Characterization of TiC ceramics with SiC and/or WC additives using electron microscopy and electron probe micro-analysis

Delbari, Seyed Ali; Shakeri, Mohammad Sadegh; Salahshoori, Iman; Asl, Mehdi Shahedi; Namini, Abbas Sabahi; Abdolmaleki, Arash; Sheikhlou, Mehrdad; Farvizi, M.; Jang, Ho Won; Shokouhimehr, Mohammadreza

doi:10.1016/j.jtice.2021.05.039

Cited by 12 publications

(2 citation statements)

References 46 publications

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“…The addition of WC greatly improved the fracture toughness of the materials [22]. The fracture toughness of the composites reached 6.3 MPam 1/2 when 3.5 wt.% WC was added at 1600 • C. The increase in fracture toughness is due to the deflection and bridging of cracks along or around the (Ti, W) C phase [79]. As shown in Figure 7b, the residual stress caused by thermal mismatch ensures the crack deflection or bridging between TiC particles along the (Ti, W) C phase.…”

Section: Effect Of Particle Phase On Tic Matrix Compositesmentioning

confidence: 97%

Microstructure and Mechanical Properties of Carbide Reinforced TiC-Based Ultra-High Temperature Ceramics: A Review

et al. 2021

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TiC ceramics have become one of the most potential ultra-high temperature structural materials, because of its high melting point, low density, and low price. However, the poor mechanical properties seriously limit its development and application. In this work, this review follows PRISMA standards, the mechanism of the second phase (particles, whiskers, and carbon nanotubes) reinforced TiC ceramics was reviewed. In addition, the effects of the second phase on the microstructure, phase composition and mechanical properties of TiC ceramics were systematically studied. The addition of carbon black effectively eliminates the residual TiO2 in the matrix, and the bending strength of the matrix is effectively improved by the strengthening bond formed between TiC; SiC particles effectively inhibit the grain growth through pinning, the obvious crack deflection phenomenon is found in the micrograph; The smaller grain size of WC plays a dispersion strengthening role in the matrix and makes the matrix uniformly refined, and the addition of WC forms (Ti, W) C solid solution, WC has a solid solution strengthening effect on the matrix; SiC whiskers effectively improve the fracture toughness of the matrix through bridging and pulling out, the microscopic diagram and mechanism diagram of SiC whisker action process are shown in this paper. The effect of new material carbon nanotubes on the matrix is also discussed; the bridging effect of CNTs can effectively improve the strength of the matrix, during sintering, some CNTs were partially expanded into GNR, in the process of crack bridging and propagation, more fracture energy is consumed by flake GNR. Finally, the existing problems of TiC-based composites are pointed out, and the future development direction is prospected.

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Section: Effect Of Particle Phase On Tic Matrix Compositesmentioning

confidence: 97%

Microstructure and Mechanical Properties of Carbide Reinforced TiC-Based Ultra-High Temperature Ceramics: A Review

et al. 2021

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“…SPS of TiB 2 and the ZrB 2 -SiCw-C f system also shows relatively high density while adding nitrates [21,22]. The SPS of the Ti/TiB 2 -based composite allows the formation of in situ phases corresponding to significantly improving mechanical properties [23][24][25][26][27]. These studies show that the SPS process is used for high melting temperature materials, so processing temperature and oxide layer formation have been significantly reduced.…”

Section: Introductionmentioning

confidence: 99%

Insights on Spark Plasma Sintering of Magnesium Composites: A Review

et al. 2022

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This review paper gives an insight into the microstructural, mechanical, biological, and corrosion resistance of spark plasma sintered magnesium (Mg) composites. Mg has a mechanical property similar to natural human bones as well as biodegradable and biocompatible properties. Furthermore, Mg is considered a potential material for structural and biomedical applications. However, its high affinity toward oxygen leads to oxidation of the material. Various researchers optimize the material composition, processing techniques, and surface modifications to overcome this issue. In this review, effort has been made to explore the role of process techniques, especially applying a typical powder metallurgy process and the sintering technique called spark plasma sintering (SPS) in the processing of Mg composites. The effect of reinforcement material on Mg composites is illustrated well. The reinforcement’s homogeneity, size, and shape affect the mechanical properties of Mg composites. The evidence shows that Mg composites exhibit better corrosion resistance, as the reinforcement act as a cathode in a Mg matrix. However, in most cases, a localized corrosion phenomenon is observed. The Mg composite’s high corrosion rate has adversely affected cell viability and promotes cytotoxicity. The reinforcement of bioactive material to the Mg matrix is a potential method to enhance the corrosion resistance and biocompatibility of the materials. However, the impact of SPS process parameters on the final quality of the Mg composite needs to be explored.

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Microstructure, Mechanical Properties, and Sintering Behavior of Ti3O-Fe2TiO4-TiC Composites

Zhang,

Fan,

et al. 2024

J. of Materi Eng and Perform

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Characterization of TiC ceramics with SiC and/or WC additives using electron microscopy and electron probe micro-analysis

Cited by 12 publications

References 46 publications

Microstructure and Mechanical Properties of Carbide Reinforced TiC-Based Ultra-High Temperature Ceramics: A Review

Microstructure and Mechanical Properties of Carbide Reinforced TiC-Based Ultra-High Temperature Ceramics: A Review

Insights on Spark Plasma Sintering of Magnesium Composites: A Review

Microstructure, Mechanical Properties, and Sintering Behavior of Ti3O-Fe2TiO4-TiC Composites

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