共搜索到1070条信息,每页显示10条信息,共107页。用时:0小时0分0秒413毫秒
and fast method for polishing and shaping diamond films. In this study, the influence of polishing parameters such as polishing temperature and time on the surface crystallinity and phase composition of diamond films was thoroughly investigated via the analysis of Raman spectra such as FWHM and ID/IG. Moreover, the issue on the graphitization of diamond after polishing with Ce was further......
electrolyte prepared from quaternary ammonium salts as a green polishing solution. Voltammetry and chronoamperometry tests were conducted to determine the optimum conditions for electrochemical polishing. Atomic force microscopy(AFM) revealed nanoscale effectiveness of each polishing treatment. Atomic force microscopy provided an overall observation of the material interface between the treated......
EXPERIMENTAL STUDIES OF NEW TECHNOLOGY ON HIGH GLOSSINESS GRANITE SURFACE金有道摘 要:<正> On the basis of analysing thecharacter of granite and its polishingtechnology,the authors have manufactureda kind of polishing disk to polish graniteand good results have been obtained.Through studying the polishing process ofgranite in theory and experiment......
double side lapping and mechanical polishing in much less time and it can replace double side lapping and mechanical polishing and reduce the removal amount of chemical mechanical polishing. Key words... polishing (MP) and chemical mechanical polishing (CMP) [5,6]. However, good quality SiC wafers are very difficult to obtain, as SiC is extremely hard, extremely brittle and extremely chemically stable......
substrate. In this work,the electrochemical polishing of long-length Hastelloy C-276 alloy was studied, and its process parameters,characterized roughness and other properties were investigated. A 10-meter-long Hastelloy C-276 alloy was prepared by electrochemical polishing. The following optimized processing parameters are obtained:temperature of 45℃, current density of 0.439 A cm-2 and polishing time......
) Abstract: The effect of surface machining state on the fatigue property of Ti-1023 titanium alloy was studied. The results show that the test sample surface roughness by longitudinal polishing is one order of magnitude lower than that by circumferential grinding, the surface compressive stress of longitudinal polishing samples is threefold of that of circumferential grinding samples; the rotating......
化学机械抛光的理论模型研究综述黄传锦,周海,陈西府盐城工学院机械工程学院摘 要:化学机械抛光(Chemical Mechanical Polishing,CMP)是当今唯一能够提供全局平面化的技术,其抛光机理的研究是当前的热点.综述了考虑抛光液和抛光垫特性的抛光机理模型,分析了各模型的相关特点,最后对CMP模型的发展和研究方向提出展望.关键词:化学机械抛光;平坦化;抛光率;抛光垫;......
to study the effects of surface mechanical treatment (shot blasting and polishing) on the coherent strength and intergranular corrosion (IGC) of the coated 5××× aluminium alloy. The results show that the surface mechanical treatments (shot blasting and polishing) can markedly improve the adhesive strength by increasing the cleanliness and roughness of the substrate. The adhesive strengths after shot......
-discharge efficiency exceeding 80/ has been obtained for the titration sample. The electro-chemical reaction process of two kinds of synthesized SnSb composite electrodes was characterized by cyclic......
diffraction,field emission scanning electron microscopy,transmission electron microscopy,Fourier transform infrared,thermogravimetric analyzer,and Raman study.The optical band gap energy and electro-chemical......