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shielding is mainly concentrated on the effect of substituents. It can usually be ignored as far as four bonds are away from or directly through space [8]. Within three chemical bond distances...J. Cent. South Univ. Technol. (2011) 18: 323-330 DOI: 10.1007/s11771-011-0699-1 Simulation of 13C NMR chemical shifts of carbinol carbon atoms using quantitative structure-spectrum relationships......
Bond粉磨功指数研究与应用的进展吴建明北京矿冶研究总院 北京100044摘 要:介绍Bond功指数的产生,发展,应用和进一步研究中的一些主要工作,包括对Bond功指数概念中各个参数之间的关系之研究,Bond功指数与其他物理机械参数的关系研究,特殊测定方法的研究,简化测定方法的研究和计算机模拟方法的研究等.指出了各种测定Bond粉磨功指数的简化方法和模拟方法的优缺点,提出了其适用范围.关键词:Bond功指数;球磨;棒磨;操作功指数;测定;模拟;......
. (3) 确定了零压时金属Mo价电子数为,单键半径为0.128 04 nm. (4) 随着压力的升高,共价电子增加,近自由电子减少,晶体的共价性增加,金属性下降,且键长缩短,键价增大,键能降低. 参考文献: [1] Brown I D. The chemical bond in inorganic chemistry: the valence bond model[M]. New York...; 文献标志码:A 文章编号:1672-7207(2011)10-2996-06 Temperature and pressure dependent for valence bond structure molybdenum PENG......
. The results show that a close, uniform, firm and ultra thin layer, which is beneficial to the magnetic and chemical stability, has been formed by the cross-linked chemical bond Si-O-Si...Surface Modification of a-Fe Metal Particles by Chemical Surface CoatingQixiang WANG, Baozhen SONG and Hongzhong LIInstitute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China......
, slip stage, descent stage and residual stage when pull-out failure occurs. The bonding stress during the micro slip stage is primarily supplied by the chemical bond between the two. But chemical... J. Cent. South Univ. (2021) 28: 2193-2205 DOI: https://doi.org/10.1007/s11771-021-4762-2 Experimental study on bond behavior between BFRP bars and seawater sea-sand concrete SU Xun(苏迅)1, 2, YIN Shi......
基于Weibull分布的Bond冲击破碎粒度分布特征蔡改贫,郭进山,夏刘洋江西理工大学机电工程学院摘 要:为了对石灰石受冲击破碎后的颗粒粒度分布特征进行分析,采用Bond冲击破碎试验机对不同粒度的单个石灰石颗粒在不同摆锤冲击角度下进行冲击破碎试验.结果表明:Bond冲击破碎后石灰石颗粒粒度符合Weibull分...矿粒径的增加而增大.关键词:Bond冲击;Weibull分布;粒度特性;概率密度;......
ELECTRONIC STRUCTURE AND BOND CHARACTER OF COMPLEXES OF RARE EARTH CHLORIDES WITH CROWN ETHERS李振祥,周清廉,胡宁海,倪嘉缵,任镜清,黎乐民,赵井泉,徐光宪摘 要:<正> A series of lanthanide complexes LnCl3·L(Ln=La,Pr,Nd;L=15-C-5 or 18-C-6)have beensynthesized and their molecular configuration,electronic structure and bond character have been studied byXPS and quantum chemical......
Effect of CeO2 on Microstructure and Bond Strength of Fe-Ni-Cr Alloy Wang Zhiping1,Zhang Zhenyu1,Liang Bunü2 (1.State Key Laboratory of New Nonferrous Metal Materials, Lanzhou University... work, comparison on the microstructure of a Fe-Ni-Cr alloy with and without 0.4% CeO2 addition was made. The correlation between the microstructure and bond strength was studied. The addition of CeO2......
Mechanistic Investigation into the Role of Aluminum Diffusion in the Oxidation Behavior of Cryomilled NiCrAlY Bond CoatKaka MA1,Xiaochuan TANG2,Julie M SCHOENUNG11. Department of Chemical Engineering... temperature oxidation behavior of the bond coat layer is a critical factor that controls the failure mechanism of thermal barrier coatings(TBCs).Previous work reveald that TBCs with cryomilled NiCrAlY bond......
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