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STRUCTURE IMPROVEMENT AND TEMPERATURE FIELD SIMULATION OF PREPARING NANOPOWDER BY EVAPORATION-CONDENSATION METHOD J.S.Bao1,T.G.Liu1,Y.Yin1,Z.Y.Yang1 (1.School of Mechanical and Electrical... the evaporation-condensation method to prepare carbon-coated nanopowder, has been developed by the authors. Numerical simulation of the temperaturc field is done by the ANSYS software, and temperature......
Rare earth permanent magnets Sm2(Co,Fe,Cu,Zr)17 for high temperature applications WANG Jingdong1,PENG Long2,ZHANG Ming1,XU Guangliang3,YANG Qiuhui2,ZHANG Huaiwu2 (1.Southwest Institute of Applied... content were found to have higher remanence Br and maximum energy product (BH)max at room temperature. Br and (BH)max reached maximum of 0.96 T and 176.7 kJ/m3, respectively at room temperature when......
Improvement of machining quality of copper-plated roll mold by controlling temperature variation Tae-Jin JE 1, Eun-Chae JEON 1, Sang-Cheon PARK 1, Doo-Sun CHOI 1, Kyung-Hyun WHANG 1, Myung-Chang... machining large roll mold whose machined length was 1 200 mm. The temperature of machining system was elevated during machining roll mold, and this elevation induced thermal expansion of the system......
J. Cent. South Univ. Technol. (2008) 15(s1): 135-139 DOI: 10.1007/s11771-008-332-0 Experimental evaluation on high temperature rheological properties of various fiber modified asphalt binders...: High temperature rheological properties of fiber modified asphalt binders and impact of the type and content on such properties were studied. Three types of fiber, including polyester (PET......
J. Cent. South Univ. Technol. (2008) 15(s1): 043-046 DOI: 10.1007/s11771-008-311-5 Constitutive model depending upon temperature and strain rate of carbon constructional quality steels YANG Liu... quality steels were regarded as a kind of elastic-viscoplastic materials under high temperature and the elastic-viscoplastic constitutive models were summarized. A series of tension experiments under......
Estimating extreme temperature differences in steel box girder using long-term measurement dataDING You-liang(丁幼亮), WANG Gao-xin(王高新) (Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education (Southeast University), Nanjing 210096, China)Abstract:The extreme temperature differences in flat steel box girder of a cable-stayed bridge were studied. Firstly, by using......
Numerical simulation of temperature field in plasma-arc flexible forming of laminated-composite metal sheets SONG Wen-qing(宋文庆)1, XU Wen-ji(徐文骥)1, WANG Xu-yue(王续跃)1, MENG Jian-bing(孟... without mould and external force. Considering that the controllable temperature field is the key during the forming process, a three-layer FEM model, based on the characteristics along LCMS thickness......
J. Cent. South Univ. (2018) 25: 1701-1707 DOI: https://doi.org/10.1007/s11771-018-3861-1 Breakdown mechanism of CF4 and N2 binary gas in refrigeration temperature range LI Wei-guo(李卫国), HOU Meng-xi... Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: The mechanism of gas discharge in refrigeration temperature range is still not clear. N2, CF4, 20% CF4+N2 and 50%CF4+50%N2......
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Microstructural evolution of NiFe2O4-10NiO powder prepared by high temperature solid state reaction ZHANG Lei(张 雷), ZHOU Ke-chao(周科朝), LI Zhi-you(李志友), YANG Wen-jie(杨文杰) State Key Laboratory... was prepared by high temperature solid state reaction. The microstructural evolution from the raw materials NiO and Fe2O3 to the NiFe2O4-10NiO powder was studied by SEM. The results show that the domain......