共搜索到18451条信息,每页显示10条信息,共1846页。用时:0小时0分0秒440毫秒
of Newtonian heating is investigated. Flow is caused by a bidirectional stretching surface. Series solutions are constructed for the velocity and temperature fields. Convergence of series solutions is ensured... field.Key words:three-dimensional flow; Jeffrey fluid; Newtonian heating......
threedimensional(3D)-printed alumina ceramics examined in this study were found to have a layered structure,and interlayer spacing increased as the heating rate increased The pore diameter,shrinkage,flexural strength and hardness were found to decrease as the heating rate increased due to weak interfacial bonding between alumina particles Shrinkage was found to be much larger along the Z direction than......
J. Cent. South Univ. (2012) 19: 1590-1599 DOI: 10.1007/s11771-012-1181-4 Experimental assessment of two-phase bubble pump for solar water heating CHUNG Han-shik1, WOO Ju-sik2, SHIN Yong-han2, KIM... exchanger to measure the mass flow rate in the system. Solar irradiation was measured with photograph of insolation sensor with accuracy of ±0.2%. The device of this work is shown in Fig. 3. 3 System......
, heating time and temperature on pellet strength were investigated and the comparison to conventional heating was made. The results show that the pellets have wonderful microwave absorbability and the rate...:1672-7207(2009)01-0001-06 Improving strength of iron ore pellet containing organic binder by microwave heating 2HUANG Zhu-cheng1, LUO Yong1, JIANG Tao1, HUANG Gui-xiang1, PENG Hu2 (31. School......
in microwave heating field and conventional heating field increase, when the heating temperature and holding time are the same, the decarburization rate in microwave heating field is significantly higher than... decarburization reaction in conventional heating field is 169.65 kJ/mol. Microwave heating field can improve the kinetics condition of solid phase decarburization, increase the reaction rate of solid phase......
and hot extrusion concomitant with a reduced corrosion rate. The M23C6 carbide, generated in the heating process, was retained and distributed at the grain boundary during the process of hot...Effects of Heating and Hot Extrusion Process on Microstructure and Properties of Inconel 625 Alloy刘德学1,2,CHENG Xiaowei1,2,ZHANG Xiao1,2,DING Yutian1,21. School of Material Science and Engineering......
Effect of heating-rate on failure temperature of pre-loaded magnesium alloy LUO Ji(罗 吉)1, 2, CHEN Bin(陈 斌)1, 2, YUAN Quan(袁 权)1, 2, ZHANG Ding-fei(张丁非)3, QUAN Guo-zheng(权国政)3 1. College... were also observed. It is shown that the high heating-rate may cause stronger local thermal inconsistency, which remarkably increases the microdefects and reduces the macroscopic mechanical properties......
Effect of heating-rate on failure temperature of pre-loaded brass H62 CHEN Bin(陈斌), PENG Xiang-he(彭向和), FAN Jing-hong(范镜泓), SUN Shi-tao(孙士涛) College of Resource and Environment Science... were also observed and analyzed. It is found that the increase of either pre-loaded stress or heating-rate decreases the failure temperature. Metallographic analysis shows that high heating-rate may......
vol% and 4.0 vol% under anisothermal-oxidation conditions. A simultaneous thermal analyzer was employed to simulate the heating process of Si-containing steel in industrial reheating furnaces. The oxidation gas mixtures were introduced from the commencement of heating. The results show that the oxidizing rate remains constant in the isothermal holding process at high temperatures; therefore......
the LTPS procedure.The experimental results show that the reheating shrinkage rates of glass substrates are rarely changed with increasing the heating rate,but strongly enhanced by raising the holding...Influencing Factors of Reheating Shrinkage Rate of Glass Substrate on LTPS Process王伟来1,田英良1,2,WANG Wei1,LIU Yaru1,SUN Shibing1,Lü Feng1,CHEN Xinxin11. Faculty of Materials and Manufacturing, Beijing......