Microstructure and mechanical properties of h-BN–SiC ceramic composites prepared by in situ combustion synthesis

2012 ◽  
Vol 540 ◽  
pp. 102-106 ◽  
Author(s):  
Y.T. Zheng ◽  
H.B. Li ◽  
T. Zhou
Keyword(s):  
Mechanical Properties ◽  
Combustion Synthesis ◽  
Ceramic Composites ◽  
In Situ Combustion ◽  
Microstructure And Mechanical Properties ◽  
Sic Ceramic

Fabrication of MgO/Graphene Composites by Combustion Synthesis and Spark Plasma Sintering

2018 ◽  
Vol 281 ◽  
pp. 125-130
Author(s):  
Nan Lu ◽  
Jia Xi Liu ◽  
Gang He ◽  
Jiang Tao Li
Keyword(s):  
Mechanical Properties ◽  
Combustion Synthesis ◽  
Spark Plasma Sintering ◽  
Sintering Temperature ◽  
Ceramic Composites ◽  
Combustion Reaction ◽  
Sintering Additive ◽  
Microstructure And Mechanical Properties ◽  
Plasma Sintering ◽  
Spark Plasma

MgO/Graphene ceramic composites were fabricated by combining combustion synthesis with spark plasma sintering. MgO/Graphene mixture powders were prepared by the combustion reaction between Mg powders and CO2 gas. Dense MgO/Graphene composites were fabricated by spark plasma sintering (SPS) using LiF as the sintering additive. The effect of the sintering temperature on microstructure and mechanical properties of the prepared MgO/Graphene ceramics was discussed. The sintering temperature of the MgO/Graphene mixture powders increased from 900°C to 1300°C. The highest density of 3.43g/cm3 and hardness of 2133MPa were obtained at 1100°C. Compared with monolithic MgO ceramics, the hardness of MgO/Graphene ceramics at the same sintering temperature was increased from 840MPa to 2133MPa.

Microstructure and mechanical properties of SPS sintered Al2O3–ZrO2 (3Y)–SiC ceramic composites

2020 ◽  
Vol 781 ◽  
pp. 139197 ◽  
Author(s):  
Jianlong Chai ◽  
Yabin Zhu ◽  
Zhiguang Wang ◽  
Tielong Shen ◽  
Yiwen Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ceramic Composites ◽  
Microstructure And Mechanical Properties ◽  
Sic Ceramic

In Situ Combustion Synthesis of h-BN-SiC High-Temperature Ceramics

2007 ◽  
Vol 353-358 ◽  
pp. 1501-1504 ◽  
Author(s):  
Hong Bo Li ◽  
Yong Ting Zheng ◽  
Jie Cai Han
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Combustion Synthesis ◽  
Bending Strength ◽  
Silicon Powder ◽  
Nitrogen Pressure ◽  
In Situ Combustion ◽  
Reaction Thermodynamics ◽  
Adiabatic Combustion Temperature

The feasibility of fabricating h-BN-SiC high-temperature ceramics by in-situ combustion synthesis was demonstrated by igniting the mixture of boron carbide and silicon powder under 100MPa nitrogen pressure. The reaction thermodynamics and the adiabatic combustion temperature were calculated theoretically. The phase composition, microstructure and mechanical properties of composite were identified by XRD and SEM. The maximum bending strength and fracture toughness of the composite were 65.2 MPa and 1.4 MPa·m1/2 under room temperature, respectively. The effects of h-BN and SiC dilution contents on the mechanical properties of composite were also discussed.

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