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Size and shape effects on Curie temperature of ferromagnetic nanoparticles CAO Ling-fei(曹玲飞)1, XIE Dan(谢 丹)2, GUO Ming-xing(郭明星)3, H.S. Park1, T. Fujita1 1. School of Engineering, University...; Abstract: A simplified model was developed to describe the Curie temperature suppression of ferromagnetic nanoparticles. Based......
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High temperature oxidation resistance of plasma sprayed NiCrAl+(ZrO2+Y2O3) gradated coating on stainless steel surface CHEN Fei(陈 飞)1, 2, ZHOU Hai(周 海)1, L? Tao(吕 涛)1 1... by the plasma spraying technique. The phase structure and morphology of the gradated coating were analyzed by means of X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The high temperature......
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MICROSCOPIC ANALYSIS OF POLYCRYSTALLINE MATERIAL AT HIGH TEMPERATURE Y.Kawano1,R.Kawakami1,S.Imatani1 (1.Kyoto University, Sakyo-Ku, Kyoto 606-8501, Japan) Abstract:The microscopic analyses of polycrystalline material at high temperature were carried out. The crystal plasticity model proposed by Asaro and Needleman was applied to a polycrystal model in the finite element simulation......
High Temperature Gaseous Rare-Earth Permeation of Polyoxotungstates:An New Effective Method for the Preparation of Tungsten Bronzes 郭元茹1,韦永德1,李中华1,周百斌1 (1.Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China) Abstract:New polyoxometalate α-K12H3[Y(BW11O39)2]·25H2O was synthesized and treated by high temperature gaseous rare earth permeation to prepare tungsten......
Mechanism of effect of rare earth oxides on high temperature corrosion resistance of weld metal LI Zhi-yong(李志勇)1, WANG Bao(王 宝)1 , ZHANG Han-qian(张汉谦)2 1. College of Materials Science... Abstract: Through the addition of rare earth oxides into the coating of electrodes, the high temperature oxidation and sulphidation resistance of weld metal were studied. The transfer mechanism......
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... under high strain rates ranging from 500 to 3 300 s-1 and at constant temperature in the range of 20-1 100 ℃ by means of a split Hopkinson bar. KOZLOWSKI and ANAND[3] proposed one- dimensional......
J. Cent. South Univ. Technol. (2008) 15(s1): 206-209 DOI: 10.1007/s11771-008-347-6 Creep testing and viscous behavior research on carbon constructional quality steel under high temperature YU... constructional quality steels at a certain stress level and different temperatures, and their creep curves at high temperature were obtained based on analyzing the testing data. Taking 45 steel......
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