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of metal powder in high velocity compaction by using discrete element method[J]. Journal of Mechanical Engineering, 2018, 54(10): 85-92. Simulation on evolution characteristics of force chain in granular......
基本相符. 图4 辉钼精矿在873 K氧气气氛中焙烧20 min后获得的针状产物的形貌和XRD谱 Fig. 4 Powder micrograph(a) and XRD pattern(b) of needle-like product obtained by roasting molybdenite concentrate at 873 K for 20 min 图5... Industry, 2010, 34(5): 28-31. [17] WANG L, ZHANG G H, SUN Y J, et al. Preparation of ultrafine β-MoO3 from industrial grade MoO3 powder by the method of sublimation[J]. The Journal of Physical Chemistry C......
samples were dissolved according to the standard process and determined by ICP-OES (Agilent Technologies 700 series ICP-OES). The structure and morphology of the particles were characterized by powder X......
. Mechanical property of granite from different buried depths under uniaxial compression and dynamic impact: An energy-based investigation [J]. Powder Technology, 2020, 362: 729-744. DOI: 10.1016/j.powtec......
A, 2015, 636: 361-372. [3] SHAHA S K, CZERWINSKI F, KASPRZAK W, FRIEDMAN J. CHEN D L. Microstructure and mechanical properties of Al-Si cast alloy with additions of Zr-V-Ti [J]. Materials & Design... extruded from rapidly solidified powder [J]. Journal of Materials Science, 1990, 25: 4541-4548. [45] WARMUZEK M. Aluminum-silicon casting alloys: Atlas of microfractographs [M]. New York: ASM International......
of gibbsite[J]. Powder Technology, 2003, 130(1/3): 345-351. [95] 谢雁丽, 李尚明, 毕诗文, 杨毅宏, 王 志. 强化铝酸钠溶液晶种分解过程的研究[J]. 轻金属, 2000(7): 18-24.XIE Yan-li,Li Shang-ming,BI Shi-wen,YANG Yi-hong, WANG Zhi. Study... A. Effect of synthesis parameters on precipitation of nanocrystalline boehmite from aluminate solutions[J]. Powder Technology, 2007, 175(3): 163-173. [131] PANIAS D, ASIMIDIS P, PASPALIARIS I......
, Wang G X, et al. Microstructural development in a rapidly cooled eutectic Sn-3.5%Ag solder reinforced with copper powder[J]. Powder Technology, 2006, 166(1): 38-46. [27] 刘平. 颗粒增强Sn3.8Ag0.7Cu复合无铅焊料的研究......
化物型氧载体,钙钛矿氧载体是研究最广泛的类型,其优异的结构使得其具有优良的性能[56, 89].通过添加一定量的助剂,例如向钙钛矿型氧载体的A位添加Sr以获取更多的氧空位,以及向氧化铈中添加离子半径较小的氧化锆以引起晶格畸变,可降低氧离子扩散的活化能,有利于晶格氧的迁移和扩散,因而可以及时消除表面上的碳沉积,避免氧载体失活.除了修饰氧载体之外,还可以通过优化反应条件来抑制碳沉积物的产生.钙钛矿型氧......
过饱和,富含锂矿物,稀土元素强烈的负Eu异常,锆石高Zr/Hf比值等特征,演化过程中发生熔体与流体交代作用,有利于岩浆充分演化和含矿岩浆热液的形成,为锡铅锌矿的成矿提供前提[45-46].大量的研究显示铟成矿与高分异花岗岩有关,如英国西南部富铟矿集区[47],德国东南部Erzgebirge地区[48],加拿大东部的Mount Pleasant矿区[49],华南的都龙,个旧等均显示与高分异花岗岩有关......
J. Cent. South Univ. (2020) 27: 629-673 DOI: https://doi.org/10.1007/s11771-020-4322-1 Decision making tools for optimal material selection: A review Divya ZINDANI, Saikat Ranjan MAITY, Sumit BHOWMIK Department of Mechanical Engineering, National Institute of Technology Silchar, Silchar,Assam-7880......