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, LIU Chang-meng, WANG Hua-ming. Microstructure of TA2/TA15 graded structural material by laser additive manufacturing process[J]. Transactions of Nonferrous Metals Society of China, 2014, 24(9...; 文献标志码:A 梯度功能材料(Functionally graded material, FGM)是一种非均质类的复合材料,材料成分和微观结构呈现阶梯状或连续的变化[1].FGM已经在航天飞机,武器装备,切削刀具,生物医学移植等领域得到推广和应用[2-4].其中,在陶瓷刀具材料的设计和制备过程中引入FGM的概念,可为刀具材料热-力学性能的提高提供一种有效的工具......
and nanocomposite materials was developed for cylindrical tubes. Functionally graded materials (FGMs) are a class of composites in which the material properties are graded but continuous along...] in 1991. Due to their remarkable structural, mechanical, thermal and electrical properties, CNTs are considered one of the most attractive reinforcements for functionally graded nanocomposites. Carbon......
Structural evolution of Si-50%C powder during mechanical alloying and heat treatment TANG Wen-ming(汤文明), ZHENG Zhi-xiang(郑治祥), WU Yu-cheng(吴玉程), XU Guang-qing(徐光青), L? Jun(吕 珺), LIU Jun-wu(刘君武... powder is heat treated at 1 100 ℃ for 1 h, the grain size of β-SiC does not change, but the lattice ordering degree of β-SiC increases. Key words: SiC; mechanical alloying; structural evolution......
J. Cent. South Univ. Technol. (2009) 16: 0080-0084 DOI: 10.1007/s11771-009-0013-7 One-pot synthesis and structural characterization of urea-isobutyraldehyde-formaldehyde resin ZHANG Yi-fu(张一甫..., 1H-NMR and 13C-NMR results show that the lactam is formed by aminomethylation from urea, isobutyraldehyde, and formaldehyde. Key words: urea; isobutyraldehyde; formaldehyde; resin; synthesis; structural......
Properties of SiC material 3 Light-mass structural forms The SiC primary mirror was designed according to the following specifications: diameter of 256 mm with a central hole of 77 mm in diameter... Effects of light-mass structural forms on silicon carbide mirror HAN Jie-cai(韩杰才), HAN Yuan-yuan(韩媛媛), ZHANG Yu-min(张宇民), ZHANG Jian-han(张剑寒), YAO Wang(姚 旺), ZHOU Yu-feng(周玉锋) Center......
gradation applicable to a more broad range of functionally graded materials (FGMs) was presented. With the material model, analytical expressions of crack tip higher order stress fields in a series form...]. International Journal of Fracture, 2008, 153(1): 53-62. [11] ZHONG Zheng, CHENG Zhan-qi. Fracture analysis of a functionally graded strip with arbitrary distributed material properties [J]. International......
; A356 alloy; functionally graded material; cast-decant-cast process 1 Introduction Many engineering components require contradictory material properties, such as lightweight and wear resistance, wear... A, SURESH S. Functionally graded metals and metal–ceramic composites: Part 1, Processing [J]. International Material Review, 1995, 40(6): 239-265. [2] RAJAN T P D, PILLAI R M, PAI B C. Characterization......
Phase stability and structural distortion of NiO under high pressure ZHANG Wei-bing(张卫兵), HU Yu-lin(胡玉林), TANG Bi-yu(唐壁玉) Key Laboratory of Advanced Materials and Ryeological Properties of Ministry of Education, Department of Physics, Xiangtan University 411105, China Received 10 April 2006; accepted 25 April 2006 Abstract: The phase stability and structural distortion of NiO under high......
J. Cent. South Univ. (2017) 24: 2532-2541 DOI: https://doi.org/10.1007/s11771-017-3666-7 Structural reliability analysis using a hybrid HDMR-ANN method Bhaw Nath Jha, LI Hong-shuang(李洪双) Key... dimensional model representation (HDMR) combined with artificial neural network (ANN) is used to approximate implicit limit state functions in structural reliability analysis. HDMR facilitates the lower......
J. Cent. South Univ. (2012) 19: 1148-1154 DOI: 10.1007/s11771-012-1121-3 An improved adaptive response surface method for structural reliability analysis LIU Ji(刘霁)1, 2, LI Yun(李云)2 1. School...; structural reliability; uniform design; weighted regression 1 Introduction Structural reliability analysis is a logical extension of conventional deterministic analysis, in which the inherent......