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Effect of process parameters on density of magnesium alloy parts by low-pressure expendable pattern casting LI Ji-qiang(李继强), FAN Zi-tian(樊自田), DONG Xuan-pu(董选普) State Key Laboratory of Material... and density distribution. The results indicate that the pouring temperature with LP-EPC process is lower than it in gravity casting. The selected process parameters, such as vacuum, filling velocity......
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......
Density and viscosity of aqueous solution of K2CrO4/KOH mixed electrolytes GUO Ya-jie(郭雅杰)1, 2, XU Hong-bin(徐红彬)2, GUO Fen(郭 奋)1,ZHENG Shi-li(郑诗礼)2, ZHANG Yi(张 懿)2 1. Research Center... of hydrometallurgical processes. In the green hydrometallurgical process of chromite ore with sub-molten salt medium of KOH, the ternary system of KOH+K2CrO4+H2O is essential to process control and industrial......
Ti粉的高速压制成形及表征闫志巧1,陈峰1,蔡一湘1,崔亮1(1.广东省广州市广州有色金属研究所粉末冶金研究所)摘 要:以Ti粉为原料,高速压制内,外径分别为30和60 mm的圆环状及直径为20 mm的圆柱状两种试样,探讨冲击能量,装粉量等对压坯密度的影响,并寻求高速压制过程的合适表征方式.结果表明:对于内,外径分别为30和60 mm的圆环试样,当冲击能量为3.804 kJ时,可成形的压坯密度最大,为4.00 g/cm3,致密度为88.9%;对于直径为20 mm的圆柱试样,当冲击能量为1.217 kJ时,可成形......
and sedimentation. The suspensions have the lowest viscosity and the best stability at pH 9 with 0.2% PAA (mass fraction). The maximum density of green compacts is 66.6% of theoretical density (TD) with compacting and homogeneous green particles. An ultrahigh density sintered compact (>99.6% TD) could be obtained after pressureless sintering at 1 400 ℃ for 2 h. Key words: ZnO-Al2O3 mixture......
A novel approach to predict green density by high-velocity compaction based on the materials informatics methodKai-qi Zhang1,Hai-qing Yin1,2,3,Xue Jiang1,Xiu-qin Liu4,Fei He1,Zheng-hua Deng1,5,Dil... 7.5 g/cm3 for the Fe-based powders. The ability to rapidly and accurately predict the green density of compacts is important, especially as an alternative to costly and time-consuming materials design......
of impact energy and impact times on the green density, the maximal impact force and the withdraw force of specimen were investigated. The results indicate that the maximum of green density is 8.42 g/cm3 and its relative density is about 95% when the impact energy is 6 076 J. The green density of specimen fabricated by two impacts is better and the withdraw force is lower than that of specimen......
velocity,the green density,the sintered density,the bending strength and the tensile strength were discussed.The results show that with increasing impact velocity,the green density and the bending...Analysis of density and mechanical properties of high velocity compacted iron powderJianzhong WANG,Haiqing YIN and Xuanhui QU State Key Laboratory for Advanced Metals and Materials,School......
Luminescent properties of Tb3+ doped high density borogermanate scintillating glasses钱珊,黄立辉,赵士龙,徐时清College of Materials Science and Engineering,China Jiliang University摘 要:Tb3+-doped high density borogermanate glasses were prepared by melt-quenching method. Their physical and luminescent properties including differential thermal analysis(DTA), density......
Luminescent properties of Tb3+ doped high density borogermanate scintillating glasses钱珊,黄立辉,赵士龙,徐时清College of Materials Science and Engineering,China Jiliang University摘 要:Tb3+-doped high density borogermanate glasses were prepared by melt-quenching method. Their physical and luminescent properties including differential thermal analysis(DTA), density......