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• Effect of Substrate Characteristics on Interdiffusion Coefficients of Ni and Al Atoms in β-NiAl Phase of Aluminide Coatings

  来源： 《JOURNAL OF MATERIALS SCIENCE TECHNOLOG2004年第2期》——Hua WEI, Xiaofeng SUN, Qi ZHENG, Guichen HOU, Hengrong GUAN and Zhuangqi HUInstitute of Metal Research, The Chinese Academy of Sciences, Shenyang , China

  of composition of β-NiAI phase. The β-NiAI phase is formed by pack cementation on surface of superalloy. Results of the calculation show that interdiffusion coefficients in β-NiAI phase strongly depend......

• C/C复合材料表面SiC-MoSi₂/ZrO₂-MoSi₂抗氧化涂层

  来源： 《中国有色金属学报(英文版)2013年第7期》——付前刚 张佳平 张正中 李贺军 孙 粲

  Abstract: To improve the oxidation resistance of carbon/carbon (C/C) composites in air at high temperatures, a SiC- MoSi2/ZrO2-MoSi2 coating was prepared on the surface of C/C composites by pack cementation... method of pack cementation and slurry coating. The phase compositions and microstructures of the as-prepared SiC- MoSi2/ZrO2-MoSi2 multilayer coating were characterized. Meanwhile, the anti-oxidation......

• 塔河地区西南缘东河砂岩的成岩作用与孔隙演化

  来源： 《中南大学学报(自然科学版)2006年第3期》——郭建华 朱锐 周小康

   ......

• 钯(Ⅱ)氯配离子在一些化学反应中的两种反应现象与机理

  来源： 《中国有色金属学报2005年第3期》——陈景

  , for example, Na2S deposition, Cu cementation, solvent extraction and ion exchange were observed, which lies on the ways of reactant blending and the HCl concentration. Those different phenomena suggest...Pd和Cu浓度的变化及置换率列于表3, 不同盐酸浓度测定的置换动力学曲线如图1所示. 表3   5.0mol/L HCl中Cu置换Pd(Ⅱ)的实验结果 Table 3   Results of Cu cementation of Pd(Ⅱ) in 5.0mol/L HCl solutions     图1  不同酸度下置换速率与时间的关......

• Mechanical behaviors and energy absorption properties of Y/Cr and Ce/Cr coated open-cell nickel-based alloy foams

  来源： 《Rare Metals2018年第8期》——Zhi-Li Hu Qiu Pang Guo-Qiang Ji Gao-Hui Wu

  cementation method were prepared on the surface of open-cell nickel-based alloy foam.The morphologies and microstructures of Y-and Ce-modified Cr coatings with various Y and Ce contents were investigated......

• Cemented backfilling performance of yellow phosphorus slag

  来源： 《International Journal of Minerals Metallurgy and Materials2010年第1期》——Jia-sheng Chen ,),Bin Zhao ),Xin-min Wang ),Qin-li Zhang ),and Li Wang ) ) School of Resources and Safety Engineering,Central South University,Changsha ,China ) Tongling Chemical Group,Tongling ,China ) College of Safety Science and Engineering,Liaoning Technical University,Fuxin ,China

  ,and cementation mechanisms,were carried out to make good use of yellow phosphorus slag as well as tackle with environment problems,safety problems,geological hazards,and high-cost issues during mining in Kaiyang......

• Attack of Limestone Cement-based Material Exposed to Magnesium Sulfate Solution at Low Temperature

  来源： 《Journal Of Wuhan University Of Technology Materials Science Edition2014年第3期》——张风臣 WU Shengxing FANG Yonghao ZHOU Jikai LI Zhonghua

  progressive damage layer by layer, and every layer probably suffers four stages, which are property strengthening stage, initial degradation stage, thaumasite formation stage and cementation loss......

• Solidification/Stabilization of Zinc-lead Tailings by Alkali Activated Slag Cement

  来源： 《Journal Of Wuhan University Of Technology Materials Science Edition2015年第1期》——潘志华 ZHANG Jun LIU Weiqing

  flowability. SEM observation on the microstructure of the hardened tailings-AASC mixture pastes showed obvious cementation effect. MIP measurements also showed that the total porosity of the hardened......

• Si-Al-Y Co-deposition Coatings Prepared on Ti-Al Alloy for Enhanced High Temperature Oxidation Resistance

  来源： 《Journal Of Wuhan University Of Technology Materials Science Edition2018年第4期》——李涌泉 XIE Faqin LI Xuan

  -Y co-deposition coatings were prepared on Ti-Al alloy by pack cementation processes at 1 050 ℃ for 4 h with different halide activators in the packs for enhancing the high temperature oxidation......

• A new extraction process of carbonaceous refractory gold concentrate

  来源： 《中国有色金属学报(英文版)2005年第5期》——孟宇群

  alkaline leaching(IAL), thiosulfate leaching and cementation by zinc powder. The experimental results show that the grinding-leaching and intensified alkaline leaching process result in the selective..., the gold leaching rate by thiosulfate leaching for 24h is increased to 91.7% from 0-3.2% by ultra-fine grinding without the pretreatment. The recovery of gold by zinc cementation gets to 99.6%. Due......