共搜索到1945条信息,每页显示10条信息,共195页。用时:0小时0分0秒500毫秒
J. Cent. South Univ. Technol. (2010) 17: 1155-1162 DOI: 10.1007/s11771-010-0612-3 Microstructures and wear resistance of chromium coatings on P110 steel fabricated by pack cementation LIN Nai...-performance surface on P110 steel that can meet the requirements in oil/gas field environment, the chromium coatings were fabricated by pack cementation. The chromium coatings differed in with/without......
......
Oyster Cementation as Protective Covers for Exposed Marine Concrete吕建福Schoolof Civil Engineering,Harbin Institute of Technology摘 要:Cored concrete specimens... to splash zone has loose structure,exposed finer aggregate and concrete exposed to tidal zone covers by dense structure of oyster cementation and shell.Microstructures analysis further verified......
Cementation of Loose Sand Particles based on Bio-cement荣辉1,2,钱春香11. School of Materials Science and Engineering, Southeast University2. School of Materials Science and Engineering, Tianjin Chengjian... prepared, and then the compressive strength and the porosity of the sandstone cemented by microbial induced magnesium carbonate were tested to characterize the cementation effectiveness. In addition......
......
......
Study of decomposing carbonyl slag CHEN Ai-liang(陈爱良)1, SUN Pei-mei(孙培梅)2, ZHAO Zhong-wei(赵中伟)1, LI Hong-gui(李洪桂)1, CHEN Xing-yu(陈星宇)1 1. School of Metallurgical Science and Engineering...; Abstract: A new technology was put forward to deal with the carbonyl slag at low acidity and low oxygen pressure in the kettle. With the orthogonal......
J. Cent. South Univ. Technol. (2009) 16: 0588-0593 DOI: 10.1007/s11771-009-0098-z Microwave absorbing properties of high titanium slag ZHANG Li-bo(张利波), CHEN Guo(陈菓), PENG Jin-hui(彭金辉), CHEN... titanium slag were investigated by using microwave cavity perturbation technique. High titanium slag containing more than 90% TiO2 was prepared by carbothermal reduction of ilmenite. The temperature rise......
by cementation reaction with Ni in the alloy. The mineralogical characteristics of the matte in the process were analyzed by X-ray diffractometry, optical microscopy and scanning electron microscopy... words: Ni-Cu matte; selective leaching; Ni-Cu alloy; cementation ____________________________________________________________________________________________ 1 Introduction Although nickel-copper......
J. Cent. South Univ. (2016) 23: 1326-1331 DOI: 10.1007/s11771-016-3183-0 Reduction smelting on bismuth oxide residue in FeO-SiO 2-CaO ternary slag system ZHANG Du-chao(张杜超), ZHANG Xin-wang(张新望... in the FeO-SiO 2-CaO ternary slag system. The results show that all the recovery ratios of Bi, Ag, Cu and Pb increase with the increase of reductive coal proportion, reaction temperature and time......