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Improving Thermal Stability of BaMgAl10O17:Eu Phosphor Dong Yan1,Cao Tong1,He Jinhua2,Jiang Jianqing1,Zhang Chao3,Liang Chao3 (1.Department of Material Science and Engineering, Southeast University... results indicate that the coating layer presents an observable improved effect on the enhancement of thermal stability. When baked at 600 ℃ for 1 h, the luminance of coated BAM keeps at 92% higher than......
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Thermal stability of nanocrystalline in surface layer of magnesium alloy AZ91D ZHANG Jin(张 津)1, 2, OU Xin-bing(欧信兵)2, 3 1. Institute of Advanced Material, University of Science and Technology...; Abstract: Isothermal and isochronal annealing was conducted to study the thermal stability of the nanocrystalline in the surface layer of Mg alloy AZ91D induced......
J. Cent. South Univ. (2019) 26: 768-778 DOI: https://doi.org/10.1007/s11771-019-4046-2 Sensitivity analysis of geomechanical parameters affecting a wellbore stability Abolfazl ABDOLLAHIPOUR1, Hamid... of Springer Nature 2019 Abstract: Wellbore stability analysis is a growing concern in oil industries. There are many parameters affecting the stability of a wellbore including geomechanical properties (e.g.......
First-principles calculations of lattice stability of technetium and rhenium TAO Hui-jin(陶辉锦)1, 2, 3, CHEN Wei-min(陈伟民)1, 2, ZHOU Wen(周 文)4, WANG He-nan(王赫男)1, 2 1. School of Materials... and experimental data. The lattice stability results prove that HCP phase is the most stable phase, which agrees well with those of PAW method in first-principles and CALPHAD method. Further analyses......
J. Cent. South Univ. (2020) 27: 1981-1991 DOI: https://doi.org/10.1007/s11771-020-4424-9 Stability analysis of cohesive soil embankment slope based on discrete element method XU Guang-ji(徐光霁)1... of the particle micro parameters on the macroscopic characteristics of cohesive soil and calibrate the micro parameters of DEM model on this basis. Embankment slope stability analysis was carried out......
Phase stability of Ta-W alloysXiaobo LI 1)and Ping ZHANG 2) 1) College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China 2) Key Laboratory of Materials Design... stability and thermodynamics in substitutional bcc-based Ta-W alloys.The basic principle and method of alloy thermodynamics which is described by the characteristic crystal model is introduced in detail.The......
J. Cent. South Univ. (2012) 19: 1543-1547 DOI: 10.1007/s11771-012-1174-3 Stability of motion state and bifurcation properties of planetary gear train LI Tong-jie(李同杰)1,2, ZHU Ru-peng(朱如鹏)1, BAO He... and nine unstable regions in the speed region when 1 000 r/mins<3 000 r/min. Key words: planetary gear train; nonlinear dynamical model; stability of motion state......
; First-principle investigation on stability of Co-doped spinel λ-Mn4-xCoxO8 HUANG Ke-long(黄可龙)1, CHEN Chun-an(陈春安)1, LIU Su-qin(刘素琴)1, LUO Qiong(罗 琼)1, LIU..., Zhuzhou 412007, China) Abstract: The mechanism of stability of Co-doped spinel λ-MnO2 that is referred to as spinel LixMn2O4 (x=0) was studied by using the first-principle......