t), carbon content (φ), total pressure (p... performance, the key deposition parameters were finally optimized as: t=830 °C, φ=4.5%, p=4000 Pa, F=800 mL/min. Key words: hot filament chemical vapor deposition diamond film; inner hole surface......
on the surface of carbon fibers by catalytic chemical vapor deposition using electroplated Ni as catalyst. The modification and mechanism of nanofibers on the pyrocarbon deposition during chemical vapor...Effect of nanofibers at surface of carbon fibers on microstructure of carbon/carbon composites during chemical vapor infiltrationXIAO Peng(肖鹏), CHEN Jie(陈洁), XU Xian-feng(徐先锋), LU Xue-feng(卢雪峰......
; 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... deposition and infiltration processes of carbon materials [J]. Carbon, 2002, 40(5): 641-657. [12] ANTES J, HU Z, ZHANG W, HUTTINGER K J. Chemistry and kinetics of chemical vapor deposition of pyrocarbon VII......
enhanced chemical vapor deposition (DC-PECVD). NH3 gas etches Ni catalyst layer to form nanoscale islands while NH3 plasma etches the deposited amorphous carbon. Based on the etching effect of NH3 gas on Ni... transmission electron microscopy (HTEM) shows fishbone structure of CNTs grown by PECVD. Key words: carbon nanotube; ammonia etching; nickel catalyst; plasma enhanced chemical vapor deposition (PECVD......
of Aeronautics and Astronautics, Beijing 100083, China Received 20 April 2006; accepted 30 June 2006 Abstract: The chemical vapor(CVD) deposition-diffusion method was applied to prepare FeSi alloys.... The micro-hardnesses were also evaluated along the cross-section after various annealings. Key words: FeSi alloy; chemical vapor deposition; diffusion; magnetic properties; micro-hardness 1 Introduction......
. Multi-dimensional simulations of the chemical vapor deposition for thermal barrier coatings using ZrCl4-H2-CO2-Ar gas mixtures [J]. Surface and Coatings Technology,2006, 201(3/4): 1065-1073. [8...): 67-68. [11] IKAWA K, IWAMOTO K. Coating microspheres with zirconium carbide-carbon alloy by iodide process [J]. J Nucl Sci and Tech, 1974, 11(6): 263-267. [12] REYNOLDS G H. Chemical vapor deposition......
......
. The photocurrent increases rapidly at first and becomes stable for the "pumping" effect with the radiation time. Key words: diamond film; hot filament chemical vapor deposition(HFCVD); annealing...]. Especially, with the development of chemical vapor deposition (CVD) technique, CVD diamond film has been interested in wide fields[3]. Several studies have shown that chemical vapor deposited......
