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and alcohol. After drying, the mixed powder was calcined in an alumina crucible at 950 °C for 5 h. These calcined powders were ball-milled again for 12 h, then dried and pressed into disks of 12 mm... of the sintered ceramics were examined using X-ray powder diffraction analysis with a Cu Kα radiation (Philips X-Pert ProDiffractometer, Almelo, The Netherlands) at room temperature. The microstructure......
Science and Engineering, Central South University, Changsha 410083, China; 2. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China; 3. Key Laboratory..., LIU Y, LI H, ZHOU C, XU G. Constitutive relationship for high temperature deformation of powder metallurgy Ti-47Al- 2Cr-2Nb-0.2W alloy [J]. Materials Design, 2012, 37: 40-47. [13] McQWEEN H J......
, 2012, 31(4): 368-371. [2] LI Zai-yuan, ZHAI Yu-chun. Preparation of Mo60Cu40 composite nano-powder by hydrogen reaction[J]. Rare Metal Materials and Engineering, 2010, 39(1): 6-9. [3] SUN Ao-kui, WANG De..., GONG Yan-fei, SONG Peng, LI Jie. Characterization and sintering behavior of ultra-fine Mo-Cu powder prepared by gelatinization-coreduction method[J]. The Chinese Journal of Nonferrous Metals, 2007, 17......
. The shape memory strains were obtained as: (h2-h1)/h0 ×100%. The recovery ratio (R) was calculated as: (h2-h1)/(h0-h1)× 100%. 3 Results and discussion 3.1 Microstructure The powder XRD patterns... alloy, which leads to a reduction in tetragonality (c/a). Simultaneously, substituting Al for Ga in Ni-Mn-Ga alloy expands the unit-cell volume. Fig. 1 Powder XRD patterns of Ni54Mn25Ga15Al6......
analysis (XRD, Rigaku D/max 2500) was carried out with an ARL X-ray powder diffractometer using Cu Ka radiation. Surfaces and crystal size of ATO nano-particles were observed employing a field emission...’KO V E, KREMENITSKYI V V. Effect of pressure–temperature treatment on the properties of antimony-doped tin dioxide [J]. Powder Metallurgy and Metal Ceramics, 2012, 51(3-4): 82-89. [15] ZHONG Xiao-hua......
for initial-stage sintering thermodynamics of an alumina powder[J]. Powder Technology, 2008, 188: 9-12. [8] 陈玉勇, 肖树龙, 徐丽娟, 韩杰才. 不同型壳材料条件下钛合金显微组织及界面反应[J]. 中国科技论文在线, 2010, 5(4): 269-273. CHEN Yu-yong, XIAO......
, HE Y H, SHANG S L, LIU Z K. Pore structure and gas permeability of high Nb-containing TiAl porous alloys by elemental powder metallurgy for microfiltration application[J]. Intermetallics, 2013, 33: 2-7.... Characterization of TiAl-based alloy with high-content Nb by powder metallurgy[J]. Transactions of Nonferrous Metals Society of China, 2012, 22(S2): s491-s495. (编辑 龙怀中) 基金项目:国家自然科学基金资助项目(51001040......
due to the low density, high strength, high modulus and corrosion resistance [1-3]. Moreover, conventional techniques, such as powder metallurgy, common casting and mechanical alloying, can be applied... is studied. 2 Experimental The titanium matrix composite was prepared with gradeⅠsponge titanium, LaB6 powder (>99%) and materials for synthesizing matrix Ti-Al-Sn-Zr-Mo-Si alloy such as AlMo (50% Mo......
, Zhe-an SU, Xin YANG, Liu-xu CAO, Qing-zhong HUANG State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China Received 29 July 2013; accepted 27 February 2014 Abstract... developed such as powder doping, chemical vapor infiltration and liquid precursor impregnation, to introduce ZrC into C/C composites, which have been widely studied in previous works. LI et al [11......
, INOUE A. Thermal stability and soft magnetic properties of Fe-Co-Ga-P-C-B alloys with high glass-forming ability[J]. Journal of the Japan Society of Powder and Powder Metallurgy, 2002, 49(12): 1113-1118......
