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A STUDY OF TEMPERATURE-DEPENDENT VALENCE BOND STRUCTURE OF TITANIUM H.J. Tao1,F.X. Yu1,H.J. Peng1,Y.Z. Nie1,X.B. Li1,Y.Q. Xie1 (1.College of Materials Science and Engineering, Central South University, Changsha 410083, China) Abstract:On the basis of energy and shape method for the determination of the valence bond (VB) structures of crystal, the valence bond structure of titanium......
and thermal-hydraulic bond graph based on the conservation of mass and energy were introduced. Subsequently, the connection rule for the bond graph elements and the method to construct the complete...Thermal-hydraulic modeling and analysis ofspool valve with sloping U-shape notch by bond graphLOU Lei(娄磊)1, WU Wan-rong(吴万荣)1, WANG Zhao-qiang(王兆强)2, LIANG Xiang-jing(梁向京)1(1.College of Mechanical......
models on Van der Waals force was analyzed using dipole moment and molecular radius. The effect of various combination models on chemical bond force was analyzed using total energy, orbital population and orbital energy. All calculation results indicated that the bridge OH group is easier to bond, and the favorable bonding orientation is located at the bridge OH group orientation, and the obverse......
-principles calculations; stability; cohesive energy; covalent bond 1 Introduction In recent years, lithium ion batteries have grown rapidly as new portable power sources. Carbon materials...J. Cent. South Univ. (2012) 19: 1796-1801 DOI: 10.1007/s11771-012-1210-3 First-principles investigation of cohesive energy and electronic structure in vanadium phosphides YANG Zhen-hua(杨振华)1......
and molecular radius, and that on chemical bond force is analyzed using total energy, orbital population and orbital energy. Key words: gibbsite; combination; ab initio; DFT; chemical bond force; Van der... gradient of 0.42kJ/mol or the maximum cycles of 1800. Van der Waals force consists of action of inter moleculae. Although the force is quite infirm and the bond energy is very low, the physical......
stability and the pyrolysis mechanism of PNNPs were evaluated by the calculated bond dissociation energy (BDE). The comparison of BDE suggests that rupturing the C-C bond is the trigger for thermolysis of PNNPs. The computed BDE for cleavage of C-C bond (88.5 kJ/mol) further demonstrates that only the hexa-nitrotriprismane can be considered to be the target of HEDMs. Key words: high energy density......
碎产品微裂纹的影响,测定不同粉碎方式在不同目标粒度的情况下矿石的Bond球磨功指数,研究不同粉碎方式对粉碎产品Bond球磨功指数的影响.研究结果表明:高压辊磨产品较传统破碎产品微裂纹更多,在0.9~3.2 mm粒级时,高压辊磨产品表面的微裂纹十分明显；高压辊磨产品较传统破碎产品的Bond球磨功指数低,随着目标粒度的减小,高压辊磨产品较传统破碎产品的Bond球磨功指数降低的幅度在逐渐减小；与传统碎磨产品相比,高压辊磨产品在磨矿细度(小于0.074 mm含量)小于60%时的节能效果更明显. 关键词:高压辊磨机；钼铜矿；微裂纹；Bond球磨功指数 中图分类号:TD 952 文献标志码:A 文章编......
; preconditioning; magnetite percent; energy consumption Cite this article as: Hossein INANLOO ARABI SHAD, F SERESHKI, M ATAEI, M KARAMOOZIAN. Effect of magnetite percent on Bond work index and preconditioning... in energy consumption and an increase of throughput because of a reduction in fragment strength. Some indirect techniques such as P-wave and S-wave velocity measurements, Bond work index tests and drop......
资源与土木工程学院,辽宁 沈阳,110004) 摘要:对弓长岭磁铁矿石进行高压辊磨和颚式破碎,分析不同粉碎工艺对粉碎产品粒度特性的影响,测定不同粉碎方式在不同目标粒度下的 Bond 球磨功指数,研究颚式破碎和不同的高压辊磨机辊面压力对Bond球磨功指数的影响.研究结果表明:高压辊磨产品比颚式破碎产品细粒级质量分数高,高压辊磨辊面压力4.5 N/mm2和5.5 N/mm2产品的粒度分布更加均匀；在磨矿细度小于0.074 mm的质量分数为65%,高压辊磨产品在辊面压力为2.5,3.5,4.5,5.5和6.5 N/mm2下的Bond球磨功指数比颚式破碎产品分别降低11.36%,21.38%,15.62%,22.59%和27.49%,在磨矿细度小于0.074 mm的质量分数为40%,高压辊磨产品在辊面压力为2.5,3.5,4.5,5.5和6.5 N/mm2下的Bond球磨功指数比颚式破碎产品分别......
Effects of nano-AlN on phase transformation of low temperature vitrified bond during sintering process SHANG Yong(尚 勇)1, HOU Yong-gai(侯永改)1,2, QIAO Gui-ying(乔桂英)3, ZOU Wen-jun(邹文俊)2...; Abstract: The effects of nano-AlN and sintering temperature on bending strength and wear resistance of low temperature vitrified bond for diamond grinding tools were......
