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http://dx.doi.org/10.5714/CL.2016.19.057

Yield enhancement of matrix precursor in short carbon fiber reinforced randomly oriented carbon/carbon composite  

Raunija, Thakur Sudesh Kumar (Carbon and Ceramics Laboratory (CCL), Materials and Mechanical Entity, Vikram Sarabhai Space Centre, Indian Space Research Organisation)
Sharma, Sharad Chandra (Materials and Metallurgy Group (MMG), Materials and Mechanical Entity, Vikram Sarabhai Space Centre, Indian Space Research Organisation)
Verma, Anil (Sustainable Environergy Research Lab (SERL), Department of Chemical Engineering, Indian Institute of Technology Delhi)
Publication Information
Carbon letters / v.19, no., 2016 , pp. 57-65 More about this Journal
Abstract
Isroaniso matrix precursor synthesized from commercially available petroleum pitch was stabilized in air. The influence of oxygen mass gain during stabilization on the yield of matrix precursor was studied. Additionally, the influence of pressure on the yield of the stabilized matrix precursor in a real system was studied. The fourier transform infrared spectrometry (FTIR), thermogravimetric analysis (TGA), yield, yield rate, and yield impact were used to check the effect of stabilization and pressure on the yield of the matrix precursor and the end properties of the composite thereafter. The results showed that the yield increased with stabilization duration up to 20 h whereas it decreased for stabilization duration beyond 20 h. Further results showed that the stabilized matrix precursor for a duration of 5 h could withstand almost two-fold greater hot-pressing pressure without resulting in exudation as compared to that of a 1 h stabilized matrix precursor. The enhanced hot-pressing pressure significantly improved the yield of the matrix precursor. As a consequence, the densification and mechanical properties were increased significantly. Further, the matrix precursor stabilized for a duration of 20 h or more failed to provide proper and uniform binding of the reinforcement.
Keywords
isroaniso matrix precursor; oxidative stabilization; hot-pressing; yield; yield impact;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Raunija TSK, Mathew M, Sharma SC. Carbon/carbon composite vane. Bharatiya Vaigyanik evam Audyogik Anusandhan Patrika, 22, 87 (2014).
2 Raunija TSK, Babu S. Randomly oriented carbon/carbon composite. AIP Conf Proc, 1538, 168 (2013). http://dx.doi.org/10.1063/1.4810050.   DOI
3 Fitzer E. The future of carbon-carbon composites. Carbon, 25, 163 (1987). http://dx.doi.org/10.1016/0008-6223(87)90116-3.   DOI
4 Savage G. Carbon-Carbon Composites, Springer, Houten (1993). http://dx.doi.org/10.1007/978-94-011-1586-5.   DOI
5 Morgan P. Carbon Fibers and Their Composites, CRC Press, Boca Raton (2005).
6 Raunija TSK, Mathew M, Sharma SC. Exfoliation-assisted dispersion of short carbon fibers in silicon carbide powder. Powder Technol, 267, 273 (2014). http://dx.doi.org/10.1016/j.powtec.2014.07.033.   DOI
7 Raunija TSK, Babu S, Wesley CS. A process of producing carbon/carbon composite. IN Patent 1713/CHE/2012 (2012).
8 Fathollahi B, Chau PC, White JL. Injection and stabilization of mesophase pitch in the fabrication of carbon-carbon composites: part II. stabilization process. Carbon, 43, 135 (2005). http://dx.doi.org/10.1016/j.carbon.2004.08.031.   DOI
9 Fathollahi B, Chau PC, White JL. Injection and stabilization of mesophase pitch in the fabrication of carbon-carbon composites. Part I: injection process. Carbon, 43, 125 (2005). http://dx.doi.org/10.1016/j.carbon.2004.08.030.   DOI
10 Fathollahi B, Jones B, Chau PC, White JL. Injection and stabilization of mesophase pitch in the fabrication of carbon-carbon composites. Part III: mesophase stabilization at low temperatures and elevated oxidation pressures. Carbon, 43, 143 (2005). http://dx.doi.org/10.1016/j.carbon.2004.08.032.   DOI
11 Manocha LM, Patel M, Manocha SM, Vix-Guterl C, Ehrburger P. Carbon/carbon composites with heat-treated pitches: I. effect of treatment in air on the physical characteristics of coal tar pitches and the carbon matrix derived therefrom. Carbon, 39, 663 (2001). http://dx.doi.org/10.1016/S0008-6223(00)00178-0.   DOI
12 Petrova B, Budinova T, Petrov N, Yardim MF, Ekinci E, Razvigorova M. Effect of different oxidation treatments on the chemical structure and properties of commercial coal tar pitch. Carbon, 43, 261 (2005). http://dx.doi.org/10.1016/j.carbon.2004.09.006.   DOI
13 Raunija TSK, Manwatkar SK, Sharma SC, Verma A. Morphological optimization of process parameters of randomly oriented carbon/carbon composite. Carbon Lett, 15, 25 (2014). http://dx.doi.org/10.5714/CL.2014.15.1.025.   DOI
14 Fanjul F, Granda M, Santamaría R, Menéndez R. Pyrolysis behaviour of stabilized self-sintering mesophase. Carbon, 41, 413(2003). http://dx.doi.org/10.1016/S0008-6223(02)00343-3.   DOI
15 Raunija TSK, Gautam RK, Sharma SC, Verma A. Yield behavior of matrix precursor and interaction with reinforcement in randomly oriented carbon/carbon composite. Under review (2016).
16 Raunija TSK, Sharma SC. Influence of hot-pressing pressure on the densification of short-carbon-fiber-reinforced, randomly oriented carbon/carbon composite. Carbon Lett, 16, 25 (2015). http://dx.doi.org/10.5714/CL.2015.16.1.025.   DOI
17 Raunija TSK. Influence of temperature and time shifts on the densification of randomly oriented carbon/carbon composite. Def Sci J, 65, 411 (2015). http://dx.doi.org/10.14429/dsj.65.8135.   DOI
18 Li H, Li H, Lu J, Zhang X, Li K. Effects of air oxidation on mesophase pitch-based carbon/carbon composites. Carbon, 49, 1416(2011). http://dx.doi.org/10.1016/j.carbon.2010.12.009.   DOI