scholarly journals Microstructure and mechanical properties of M40/AZ91 composites fabricated by pressure infiltration method

2021 ◽  
Vol 24 ◽  
pp. 100640
Author(s):  
Zhenming Sun ◽  
Xiaoshi Hu ◽  
Xiaojun Wang ◽  
Kun. Wu ◽  
Weimin Gan
Keyword(s):  
Mechanical Properties ◽  
Pressure Infiltration ◽  
Microstructure And Mechanical Properties ◽  
Infiltration Method

Effect of Forming Pressure on Microstructure and Mechanical Properties of B4C- SiC-Si Ceramic Composites

2018 ◽  
Vol 768 ◽  
pp. 152-158 ◽  
Author(s):  
Hui Zong ◽  
Cui Ping Zhang ◽  
Hong Qiang Ru ◽  
He Huang ◽  
Jing Hui Zhu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Bending Strength ◽  
Ceramic Composites ◽  
Volume Density ◽  
Molten Silicon ◽  
X Ray Diffraction ◽  
Universal Testing ◽  
Microstructure And Mechanical Properties ◽  
Infiltration Method

B4C-SiC-Si ceramic composites were fabricated based on molten silicon infiltration method. The influence of preforms'forming pressure on the microstructure and mechanical properties of B4C-SiC-Si ceramic composites was studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electron universal testing machines, etc. The results showed that the ceramic consists of B4C, B12(C,Si,B)3, SiC and Si phases. The microstructure analysis showed that: the volume percent of free silicon decreased with the increase in forming pressures. The Vikers-hardness of B4C-SiC-Si ceramic composites increased, while the bending strength and fracture toughness both increased initially and then decreased with the increase in forming pressures of which the optimal pressure is 200 MPa. The optimum bending strength, fracture toughness and Vikers-hardness of the obtained B4C-SiC-Si ceramic composites are 319±13 MPa, 4.9±0.1 MPa·m1/2and 24±1 GPa, respectively. The volume density and open porosity of the obtained B4C-SiC-Si ceramic composites are 2.58 g/cm3and 0.19 %, respectively.

Mechanical Properties of Cf/Mg Composites Fabricated by Pressure Infiltration Method

2010 ◽  
Vol 26 (10) ◽  
pp. 931-935 ◽  
Author(s):  
Meihui Song ◽  
Gaohui Wu ◽  
Wenshu Yang ◽  
Wei Jia ◽  
Ziyang Xiu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Pressure Infiltration ◽  
Infiltration Method
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