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. Effects of cold-pressing pressure of preforms on microstructures and mechanical properties of the composites were studied. Synthesis mechanism and toughening mechanism of composite were also analyzed... melt infiltration(RMI); toughening mechanism  ......
and toughness is evident: the more irregular the geometry of the crack, the higher the fracture toughness. Key words: Al2O3-TiC-Co; Al2O3-TiC; fractal; toughening mechanism; indentation crack 1 Introduction.... The resulting toughening effect is largely due to crack deflection mechanism besides grain refinement effects. The crack profile (or irregularity) then is closely related to the crack deflection......
/EP system displays tough fracture features. Key words: polyurethane; epoxy resin; toughening  ...燕, 王 颖. 环氧树脂的共混增韧改性研究[J]. 高分子通报, 2003(6): 8-12. YUAN Li, MA Xiao-yan, WANG Yin. Study on development of toughening epoxy resins[J]. Polymer Bulletin, 2003(6): 8-12. [2] 周金向, 黄慧萍, 李艳玲, 等. 环氧树脂的增韧改性新方......
effects. Key words: CNTs/MoSi2 composite; spark plasma sintering; mechanical property; microstructure; strengthening and toughening mechanism 1 Introduction The combination of high melting point (2030 °C... strengthening of Mo4.8Si3C0.6 particles hindering crack propagation. CARTER and HURLEY [27] suggested that crack deflection was the main toughening mechanism in SiC-whisker-reinforced MoSi2......
of the composites were investigated. The toughening mechanism was also analysed. The results show that the relative density and Rockwell hardness of the composites increase with increasing Nb2O5 content. When...: two-phase TiAl alloy; Al2O3; in situ reaction; microstructure; mechanical property; toughening mechanism  ......
with weak interface toughening mechanism 弱界面增韧层状材料,除了通过增多断口面积消耗能量外,适当地提高界面强度使断裂吸收功增多,可以进一步改善韧性.此外,界面强度太低可能会引起层状材料综合性能的下降,甚至会影响其结构完整性[37].因此,制备/设计弱界面增韧层状材料时,可以通过制备工艺优化,中间层选择/设计等方式适当地提高界面强度以拓展层状材料的应用范围. 1.2...,这极大地提高了其安全性和使用性能. 图3 塑性中间层增韧层状材料的机理示意图 Fig. 3 Mechanism schematic diagram of plastic interlayer toughening lamellar materials 综上所述,层状增韧主要是利用引入的界面或/和中间层消耗脆性材料断裂时的能量以改善其韧性.因此,层状材料研究的关键在于其界......
Trans. Nonferrous Met. Soc. China 28(2018) 2440-2448 Microstructure-fracture toughness relationships and toughening mechanism of TC21 titanium alloy with lamellar microstructure Zhi-feng SHI1,2, Hong... plates (or secondary α platelets) could enhance the fracture toughness of TC21 alloy. Based on energy consumption by the plastic zone of crack tip in α plates, a toughening mechanism for titanium alloys......
Effect of rod-like grain on properties and toughening mechanism of 3Y-TZP/Al2O3 ceramics RONG Shou-fan(荣守范)1, 2, JI Ze-sheng(吉泽升)1, ZHU Yong-chang(朱永长)2, ZHANG Jing-qiang(张敬强)2 1. School..., microstructure, toughening mechanism and access of Al2O3 ceramics were investigated by SEM, EDS and WDW omnipotent electronic mechanical testing machine, etc, and the crack propagating model......