共搜索到11093条信息,每页显示10条信息,共1110页。用时:0小时0分0秒307毫秒
Determination of vanadyl sulfate ion-pair dissociation constant at 298.15 K by Fuoss methodShu-Di Zhang1,2,Pei-Hua Ma1,Yu-Chun Zhai1,Wei-Min Chen21. School of Materials and Metallurgy, Northeastern... battery electrolyte,the ion-pair is dominant.The ion-pair dissociation constant is one of the important thermodynamic data related to battery performance.The vanadyl sulfate conductivity in aqueous......
Research Institute for Nonferrous Metals, Beijing 100088, China) Abstract: The billets of AZ91, AZ92 and AZ93 magnesium alloys were synthesized by the spray-forming (SF) processing... for activation of nucleation sites in the component undercooling area. Key words: magnesium alloy; spray-forming; microstructure Mg-Al-Zn 系合金是目前应用最为广泛的镁合金之一,尤其是AZ91合金更是广受关注. Zn元素在Mg-Al合金中的作用一方面表现为自身的固溶强化......
ferrous sulfate on its recovery of magnetite. Ferrous sulfate solution was purified by the addition of Na OH solution to precipitate impurities, and magnetite was recovered from ferrous sulfate solution without and with purification pretreatment. Calcium hydroxide was added to the solution of ferrous sulfate as a precipitator. A mixed product of magnetite and gypsum was subsequently obtained by air......
......
Coating of magnesium powder by rapid expansion of supercritical solution method ZHANG Shu-hai(张树海) School of Chemical and Environmental Engineering, North University of China, Taiyuan 030051, China Received 10 April 2006; accepted 25 April 2006 Abstract: In order to solve the reserve stability problem of pyrotechnic explosives containing magnesium powder, a coating method named rapid......
Enhanced photoluminescence property of sulfate ions modified YAG:Ce3+ phosphor by co-precipitation method阙美丹1,阙文修1,周婷1,邵金友1,孔令兵21. Electronic Materials Research Laboratory,International Center.... School of Materials Science and Engineering,Nanyang Technological University摘 要:The sulfate ions modified YAG:Ce3+ phosphors were prepared by co-precipitation......
Long-term Behavior of Fiber Reinforced Concrete Exposed to Sulfate Solution Cycling in Drying-immersion耿永娟1,金祖权1,HOU Baorong2,ZHAO Tiejun1,GAO Song11. School of Civil Engineering, Qingdao... to 60 and 170 drying-immersion cycles of sulfate solution, were systematically investigated. The effects of plain concrete, plain concrete mixed with 4 and 8 kg/m3 modified PP fiber and high......
Enhanced photoluminescence property of sulfate ions modified YAG:Ce3+ phosphor by co-precipitation method阙美丹1,阙文修1,周婷1,邵金友1,孔令兵21. Electronic Materials Research Laboratory,International Center.... School of Materials Science and Engineering,Nanyang Technological University摘 要:The sulfate ions modified YAG:Ce3+ phosphors were prepared by co-precipitation......
stress of magnesium ion and sodium ion on the low-grade nickel sulfide ore oxidative leaching in simulated sulfuric acid solutions were investigated. This study was performed in two courses, including... that parts of magnesium-containing gangues and ferrous sulfide are preferentially dissolved into lixivium, and the leaching efficiencies of Ni and Cu decreased much related to the leached concentrations......
......