共搜索到15792条信息,每页显示10条信息,共1580页。用时:0小时0分0秒187毫秒
Influence of Rare Earths on Contact Fatigue of Rail Steels ZHU Gui-lan1,MA Teng1 (1.Department of Physics, Central Iron and Steel Research Institute, Beijing 100081, China) Abstract:Rail/wheel contact fatigue of NbRE rail, Nb rail and U74 rail was investigated using contact fatigue tester. Microstructure and morphology as well as microhardness in the fatigue profiles were analyzed by scanning......
Sintering behaviour of feldspar and influence of electric charge effectsW.Gallala,M.E.Gaied摘 要:The characterization of feldspar for electric porcelain and the behaviour of these materials after heating at 1230°C were studied. X-ray diffraction (XRD) and scanning electronic microscopy (SEM) were used to identify the present phases and the densification......
Influence of sample surface condition on nano indentation experimentWANG Yanli, LIN Zhi, LIN Junpin, PENG Jihua, and CHEN GuoliangState Key laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China摘 要:<正>The microhardness and elastic modules of the materials were measured using the Nano......
Influence of Structure Parameters on Performance of the Thermoelectric Module杜群贵School of Mechanical and Auto Engineering,South China University of Technology摘 要:A numerical model of thermoelectric module (TEM) is created by academic analysis,and the impacts of the resistance ratio and thermoelement size on the output power and thermoelectric efficiency......
Influence of Nucleating Agent on the Formation of C4A3S郭惠玲,谢峻林Key Laboratory for Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology摘 要:The reference test methods are carried out parallelly, by means of chemical analysis, X-ray diffraction, differential scanning calorimetry-thermogravimetry, scanning......
Influence of Structure of Porous Carbon on the Capacitive Performance黄家兴,莫岩,付云枝,CHEN YongState Key Laboratory of Marine Resource Utilization in South China Sea,Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources摘 要:<正>Due to their high power density,wide operating temperature range,ultra-long cycle life,environmental......
structural analysis. DEMATEL method clarifies contribution degree and relation degree of elements in system, ISM method realizes grade division of system structure, and ANP method adds mutual influence... and their influence relations were omitted, and that they realized the quantification of mutual influencing degree between important elements, but it was possible to lead to a wrong grade division......
The Influence of Carburizing Parameters on Carbon Transfer Coefficient Tadeusz Sobusiak1 (1.Institute of Precision Mechanics, Warsaw, Poland) 摘要:Definition of coefficient of carbon transfer in European Standard (EN 10052) is presented as: "Mass of carbon transferred from carburizing medium into the steel, per unit surface area per second for a unit difference between the carbon potential......
Influence of Cerium and Yttrium on Cu-Cr-Zr Alloys Cheng Lei1,Mi Xujun1,Liu Yong2,Xie Shuisheng1,Wu Pengyue1,Li Huaqing1 (1.General Research Institute for Nonferrous Metals, State Key Laboratory for Fabrication and Processing of Nonferrous Metals, Beijing 100088, China;2.School of Materials Science & Engineering, Henan University of Science & Technology, Luoyang 471003, China) Abstract:Testing......
Influence of Rinse on Self-Activated Luminescence in ZnS Nanocrystallite 王铁1,于立新1,王晓君1,宋宏伟1,张晓波1,谢玉华1 (1.Key Laboratory of Excited State Physics, Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China) Abstract:The self-activated(SA) luminescence in ZnS nanoparticles was studied by comparing the UV-light irradiation induced spectral change, Raman......