共搜索到146条信息,每页显示10条信息,共15页。用时:0小时0分0秒796毫秒
Thermal and radiative characteristics of oxyfluoride glass singly doped with lanthanide ionsBarbara KLIMESZ1,Grazyna DOMINIAK-DZIK2,Witold RYBA-ROMANOWSKI21. Department of Physics, Opole University of Technology2. Institute of Low Temperature and Structure Research, Polish Academy of Sciences摘 要:Rare earths-doped oxyfluoride glasses based on germanium......
transmittance and crystallization behavior of the germanium glass was investigated. The results show that the infrared spectra contains a single band at approximately 3 338 /cm...由羟基脱水能力最强,对与高配位锗成键的羟基脱水能力较弱. 3) 玻璃原料经CCl4浸泡处理后,残留在玻璃中的氯离子能够起成核剂的作用,降低玻璃的析晶温度,提高晶体的生长速率,同时改变晶粒之间的连接方式,使得玻璃中晶粒由孤岛状变成板块状. REFERENCES [1] DENNIS L M, LAUBENGAYER A W. Germanium XVII: Fused germanium......
......
="ChDivSummary" name="ChDivSummary">Germanium(Ge), a waste residue leaching from zinc(Zn) smelting process, has potential cementitious properties and could be recycled as a cement supplement activated......
hydrometallurgy; precipitating vitriol supernatant; cementation; Fe powder 1 Introduction The metallurgy of germanium (Ge) has profound impact on modern semiconductor technology. Ge is widely distributed in nature... and Cu are 4.88% and 56.75%, respectively. This kind of high value-added Ge-rich Cu concentrate can be used for preparation of germanium tetrachloride by the chlorination distillation process. Table 5......
Trans. Nonferrous Met. Soc. China 26(2016) 775-782 Effects of germanium additions on microstructures and properties of Al-Si filler metals for brazing aluminum Zhi-wei NIU, Ji-hua HUANG, Shu-hai CHEN.... Researches have shown that Al-Si-Ge alloys with low concentrations of silicon and germanium have fine and densely-distributed precipitates of GeSi solid solution compared with the Al-Ge alloys [17......
processes for gallium and germanium [J]. Miner Process Extr Met Review, 1991, 7(3-4): 235-258. [7]Bautista R G. Gallium metal recovery [J]. Journal of Metals, 1989, 41(6): 30-31. [8]Hoffmann J E. Advances in the extractive metallurgy of selected rare and precious metals [J]. JOM, 1991, 48(4): 18-23. [9]Olsen T M, Voelker D E, Smith R A. Gallium and germanium extraction from the Apex mine ore......
, 26(4): 2877-2884. [11] FINK C G, DOKRAS V M. Electrodeposition and electrowinning of germanium[J]. Journal of the Electrochemical Society, 1949, 95(2): 80-97. [12] MATTEI R C D, FEIGELSON R S. Growth rate limitations in electrochemical crystallization[J]. Journal of Crystal Growth, 1978, 44(2): 115-120. [13] SAITOU M, SAKAE K, OSHIKAWA W. Evaluation of crystalline germanium thin films......
. [10] 黄和明, 赵立奎. 高硅含锗物料中锗的提取工艺探讨[J]. 江苏冶金, 2002, 30(2): 57?58.HUANG He-ming, ZHAO Li-kui. Study on extraction technology of germanium in high silicon materail containing germanium[J]. Jiangsu......
and tin can be separated without washing the loaded organic phase. References [1] IZATT N E, DALE J B, IZATT S R, BRUENING R L. Extraction and recovery of indium and germanium from primary and secondary..., 2002, 43(12): 3195-3198. [9] ZHOU Tai-li, ZHONG Xiang, ZHENG Long-gao. Recovering In, Ge and Ga from zinc residues [J]. JOM, 1989, 41(6): 36-40. [10] GUO Xue-yi. Recovery of germanium and indium......