共搜索到11664条信息，每页显示10条信息，共1167页。用时：0小时0分0秒460毫秒
[4,17,18,21,27-33]. AlN-Al composites can be produced via various solid or liquid state based fabrication methods such as spark plasma sintering [27], pressureless [13], pressure [12] or vacuum [14... of the ceramic preforms were ~46%. Infiltration process was carried out under an Ar gas atmosphere at 1200 °C for 1 h without applying any external pressure. Heating rates applied was 5 °C/min up to 900 °C and 10......
J. Cent. South Univ. (2016) 23: 1924-1930 DOI: 10.1007/s11771-016-3248-0 Diesel oil infiltration in soils with selected antecedent water content and bulk density MA Yan-fei(马艳飞)1, 3, LI Yong-xia(李永霞... of soil texture, initial water content and bulk density on diesel oil infiltration in fine sand and silty clay loam materials were evaluated. Three physical and two empirical equations express diesel oil......
M1 and M2 were designed for three cycles with the measurement of pore water pressure. Specifically, pore water pressure sensors (P1-P9) were used to monitor the water infiltration inside the canal..., and the canal model under the cyclic action of WDFT had a more significant water infiltration. Additionally, the phenomenon of pore water pressure dissipation did not occur in the second and third wetting......
......
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... infiltration (ICVI), which are super-thin mat lay-up, 0?/90? weftless fabric lay-up, 0?/45? weftless fabric lay-up and 0?/45? twill fabric lay-up, were quantitatively evaluated by performing the ablation......
......
the heavy and low vapor pressure impurities at low level.As indium has low melting point and high boiling point,it is suitable for refining by vacuum distillation.First,saturation vapor pressure for major elements in crude indium was calculated by the Clausius–Clay Prang equation,which could approximately predict the temperature and pressure during vacuum distillation process.Second,the activity......
by WEI et al[16]. Operating conditions of ICVI process are as follows. Infiltration temperature is 1 273 K. Special flux of MTS, H2 and Ar is 1∶10∶10 and total pressure is 5 000 Pa. Initial... Comparative modeling of gas transport in isothermal chemical vapor infiltration process of C/SiC composites WEI Xi(魏 玺), CHENG Lai-fei(成来飞), ZHANG Li-tong(张立同), XU Yong-dong(徐永东), ZENG Qing......
Development of pressure control system in counter gravity casting for large thin-walled A357 aluminum alloy components LI Xin-lei(李新雷), HAO Qi-tang(郝启堂), JIE Wan-qi(介万奇), ZHOU Yu-chuan(周玉川...: Counter gravity casting equipments(CGCE) were widely used to produce large thin-walled A357 aluminum alloy components. To improve the pressure control precision of CGCE to get high quality castings......
