Investigation of thermal expansion of 3D-stitched C–SiC composites

Kumar, Suresh; Kumar, Anil; Shukla, Anupam; Devi, G Uma; Gupta, Avi

doi:10.1016/j.jeurceramsoc.2009.04.005

Cited by 25 publications

(12 citation statements)

References 17 publications

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“…Similar to thermal diffusivity, CTE of different types of C/SiC composites was determined and reported [4,15,16,52]. Summary of CTE of the 3D stitched and 3D, 4D woven C/SiC composites which were siliconized at 1650 C for 120 min is given in Table 6 for their different directions.…”

Section: Cte Of C/sic Compositesmentioning

confidence: 93%

“…Woven preforms are the other common means of using carbon fiber as reinforcement. Carbon fibers are anisotropic where their mechanical and thermal properties are greatly different along their axis and radially [15][16][17][18]. Depending on the structural load requirements, a definite fiber volume fraction needs to be maintained in different directions of the composite structure.…”

Section: Woven Preformmentioning

confidence: 99%

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SiC-Based Composites Through Liquid Infiltration Routes

Kumar¹,

Ranjan²,

Manocha³

et al. 2019

Handbook of Advanced Ceramics and Composites

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Carbon fiber-reinforced silicon carbide matrix composites (called C/SiC or C/C-SiC) represent a relatively new class of structural materials. These composites have emerged as one of the most promising materials for high-temperature applications in defense and aerospace sectors. They are fabricated via chemical vapor infiltration (CVI), polymer impregnation and pyrolysis (PIP), and liquid silicon infiltration (LSI) processing routes. Several new manufacturing processes have been developed during the last few years such as short fiber reinforcements' based and cheap ceramic precursor polymer based. These composites possess high mass-specific properties, structural and dimensional stability at high temperature, low coefficient of thermal expansion, high thermal conductivity, and reasonable oxidation resistance. These properties have increased the importance of the C/SiC composites and thus make them as most preferred materials for the aerospace, defense, and civil/industrial applications like thrust vectoring control vanes, nozzles, brake disks and pads, clutches, furnace charging devices, etc. This chapter presents the processing and characterization of the C/SiC composite fabricated by liquid infiltration routes, viz., PIP and LSI. Typical properties of the C/SiC composites like mechanical, thermal, and ablative are presented. Few established and potential application of these composites are discussed briefly.

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Section: Cte Of C/sic Compositesmentioning

confidence: 93%

Section: Woven Preformmentioning

confidence: 99%

SiC-Based Composites Through Liquid Infiltration Routes

Kumar¹,

Ranjan²,

Manocha³

et al. 2019

Handbook of Advanced Ceramics and Composites

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“…Uniform properties and the high ablation resistance may be obtained in a composite by selecting an appropriate fiber architecture and the process parameters. [13][14][15][16][17][18] Ablation properties of the C/SiC composite nozzle fabricated via chemical vapor infiltration (CVI) process have been reported under the ethanol/oxygen propulsion system for a short duration. 13 Although the CVI-based composites posses better mechanical properties, their fabrication is difficult due to certain challenges, such as larger process time and density gradation across the composite thickness.…”

Section: Introductionmentioning

confidence: 99%

“…In LSI-based C/SiC composite process, molten silicon metal infiltrates into the pores of the carbon fiber-reinforced carbon composite preform by capillary action at above 1420°C, under vacuum/inert. [16][17][18][19] The infiltrated silicon reacts with the carbon matrix of the C/C composite, and thus, the carbon matrix get converts to SiC. The carbon fibers provide excellent mechanical strength to the composite if the reaction is restricted to the carbon matrix.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Ablation Studies of 4D C/SiC Composite Nozzle Under Liquid Propulsion

Kumar

Mala

et al. 2015

Int J Applied Ceramic Tech

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4D C/SiC composite nozzle was fabricated using LSI and characterized for mechanical, thermal, and ablation properties. Average flexural and compressive strengths in the Z-direction were found to be 119 and 110 MPa, while in the U-, V-and W-directions, they were 99 and 55MPa, respectively. Coefficient of thermal expansion was found to be varied in the range 0-1.5 9 10 À6 /°C (25-1050°C), while thermal diffusivity was 40-5 mm 2 /s (25-1200°C). Ablation behavior of the nozzle was evaluated under UH25/N 2 O 4 propulsion system for 30 s. The overall mass erosion rate and the linear ablation rate were found to be 0.119 kg/m 2 s and 0.05 mm/s, respectively.

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“…The basic thermophysical properties of 8 H satin C/SiCs fabricated by liquid silicon infiltration were investigated by Kumar et al [8,9]. The effects of siliconization conditions on thermal diffusivity and coefficient of thermal expansion (CTE) of 8 H satin C/SiCs were obtained.…”

Section: Introductionmentioning

confidence: 99%