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THE COMPOSITION AND THE CRYSTAL STRUCTURE OF CALCIUM SILICO-FLUORIDE PHASE A杨淑珍,叶瑞伦摘 要:<正> In this paper,the composition formula of calcium silico-fluoride phase A is determined:19 CaO·TSiO2·2CaF2.The phase A is proved to be the primitive lattice of the orthorhombic system.The cellparameters a=12.29,b=7.09,c=56,9,α=β=γ=90°.D2h13--Pnmm or C27--Pnm2......
贵, 等. 粉煤灰组成结构及其对碱溶预脱硅性能的影响[J]. 中南大学学报(自然科学版), 2018, 49(7): 1590-1597. LIAN Xuan, PENG Zhihong, QI Tiangui, et al. Composition and structure of coal fly ash and its effect on pre-desilication in alkali......
Effects of Phase Composition on Microstructure and Mechanical Properties of Lu2O3-doped Porous Silicon Nitride CeramicsQuan Li and Xiaowei Yin National Key Laboratory of Thermostructure Composite... composition were designed through the change of the content of SiO2 which was formed by the oxidation at 800℃ in air.Porous Si3N4 with different phase compositions was obtained after sintering at 1800......
Composition and phase structure dependence of mechanical and magnetic properties for AlCoCuFeNi_x high entropy alloysCong Liu,Wenyi Peng,C.S.Jiang,Hongmin Guo,Jun Tao,Xiaohua Deng,Zhaoxia Chen摘 要:In this study, the effects of composition and phase constitution on the mechanical properties and magnetic performance of AlCoCuFeNix(x = 0.5, 0.8, 1.0, 1.5......
Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, P. R. China) 摘要:Microstructures and phase composition of the ceramic coatings formed on pure aluminum by heteropolar pulsed... deposited for different time show that these coatings consist mainly of α-Al2 O3, γ-Al2 O3 , θ-Al2 O3 and a little amorphous phase, and phase composition of compact and porous ceramic coatings don'' t have......
of Ti-6Al-4V alloy with varied hydrogenation contents 图6 不同置氢量时烧结Ti-6Al-4V合金的相组成及分布 Fig. 6 Phase composition and distribution of sintering Ti-6Al-4V alloys with varied hydrogenation contents 表6 不同置氢量时烧结Ti-6Al-4V合金的相组成及含量 Table 6 Phase composition and volume contents of sintering Ti-6Al-4V alloys with varied hydrogenation contents 4) 随着置氢量的提高,斜方结构马氏体α"由初始含量0.68%逐步提高到5%左右,继续增加置氢量不再......
Microstructure and phase composition of hypoeutectic Te–Bi alloy as evaporation source for photoelectric cathodeBao-guang Wang1,Wen-hui Yang1,Hong-ye Gao2,Wen-huai Tian11. School of Materials Science... microstructure,crystal structure,chemical composition,and crystallographic orientation of each phase in the as-prepared alloy were investigated by optical microscopy,scanning electron microscopy,X-ray......
Effect of Pb Content on Phase Composition and Property of Bi-Pb-Sr-Ca-Cu-O System SuperconductorsRen Hongtao Xiao Ling Wang Xiaoping Wang Ruikun Zhao Bolang Sun Lihong General Research Institute... of the high-Tc phase(Tc110K).We prepared a series of samples with nominal composition of Bi2-xPbxSr2Ca2Cu3Oy(0.1≤x≤2).The zero resistancetransition temperature Tc of 106K and the critical transport current......
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