Fabrication and Properties of Porous Carbon Preforms for Making Reaction Formed SiC

Chuan Qi Hu; Xiao Ting Huang; Hai Long Liang; Shu Guang Chen; Yan Li Huo; Hai Lin Liu; Jie Tang; Yu Feng Chen

doi:10.4028/www.scientific.net/KEM.697.169

Paper Titles

Polysilane as SiC Precursor: Preparation, Catalytic Cure and Pyrolysis
p.148

Zirconyldichloride Modified Polycarbosilazane as Precursors for SiZrCNO Ceramics
p.153

Preparation of Camphene Carbon/Silicon Carbide Slurry for 3D Printing
p.159

Preparation of Ti₂AlN Porous Ceramics by Organic Foam Impregnation Process
p.163

Fabrication and Properties of Porous Carbon Preforms for Making Reaction Formed SiC
p.169

Densification Behaviors in the Early Stage of Spark Plasma Sintering of 3Y-TZP Nanoceramics
p.173

Effect of Sintering Aids on the Properties of Porous YAG Ceramics
p.178

Effects of Particle Size on Densification Behavior of Si₃N₄ Ceramics
p.182

Effect of Sintering Pressure on Mechanical Properties of BN-Si₃N₄ Ceramic Composites Prepared by Spark Plasma Sintering
p.188

HomeKey Engineering MaterialsKey Engineering Materials Vol. 697Fabrication and Properties of Porous Carbon...

Fabrication and Properties of Porous Carbon Preforms for Making Reaction Formed SiC

Abstract:

This paper describes a proper low cost way to fabricate defects free porous carbon preforms with interconnect pore structure for making reaction formed SiC (RFSC). Taking charcoal , poplar powder, camphene and polymer dispersant together, making slurries by milling under 55 °C for several hours, controlling the content of charcoal and poplar powder, after casting, sublimating and carbonizing, the porous carbon performs with a series density (0.66 g/cm³-0.78 g/cm³) and porosity (62.9 vol.%-68.6 vol.%) were prepared; through the Si infiltrating process under a vacuum condition (~5.0 Pa) at 1500°C for about 0.5 hour, the RFSCs with fine mechanic performance were fabricated, one RFSC sample has the density, Weibull modulus, and the max three points flexural strength is 2.91 g/cm³, 9.5 and 505.0 MPa respectively.

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Periodical:

Key Engineering Materials (Volume 697)

Pages:

169-172

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.697.169

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Online since:

July 2016

Authors:

Chuan Qi Hu, Xiao Ting Huang, Hai Long Liang, Shu Guang Chen, Yan Li Huo, Hai Lin Liu, Jie Tang, Yu Feng Chen

Keywords:

Porous Carbon Preform, Reaction Formed SiC

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