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to thermal decomposition of compounds [4–7]. Many scholars made several meaningful researches in vacuum decomposition of molybdenite concentrate. On the view of experiments, CHEN [8] investigated... of thermal decomposition process of molybdenum concentrate in vacuum and verified it by vacuum decomposition experiment. On the view of molecular dynamics simulation, structural and other properties of Mon(n......
at several current densities to cut-off voltage of 1.4 V after being heated between two isothermal metallic tables (at 500 ℃) for 1 min. 3 Results and discussion 3.1 Thermal decomposition of NH4VO3 X-ray diffraction pattern of the product from thermal decomposition of NH4VO3 at 450 ℃ for 4 h is shown in Fig.1. The product consists of several vanadium oxides. They are V6O13, V3O7, V2O5 and VO2(B......
二甲醚燃烧用催化剂BaO·MnO·6Al_2O_3的热分解动力学 许奕祥1,张绮旎1,余林1,孙明1,余倩1,凌伟军1 (1.广东工业大学轻工化工学院,广东,广州,510006) 摘要:采用反相微乳法制备和超临界干燥获得前驱体BaO·MnO·6Al_2O_3.利用TG-DTA曲线和XRD分析对前驱体的热分解过程进行研究,并用Coats-Redfem法和Kissinger法进一步研究前驱体的热分解动力学,获得六铝酸盐催化剂前驱体热分解的机制函数为:积分式G(α)=[-ln(1-α)]~4,微分式为:f(α)=(1/4)(1-α)[-ln(1-α)]~(-3),反应为随机成核和随后生长控制,计算出的活化能E_a=187.80 kJ·mol~(-1). 关键词:二甲醚; 热分解动力学; 六铝酸盐; 催化剂; dimethyl ether; thermal decomposition......
, the lower its thermal stability is. The decomposition of irregular M2C is easier than that of regular M2C. The addition of nitrogen and mischmetal increases the irregularity of M2C. The coarse...J. Cent. South Univ. (2017) 24: 782-788 DOI: 10.1007/s11771-017-3480-2 Precipitation and decomposition behaviors of carbides in AISI M2 high-speed steel with nitrogen and mischmetal LIU Bao-long(刘宝龙......
Controlled Synthesis of Core-Shell Nickel Microspheres with Solid Core and Porous Shell by Precipitation and Thermal Decomposition Method李涛1,2,MA Guohua3,CHEN Jian4,GONG Yong41. School of Mechanical...) and organic elemental analysis(OEA) indicate that the molar ratio of(C2O4)2-/Ni2+ is about 1.02, close to the theoretical value of 1.0. The results of the thermo-gravimetric and differential thermal......
; 文献标识码: A Thermal decomposition behavior of novel gas-generating agent used for two steps foaming process of aluminum ZHOU Xiang-yang, ZHANG Hua, LIU Xi-quan, LIU Hong-zhuan (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: The thermal decomposition behavior of a novel gas-generating agent (NGGA) used for two steps......
Decomposition of the mixed rare earth concentrate by microwave-assisted method黄宇坤,张廷安,刘江,豆志河,田俊行Key Laboratory of Ecological Metallurgy of Multi-Metal Intergrown Ores of Ministry of Education,School of Materials & Metallurgy,Northeastern University摘 要:A novel process was proposed to strengthen the decomposition of the mixed rare earth concentrate......
Decomposition of the mixed rare earth concentrate by microwave-assisted method黄宇坤,张廷安,刘江,豆志河,田俊行Key Laboratory of Ecological Metallurgy of Multi-Metal Intergrown Ores of Ministry of Education,School of Materials & Metallurgy,Northeastern University摘 要:A novel process was proposed to strengthen the decomposition of the mixed rare earth concentrate......
decomposition technique ZHU Zheng-wei(朱正为)1, 2, ZHOU Jian-jiang(周建江)1 1. College of Information Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 2. School...-resolution reconstruction approach of radar image using an adaptive-threshold singular value decomposition (SVD) technique was presented, and its performance was analyzed, compared and assessed detailedly......
Wavelet analysis of acoustic emission signals from thermal barrier coatings YANG Li(杨 丽), ZHOU Yi-chun(周益春) Key Laboratory for Advanced Materials and Rheological Properties of Ministry... to the analysis of acoustic emission signals collected during tensile test of the ZrO2-8% Y2O3 (YSZ) thermal barrier coatings (TBCs). The acoustic emission signals are de-noised using the Daubechies discrete......