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Bi. Occurrence and recycling of main elements in Panxi vanadium-titanium magnetite[J]. Conservation and Utilization of Mineral Resources, 2008(5): 38-41. [7] 刘 璇. 钒铬渣中变价元素价态分布规律及钒,铬在渣金间分配行为的研究[D]. 重庆... Xue-wen, WANG Ming-yu, FU Zi-bi, MENG Yu-qi, GAO Da-xiong, CHEN Bian-fang. Present status and prospects of vanadium and chromium separation in vanadium extraction from vanadium-chromium slag[J]. Iron......
] ZHAI Yun-bo, CHEN Hong-mei, XU Bi-bo, XIANG Bo-bin, CHEN Zhong, LI Cai-ting, ZENG Guang-ming. Influence of sewage sludge-based activated carbon and temperature on the liquefaction of sewage sludge: Yield......
J. Cent. South Univ. (2020) 27: 3544-3566 DOI: https://doi.org/10.1007/s11771-020-4509-5 Numerical simulation research on response characteristics of surrounding rock for deep super-large section chamber under dynamic and static combined loading condition FAN De-yuan(范德源)1, LIU Xue-sheng(刘学生)1, 2,......
collected from the Qinghai Geological Survey Institute. We obtained the concentrations of 15 geochemical elements at each sampling point: Au, Sn, Ag, As, Sb, Bi, Co, Cu, La, Pb, Zn, W, Mo, Nb and Cd......
melting of nano-TiB2 decorated AlSi10Mg alloy with high fracture strength and ductility[J]. Acta Materialia, 2017, 129: 183-193. [19] ZHANG Bi, LI Yong-tao, BAI Qian. Defect formation mechanisms...-(12-20)Si Bi-material fabricated by selective laser melting[J]. Materials (Basel), 2019, 12(13). [55] ZHOU Yan, WEN Shi-feng, WANG Chong, et al. Effect of TiC content on the Al-15Si alloy processed......
种纳米颗粒并不能明显增加界面层金属间化合物的厚度,3种元素可以熔解在界面层金属间化合物中;Al,P,Cu,Zn,Ge,Ag,In,Sb和Au可以显著提高界面层的厚度,在界面 层中没有发现Al,P,Ge,In和Sb等合金元素.Co,Ni和Pt 3种纳米颗粒相对Cu,Sb,In,Bi,Ge,Al和Zn等纳米颗粒添加到Sn3Ag焊点可以减小界面断裂的发生概率.纳米Ag颗粒添加到SnZn钎料中对......
, REN Y P, QIN G W, HAO S M. Partial phase relationships of Mg-Zn-Ce system at 350 ℃[J]. Transactions of Nonferrous Metals Society of China, 2009, 19(3): 681-685. [60] JIANG M, ZHANG S, BI Y, LI H, REN......
Bi,Pb等形成高熔点,低密度的化合物,这些化合物可以在扒渣过程中清除,起到了净化合金的作用,还有部分Ca原子与Cu元素形成Cu5Ca粒子,弥散分布(见图4),只有0.0966%(质量分数)的Ca原子固溶于基体中,减轻了固溶元素引起的晶格畸变对电子的散射[7],虽然铜合金中固溶Ca的含量低,但其加工硬化的效果好,合金强度也略有升高. 1.2 时效强化高强高导铜合金 复合强化的机理可根据......
较低和空气稳定性的问题,导致效率仅0.2%左右.无铅钙钛矿的研究中还包括二元金属卤化钙钛矿(例如MATl0.5Bi0.5I3[69],MASn1-xGexI3[70]),三元无毒金属卤化物钙钛矿(例如A3M2X9[38],M为Bi,Sb)等结构,但它们的电池效率远不如铅,锡基钙钛矿太阳能电池.近日,ZHENG等[71]提出了一种物理降铅的思路,他们通过仿真计算将钙钛矿层的厚度缩减2/3,加入空间光......