Volume 12, Issue 3 (Autumn 2023)                   2023, 12(3): 23-44 | Back to browse issues page

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aminzadeh A, mashhadi M, farhang rad F. Effect of Short Carbon Fiber (Csf) Addition on Oxidation Resistance, toughness and hardness behavior of Pressureless. Iranian Journal of Ceramic Science & Engineering 2023; 12 (3) :23-44
URL: http://ijcse.ir/article-1-943-en.html
Effect of Short Carbon Fiber (Csf) Addition on Oxidation Resistance, toughness and hardness behavior of Pressureless
Abbas Aminzadeh1 , Mehri Mashhadi *2 , Farhad Farhang rad1
1- Malek-Ashtar university
2- Malek-Ashtar university , me_mashadi@yahoo.com
Abstract:   (1287 Views)
This study attempts to investigate the impact of short carbon fiber on sinter permeability, fracture toughness, oxidation resistance, and ablation of ZrB2-SiC-ZrC nanocomposites prepared by pressureless sintering (PLS) method. In this respect, seven nanocomposites having amounts of 0,2.5,5,7.5,10,12.5 and 15 wt% carbon fibers with 4 wt% of B4C to Improve sinterability have been sintered utilizing PLS method. The sintering process was performed at 2100℃ temperature within 1 hour at about 10 ͦC/min heating rate. The results indicated that increasing the amount of carbon fibers led to sample’s relative density decrease as well as open porosity increase. Also, it is revealed that increasing the amount of carbon fibers in the values investigated in this research reduces the solidity of ZrB2-SiC-ZrC nanocomposites and improves their fracture toughness. Moreover, the oxidation behavior of nanocomposites has been measured by oxyacetylene test. The results showed that the ZSZ sample with a mass increase after oxyacetylene flame test has a completely dense structure without porosity and has good resistance to oxidation. In addition, by increasing the percentage of carbon fibers after testing the oxyacetylene flame, a decrease in mass occurs in other samples.
Keywords: Ultra High temperature ceramics, Carbon fibers, Oxidation, ZrB2-ZrC-SiC, PLS
Full-Text [PDF 3904 kb]   (222 Downloads)    
Type of Study: Research | Subject: Nanomaterials
Received: 2023/10/25 | Accepted: 2023/12/19
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