共搜索到15578条信息，每页显示10条信息，共1558页。用时：0小时0分0秒398毫秒
Study on Contact Fatigue Life and Failure Mechanism of Subquenched 42CrMo Steel SHAO Er-yu1,HE Bo-lin2,YU Ying-xia2 (1.Material Institute,Hean University of Science and Technolgy,Luoyang,China... properties and failure mechanism were studied. The amount of undissolved ferrite in the steel were 0%,3%,10%,15% and 20% in volume fraction, respectively. The experimental results show that the existence......
Ablation mechanism of TaC coating fabricated by chemical vapor deposition on carbon-carbon composites LI Guo-dong(李国栋)1, 2 , XIONG Xiang(熊 翔)1 , HUANG Ke-long(黄可龙)2 1. State Key Laboratory...; Abstract: Ablation characteristics and mechanism at high temperature for TaC coatings on carbon-carbon composites were investigated by ablation experiments with low power laser and oxyacetylene flame......
Adsorption Behaviors and Mechanism of Macroporous Phosphonic Acid Resin for Gadolinium 熊春华1,吴香梅2,姚彩萍1 (1.College of Food Science, Biotechnology and Environmental Engineering, Zhejiang Gongshang University, Hangzhou 310035, China;2.Department of Chemistry, Lishui University, Lishui 323000, China) Abstract:The adsorption behaviors and mechanism of a novel chelate resin, macroporous phosphonic......
Adsorption of Er(Ⅲ) and Its Mechanism on Diglycolamidic Acid Resin 熊春华1,沈秋仙1 (1.Department of Chemistry, Lishui Teachers College, Lishui 323000, China) Abstract:The adsorption behavior and mechanism of a novel chelate resin, diglycolamidic acid resin (DAAR) for Er(Ⅲ) were investigated. The optima adsorption condition of DAAR for Er(Ⅲ) is pH 6.20 in HAc-NaAc medium. The statically saturated......
ANI-DPA聚合物膜的合成及其表征 徐伟箭1,李思平2 (1.湖南大学化学化工学院,长沙,410082;2.湖南大学化学化工学院,长沙410082;3.湘潭大学化学学院,湘潭411105) 摘要:在较佳工艺条件下,用脉冲电位法合成了苯胺和二苯胺的聚合物膜,采用SEM观察了膜形貌,分别以红外光谱分析和循环伏安法研究了其电化学共聚合机理,采用电导率仪测定了其电导率.结果表明,用脉冲电位法合成的ANI-DPA聚合物膜具有较好的稳定性和较高的电导率. 关键词:合成; 聚合物膜; 共聚合机理; synthesis; polymer membrane; mechanism of co-polymerization; [全文内容正在添加中] ......
Coercivity Mechanism of Melt-spun Nd-Fe-B Bonded Magnet黄钢祥,徐庆镇,高惠民,余善富,华宏慈,王葛亚摘 要:<正> The microstructures of melt-spun Nd135-Fe81.74B4.76 ribbons have been investigated bymeans of X-ray diffraction,Mossbauerspectroscopy and HREM.Experimental resultsshow that optimal magnetic properties of the bond-ed magnet can be obtained by melt-spun alloys......
Formation mechanism of Ti5Si3 powder by mechanical alloyingPengchao Kang, Zhongda Yin, Yue Jiang, Mingwei Li Materials Science and Engineering School, Harbin Institute of Technology, Harbin 150001, China College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China摘 要:<正> The formation mechanism of stoichiometry Ti5Si3......
Mechanism of stibnite volatilization at high temperatureQIN Wen-qing(覃文庆), LUO Hong-lin(罗虹霖), LIU Wei(刘维), ZHENG Yong-xing(郑永兴), YANG Kang(杨康), HAN Jun-wei(韩俊伟) (School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China)Abstract:The volatilization of stibnite (Sb2S3) in nitrogen from 700 to 1000 °C was investigated by using thermogravimetric analysis......
Optimization and mechanism of gold-bearing sulfide flotationZhong-Mei Sun1,2,Chun-Bao Sun1,Ji-Zhen Wang3,Wan-Zhong Yin41. School of Civil and Environmental Engineering, University of Science and Technology Beijing3. School of Materials & Metallurgy, Northeastern University4. College of Zi Jin Mining, Fuzhou University摘 要:In order to overcome......
Study on reaction mechanism of low temperature preparation of nanocrystalline LaCoO3-λ YANG Qiuhua1,LI Ning1,SHEN Haiyun1 (1.Department of Chemistry,School of Science,Tianjin University,Tianjin... that nanocrystaUine LaCoO3-λwith a granula of 30-50 nm had a cubic perovskite structure.The reaction mechanism of low temperature preparation was suggested as fol-lows:the metal complex was first formed......
