Porous SiC-Si2N2O-Si3N4 composite ceramics with excellent EMW absorption properties prepared by gelcasting and carbonthermal reduction

2022 ◽  
Vol 889 ◽  
pp. 161724
Author(s):  
Shuang Yin ◽  
Limei Pan ◽  
Xia Fang ◽  
Yang Wang ◽  
Jian Yang
Keyword(s):  
Composite Ceramics ◽  
Absorption Properties ◽  
Porous Sic

Porous SiC/SiCN composite ceramics fabricated by foaming and reaction sintering

2017 ◽  
Vol 37 (3) ◽  
pp. 1131-1134 ◽  
Author(s):  
Jun Li ◽  
Wenjie Yuan ◽  
Chengji Deng ◽  
Hongxi Zhu
Keyword(s):  
Reaction Sintering ◽  
Composite Ceramics ◽  
Porous Sic

Microwave absorption properties of polymer-derived SiCN(CNTs) composite ceramics

2021 ◽  
Vol 47 (1) ◽  
pp. 1294-1302
Author(s):  
Shan Wang ◽  
Hongyu Gong ◽  
Yujun Zhang ◽  
M. Zeeshan Ashfaq
Keyword(s):  
Microwave Absorption ◽  
Composite Ceramics ◽  
Absorption Properties ◽  
Microwave Absorption Properties

Dielectric and microwave-absorption properties of SiC nanoparticle/SiBCN composite ceramics

2014 ◽  
Vol 34 (2) ◽  
pp. 205-215 ◽  
Author(s):  
Fang Ye ◽  
Litong Zhang ◽  
Xiaowei Yin ◽  
Yajun Zhang ◽  
Luo Kong ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Composite Ceramics ◽  
Absorption Properties ◽  
Microwave Absorption Properties

Thermal Conductivity of Biomorphic Porous SiC Based Ceramics

2010 ◽  
Author(s):  
Nadejda Popovska ◽  
Emad Alkhateeb ◽  
Tanja Kugler ◽  
Andreas P. Fro¨ba ◽  
Alfred Leipertz
Keyword(s):  
Thermal Conductivity ◽  
Single Phase ◽  
Porous Ceramic ◽  
Chemical Vapor ◽  
Composite Ceramic ◽  
Laser Flash ◽  
Ceramic Composites ◽  
Chemical Vapor Infiltration ◽  
Composite Ceramics ◽  
Porous Sic

Biomorphic porous SiC composite ceramics were produced by chemical vapor infiltration and reaction (CVI-R) technique using paper preforms as template. The thermal conductivity of four samples with different composition and microstructure was investigated: a) C-template b) C-SiC, c) C-SiC-Si3N4 and d) SiC coated with a thin layer of TiO2. The SiC-Si3N4 composite ceramic showed enhanced oxidation resistance compared to single phase SiC. However; a key property for the application of these materials at high temperatures is their thermal conductivity. The later was determined experimentally at defined temperatures in the range 298–373K with a laser flash apparatus. It was found that the thermal conductivity of the porous ceramic composites increases in the following order: C-template < C-SiC < C-SiC-Si3N4 < SiC-TiO2. The results were interpreted in regard to the porosity and the microstructure of the ceramics.

Strong effect of atmosphere on the microstructure and microwave absorption properties of porous SiC ceramics

2018 ◽  
Vol 38 (1) ◽  
pp. 29-39 ◽  
Author(s):  
Shun Dong ◽  
Xinghong Zhang ◽  
Dongyang Zhang ◽  
Boqian Sun ◽  
Liwen Yan ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Sic Ceramics ◽  
Porous Sic
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