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PREPARATION OF PEROVISKITE-TYPE La1_xSrxMnO3 AT LOW TEMPERATURE L.J.Zhang1,Y.T.Gu1,Y.Wang2,Z.B.Shao1 (1.Department of Chemistry, Northeastern University, S henyang 110004, China;2.Shenyang College of Education, Shenyang 110015, China) Abstract:Peroviskite-type La1_xSrxMnO3 (0≤x≤0.3) was prepared through the solgel process at low temperature (1100℃). The ethylene glycol and citric acid were......
Science and Engineering, Central South University, Changsha 410083, China) Abstract: The thermodynamic analysis of Bi2S3-ZnO-Na2CO3 low temperature molten salt system was carried out. Based on calculating reactions entropy () of this low temperature molten salt system at 700-1 500 K, the relationship between and reaction temperature (T) within this temperature range was obtained. The results......
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Evaluation of the Potential of the Ternary Aluminides in Nb-Ti-Al system for Hiyh Temperature Application陈国良,孙祖庆,谢锡善,姚可夫,任允蓉,杨王玥摘 要:<正> Being aimed... and the density difference between the intermetallics. The oxidation resistance at the temperature of 900-1200℃ of the compound NbTiAl3 is relatively low but still acceptable. However, by adjusting......
Low temperature thermoluminescence behaviour of Y2O3 nanoparticlesS.Delice1,M.Isik2,N.M.Gasanly3,41. Department of Physics, Hitit University2. Department of Electrical and Electronics Engineering... nanoparticles were investigated using low temperature thermoluminescence (TL) experiments. TL glow curve recorded at constant heating rate of 0.4 K/s exhibits seven peaks around 19, 62, 91,115,162,196......
Low temperature thermoluminescence behaviour of Y2O3 nanoparticlesS.Delice1,M.Isik2,N.M.Gasanly3,41. Department of Physics, Hitit University2. Department of Electrical and Electronics Engineering... nanoparticles were investigated using low temperature thermoluminescence (TL) experiments. TL glow curve recorded at constant heating rate of 0.4 K/s exhibits seven peaks around 19, 62, 91,115,162,196......
. Insulation property of CF4 and CF4/N2 in refrigeration temperature range is studied through self-designed low-temperature test system. The result shows when the density of hybrid gas is invariable...] LIU Fu-hao, LI Wei-guo, HOU Meng-xi. Design and analysis of experimental system for gas insulation characteristics at ambient and low temperature [J]. Superconductivity, 2015, 43(10): 45-48......
at room temperature. High-strength concrete were made from typeⅠPortland cement, natural sea sand, and crushed granitic gravel. Owing to the low W/C ratio adopted, the superplasticizer was used to increase... system. Fig.4 Location and numbering of thermocouples in specimen 3.2 Testing procedure For each set of tests at a given temperature, three specimens from the same batch were also tested at room......
of the pipeline system [2]. As the fluid flows in pipe, heat is constantly transferred to the surroundings and temperatures of the fluid and enthalpy value are changed. The temperature drop calculation... significantly temperature drop computation, and is dependent on pipeline inclination. For declined pipes, the liquid holdup is relatively low and temperature drop of gas-liquid mixed fluid increases, while......
Plasma-nitriding of tantalum at relatively low temperatureZHANG Deyuan;LIN Qin;ZHAO Haomin;FEI Qinyong;GENG Man National R & D Center for Surface Engineering of China, Shenzhen 518029, China... was employed to explore the effectsof process parameters of plasma nitriding of tantalum such as total pressure, temperature and original hydrogen molar frac-tion on the hardness, roughness and structure......
