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0.0009 nm;此时对应Li与C原子之间的平均距离为dLi-C为0.2295 nm,接近石墨嵌锂化合物LiC6中Li-C键长(0.2331 nm). 图1 石墨烯表面单个Li原子的沉积行为 Fig.1 Deposition behavior of single Li atom on graphene 当石墨烯表面沉积2个Li原子,沉积构型以及△Eab,h,△h,dLi... Si-nan, et al. Calculation and prediction of lithium insertion properties and elastic properties for Sn-Li alloy based on first-principle[J]. The Chinese Journal of Nonferrous Metals, 2017, 27(2......
scientists in this period could only follow the law of historical development to establish a theory with a single-structure or a single-property. The exact reason is that the reductionism way of thinking... of metallic materials science. Since the 1970s, we have been engaged in establishing the systematic metallic materials science (SMMS) based on the systematology, which includes system sciences......
J. Cent. South Univ. (2021) 28: 816-833 DOI: https://doi.org/10.1007/s11771-021-4647-4 A three-dimensional matching localization algorithm based on helix triangular pyramid array ZHAO Jiu-bin(赵久彬)1..., this work established a three-dimensional axisymmetric sound field model based on normal waves, and designed a 4-element helix triangular pyramid array with vertical and horizontal sampling......
of the near-field points. Additionally, based on the peak frequencies of the far-field points, the frequencies 13 and 23 Hz were selected for analysis. The spatial distribution of a single frequency... amplitude reflected in the actual on-site measurement did not show a vibration enhancement zone at 15 m; this is mainly related to the dominant frequency of the vibration source. Based on the single......
developments and applications in magnetron sputtering[J]. Modern Instrument, 2005, 5: 1?5. [12] Ishiguro T, Kitazawa A, Mizutani N, Kato M. Single-crystal growth and crystal structure refinement of CuAlO2......
metal oxide nanostructure has been developed based on anodization. Under specific anodic conditions in electrolytes containing fluoride, highly ordered arrays of oxide nanotubes can grow on various... and simple fabrication. In earlier research work, most of TiO2 nanotubes have been manufactured by anodization in aqueous HF-based electrolytes, but they grew only up to a length of about 500 nm......
F, PETROV I, GREENE J E. Crystal growth and microstructure of polycrystalline Ti1-xAlxN alloy films deposited by ultra-high-vacuum dual-target magnetron sputtering [J]. Thin Solid Films, 1993, 235......
are nowadays widely used in aerospace, automobile, 3C areas and medicine[3-5]. Due to their hexagonal close-packed crystal structure, however, Mg alloys present limited workability at room......
of Mg, Ni and MnO2 in hydrogen atmosphere. The microstructures of the powder prepared at different milling time were analyzed by X-ray diffractometry(XRD), scanning electron microscopy(SEM) and high... time on the particle size and microstructure of Mg-3Ni-2MnO2 powders were studied. 2 Experimental The nanostructured Mg alloy was prepared by mixing three kinds of powder: Mg, Ni and MnO2......
Effects of precoating and calcination on microstructure of 3D silica fiber reinforced silicon nitride based composites QI Gong-jin(齐共金), ZHANG Chang-rui(张长瑞), HU Hai-feng(胡海峰) State Key...: Three-dimensional silica fiber reinforced silicon nitride based composites were fabricated by preceramic polymer infiltration and pyrolysis method using perhydropolysilazane as a precursor......