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impregnation, chemical vapor deposition method[7], precipitation and sol-gel techniques[8-9]. These methods all require the core material to be suspended in solvent(e.g. water). Coating by solid state reaction... and kinetic analysis of alumina coating The solid state reactions at room temperature are always ignored. Similar to the chemical reaction in solution, the chemical reaction in solid must satisfy......
First principles calculation on electronic structure, chemical bonding, elastic and optical properties of novel tungsten triborideWANG Yi-fu(王一夫)1, XIA Qing-lin(夏庆林)2, YU Yan(余燕)2(1. Key Laboratory.... School of Physics and Electronics, Central South University, Changsha 410083, China)Abstract:The electronic structures, chemical bonding, elastic and optical properties of the novel hP24 phase WB3 were......
composites with various needled preforms prepared by isothermal chemical vapor infiltration TANG Su-fang(汤素芳), WANG Dao-ling(王道岭), DENG Jing-yi(邓景屹), LIU Wen-chuan(刘文川), YANG Ke(杨 柯) (Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China) Abstract: The ablation properties of C/C composites with four different needled preforms prepared by isothermal chemical vapor......
of the self-assembled coating. Key words: self-assembled coating; particle size; gel permeation chromatography; silane; corrosion resistance 1 Introduction Due to the unique chemical... is attributed to tailorable chemical structure design, creating a way to develop long-live, environmentally compliant coating for protection of aluminum alloy. The self-assembled nano-phased particle coating......
, Shenyang, 110015, China摘 要:<正> The morphology and microstructure of magnetron sputtered coating of superalloy K38G on cast al-loy K38G have been investigated by means of SEM, TEM and XRD. The results indicate that thesputtered coating is identical to the substrate in chemical composition but it is composed only of γphase without γ’. The sputtered......
Oxidation resistance of co-deposited Ni-SiC nanocomposite coating ZHOU Yue-bo(周月波), DING Yuan-zhu(丁元柱) Department of Materials Science and Engineering, Heilongjiang Institute of Science...) nanocomposite coating was prepared from a nickel sulfate bath by co-electrodeposition of Ni and SiC nanoparticles in an average size of 30 nm. The oxidation at 1 000 ℃ shows that the Ni-6.0%SiC......
of magnesium and its alloys have been developed[2]. Among various surface treatments, the chemical conversion coating process is one of important corrosion protective methods of magnesium alloys... mainly consists of organic compound containing benzene ring, which forms a chemical bond with magnesium. 3.2 Corrosion characteristics of coating Fig.4 shows the electrochemical polarization curves......
Cathodic phosphate coating containing nano zinc particles on magnesium alloy NIU Li-yuan(牛丽媛) Zhejiang Industry and Trade Polytechnic, Advanced Material Research and Development...; Abstract: A technology for preparation of a cathodic phosphate coating mainly containing nano metallic zinc particles and phosphate......
PHOSPHATE COATING 2.1 Calcium phosphate The most common apatite calcium phosphate ceramic used in medicine is hydroxyapatite(HA), a material with a hexagonal crystal lattice, an ideal chemical...Article ID: 1003-6326(2005)05-0957-08 Coating of calcium phosphate on biometallic materials by electrophoretic deposition ZHANG Er-lin(张二林), YANG Ke(杨 柯) (Institute of Metal Research......
Article ID: 1003-6326(2005)06-1199-07 Biomimetic coating of calcium phosphate on biometallic materials ZHANG Er-lin(张二林), YANG Ke(杨 柯) (Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China) Abstract: The biomimetic coating process in comparison with other processes is reviewed. This processing shows advantages in the surface bio-modification......
