Tribological behaviour of C/C–SiC composites—A review

Kumar, Parshant; Srivastava, V. K.

doi:10.1007/s40145-015-0171-z

Cited by 92 publications

(26 citation statements)

References 59 publications

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“…It is observed that the value of Weibull modulus, 'm', increases with increasing content of kalsilite in the matrix. 19 This phenomenon can be attributed to the presence of fine kalsilite crystal in the matrix and the absence of microcracks in the samples (Figs 6 and 7). The high values of 'm' (m = 10.07 to 17.06) confirm the reliability of these samples.…”

Section: Resultsmentioning

confidence: 90%

In vitro Cytotoxicity, Apoptotic and Hemolysis Assay of Kalsilite‐Based Glass Ceramics for Dental Veneering Application

Singh

Hira

Manna

et al. 2015

Int J Applied Ceramic Tech

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Nanocrystalline kalsilite material was synthesized via a gel‐trapped coprecipitation for dental veneering applications. The prepared kalsilite powder was further mixed with a separately processed low temperature frit (LTF), in different weight ratio to optimize its coefficient of thermal expansion (CTE). These mixes were analyzed for their flexural strength and surface morphology. The cytocompatibility of mixes was investigated with reference to their effect on human buccal epithelial cells (SCC‐25). The flexural strength and CTE values of prepared kalsilite have been found to be comparable to the values obtained for a commercial opaque VMK 95 1M2 (product no. B333250; VITA Zahnfabrik H. Rauter GmbH KG Postfach 1338 D‐79704 Bad Sackingen, Germany). This confirmed the feasibility of prepared kalsilite material for dental veneering application. Kalsilite glass‐ceramic materials caused moderate levels of apoptosis in SCC‐25 cells at higher concentrations and were also tolerable by human RBC as evaluated from hemolytic assay. Human buccal epithelial cells were tolerant to kalsilite glass‐ceramic materials at lower concentrations although higher concentration (500 μg/mL) caused moderate damages in proliferative capacity of SCC‐25. The improved mechanical and biological properties of the prepared kalsilite confirmed its potential use in dental veneering.

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Section: Resultsmentioning

confidence: 90%

In vitro Cytotoxicity, Apoptotic and Hemolysis Assay of Kalsilite‐Based Glass Ceramics for Dental Veneering Application

Singh

Hira

Manna

et al. 2015

Int J Applied Ceramic Tech

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“…Carbon materials, especially carbon/carbon composites are deemed to be the most potential materials in the eld of aerospace and aeronautical owing to their superior high-temperature mechanical properties, for instance, low coe cient of thermal expansion, outstanding thermal shock resistance, high strength at extreme temperature and so on [1][2][3][4]. Unfortunately, the defect that carbon materials easily fail above 500 ℃ due to the oxidation of carbon is unable to be ignored [5], which causes the applications of carbon materials are severely hampered in an oxygen-containing environment.…”

Section: Introductionmentioning

confidence: 99%

Influence of MoSi2 on oxidation protective ability of TaB2-SiC coating in oxygen-containing environments within a broad temperature range

Ren

et al. 2020

Preprint

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TaB2-SiC coating modified by different content of MoSi2 was fabricated on graphite substrate with SiC inner coating by liquid phase sintering to elevate the anti-oxidation capability of the TaB2-SiC coatings. As compared to the sample with the TaB2-40wt.%SiC coating, the coating sample modified with MoSi2 exhibited a weight gain trend at lower temperatures, the fastest weight loss rate went down by 76%, and the relative oxygen permeability value reduced from about 1% to near 0. More importantly, the large amount of SiO2 glass phase produced over the coating during oxidation was in contact with the modification of MoSi2, which was proved to be beneficial to the dispersion of Ta-oxides. A concomitantly formed continuous Ta-Si-O-B compound glass layer showed excellent capacity to prevent oxygen penetration. However, when the TaB2 content was sacrificed to increase the MoSi2 content, the relative oxygen permeability of the coating increased instead of decreased. Thus, on the basis of ample TaB2 content, increasing the MoSi2 content of the coating is conducive to reducing the relative oxygen permeability of the coatings in a broad temperature region.

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“…Thus the high cost, low oxidation resistance and unstable friction behaviour of C/C composites limits its applications [6]. In order to overcome these disadvantages of C/C composites, SiC was incorporated in the carbon matrix to enhance its oxidation resistance and tribological performance [7]. Incorporation of SiC increases the hardness and thermal stability, and decreases the chemical reactivity which leads to the improvement of frictional properties of C/C composites.…”

Section: Introductionmentioning

confidence: 99%

Dry sliding tribology of carbon fibre reinforced ceramic matrix composites with variation of laminate orientation and surface conformity

Kumar¹,

Srivastava²

2020

Preprint

Self Cite

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Tribological behaviour of composites depend upon the surface conformity of interacting surfaces, local friction and wear response, and interaction area proportion of its constituents. Several other factors like wear debris interaction with the contact surfaces, and braking energy are also involved during in-service conditions. For laminated composites, interaction area proportion and wear debris interaction change with the orientation of laminates, due to change in surface conditions. Earlier research on tribological behaviour of carbon/carbon (C/C) and carbon/carbon-silicon carbide (C/C-SiC) composites mostly dealt with the parallel orientation of the laminates, and fully conformal surfaces. Thus, present article aims to investigate the tribological behaviour of C/C and C/C-SiC composites with variation of laminate orientation, surface conformity, normal load and sliding velocity. Normal and parallel orientation of laminates were considered with low and non–conformal Hertzian contacts. Worn surfaces were analysed under scanning electron microscope. The results show more fluctuations in friction coefficient (COF) for normal orientation of laminates. C/C-SiC composites loaded with parallel orientation of laminates generally exhibited highest COF and lowest wear loss. COF and wear loss decreased in non-conformal Hertzian contacts when compared with low conformity contacts and the reduction was large for C/C composites as compared to C/C-SiC composites.

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Tribological behaviour of C/C–SiC composites—A review

Cited by 92 publications

References 59 publications

In vitro Cytotoxicity, Apoptotic and Hemolysis Assay of Kalsilite‐Based Glass Ceramics for Dental Veneering Application

In vitro Cytotoxicity, Apoptotic and Hemolysis Assay of Kalsilite‐Based Glass Ceramics for Dental Veneering Application

Influence of MoSi2 on oxidation protective ability of TaB2-SiC coating in oxygen-containing environments within a broad temperature range

Dry sliding tribology of carbon fibre reinforced ceramic matrix composites with variation of laminate orientation and surface conformity

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