scholarly journals Microstructure and Properties of Thermal Electrode Material Si3N4–MoSi2 Composite Ceramics

Materials ◽  
2018 ◽  
Vol 11 (6) ◽  
pp. 986 ◽  
Author(s):  
Lichao Feng ◽  
Pengfei Guan ◽  
Xuemei Yu ◽  
Yiqiang He
Keyword(s):  
Electrode Material ◽  
Composite Ceramics ◽  
Microstructure And Properties ◽  
Mosi2 Composite ◽  
Thermal Electrode

Effect of AlF3 Content on Microstructure and Properties of Mullite/Al2O3 Composite Ceramics

2018 ◽  
Vol 922 ◽  
pp. 62-67
Author(s):  
Ke Zheng Sang ◽  
Fan Wang ◽  
De Jun Zeng ◽  
Hong Wei Li
Keyword(s):  
Fracture Toughness ◽  
Flexural Strength ◽  
Thermal Shock ◽  
Thermal Shock Resistance ◽  
Diameter Ratio ◽  
Pressureless Sintering ◽  
Composite Ceramics ◽  
Microstructure And Properties ◽  
Shock Resistance ◽  
Mullite Whiskers

To reinforce the mullite/Al2O3 composite ceramics through formation of mullite whiskers, the composite ceramics were prepared by pressureless sintering using different AlF3 content. The microstructure, porosity, fracture toughness and thermal shock resistance of the composite ceramics were investigated. The results show that the addition of AlF3 can promote the mullite whisker formations, and the whiskers with the size of 3～10μm in diameter and a length-diameter ratio of 10～15 are obtained by sintering at 1600°C with the AlF3 content of 5wt%. Fracture toughness and thermal shock resistance of the composite ceramics are improved by the formation of mullite whisker. The fracture toughness of 4.79MPa•m1/2 can be obtained, and the 95.18% flexural strength remained after thermal shock.

scholarly journals Laser irradiation of SiC-MoSi2 composite ceramics

2008 ◽  
Vol 40 (3) ◽  
pp. 271-281
Author(s):  
Marquez Aguilar ◽  
M. Vlasova ◽  
M.C. Reséndiz-González ◽  
M. Kakazey ◽  
Mayorga Cruz ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Laser Irradiation ◽  
Irradiation Time ◽  
Composite Ceramics ◽  
X Ray Diffraction ◽  
X Ray ◽  
Force Microscopy ◽  
Atomic Force ◽  
Ir Laser ◽  
Mosi2 Composite

The influence of continuous IR laser irradiation (? = 1064 nm, P = 240 mW) on SiC-MoSi2 composite ceramics was investigated by X-ray diffraction, electron microscopy, atomic force microscopy, and X-ray microanalysis. The irradiation of specimens was carried out in air. It was established that, due to heating of the surface under laser irradiation, oxidation of SiC and MoSi2 and sublimation of SiO (SiO2) and MoO3 take place. Depending on the content of the components in the ceramics and the irradiation time, SiO2 or MoO3 layers form on the surface or disappear from it. For a long irradiation time, the oxidation and cleaning of the surface (sublimation of oxides) are cyclic in character.

Microstructure and Properties of the Mullite–ZrO2(Y2O3)–Si3N4-Composite Ceramics Sintered in by Different Methods

2018 ◽  
Vol 59 (4) ◽  
pp. 369-374
Author(s):  
G. Sedmale ◽  
L. Grase ◽  
I. Zalite ◽  
N. Zilinska ◽  
J. Rodrigues
Keyword(s):  
Composite Ceramics ◽  
Microstructure And Properties

scholarly journals Microstructure and Properties of ZrO2-AlN Composite Ceramics by Microwave Sintering

2021 ◽  
pp. 150
Author(s):  
MU Tinghai ◽  
XU Wentao ◽  
LING Junrong ◽  
DONG Tianwen ◽  
QIN Zixuan ◽  
...  
Keyword(s):  
Microwave Sintering ◽  
Composite Ceramics ◽  
Microstructure And Properties

Anisotropic microstructure and properties of GNSs/MgO microwave-attenuating composite ceramics

2019 ◽  
Vol 45 (14) ◽  
pp. 17905-17914
Author(s):  
Cheng Chen ◽  
Xia Fang ◽  
Limei Pan ◽  
Shuang Yin ◽  
Tai Qiu ◽  
...  
Keyword(s):  
Composite Ceramics ◽  
Microstructure And Properties

Pressureless densification and properties of TiB 2 –B 4 C composite ceramics with Ni as additives

2018 ◽  
Vol 13 (7) ◽  
pp. 947-950 ◽  
Author(s):  
Li Ma ◽  
Jincheng Yu ◽  
Xue Guo ◽  
Yujun Zhang ◽  
Hongyu Gong
Keyword(s):  
Composite Ceramics
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