Microstructure and thermal conductivity of Mo–TiC cermets processed by hot isostatic pressing

Flem, Marion Le; Allemand, A.; Urvoy, Stéphane; Cédat, Denis; Rey, Colette

doi:10.1016/j.jnucmat.2008.01.033

Cited by 42 publications

(19 citation statements)

References 21 publications

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“…This corresponds to a thermal conductivity of 5 W/(m K) ( c p =0.6 J/(g K)). The thermal diffusivity of the coating is one fourth of the value for the bulk material, which can be explained by the presence of TiC (λ=7.7 × 10 −6 m 2 /s), 21 oxides, pores, and a larger number of grain boundaries. As described above, the coatings have a texture with basal planes aligned along the substrate surface.…”

Section: Resultsmentioning

confidence: 99%

Annealing of Thermally Sprayed Ti2AlC Coatings

Frodelius

Johansson

Córdoba

et al. 2010

International Journal of Applied Ceramic Technology

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Phase transformations during annealing of coatings sprayed with the high‐velocity oxy‐fuel technique using Ti2AlC powder have been investigated by in situ X‐ray diffraction. The as‐deposited coatings, consisting of Ti2AlC, Ti3AlC2, TiC, Ti–Al, and oxides, are stable up to 500°C. Ti3AlC2 forms above 550°C and Ti2AlC forms above 700°C by intercalation of Al into TiCx. For temperatures between 900°C and 1100°C, Ti3AlC2 and Ti2AlC decompose by losing Al to the surrounding matrix resulting in TiCx and Al2O3. The thermal expansion coefficient between ambient and 700°C is 11.9 × 10−6 K−1. The thermal diffusivity at room temperature is 10.5 × 10−6 m2/s.

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Section: Resultsmentioning

confidence: 99%

Annealing of Thermally Sprayed Ti2AlC Coatings

Frodelius

Johansson

Córdoba

et al. 2010

International Journal of Applied Ceramic Technology

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“…24 These two formulas were used to evaluate the thermal conductivity of the two-phase SiC-TiC, according to the following hypothesis:…”

Section: Thermal Conductivitymentioning

confidence: 99%

Fabrication and characterization of sintered TiC–SiC composites

Cabrero

Audubert

Pailler

2011

Journal of the European Ceramic Society

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“…Cermets are a type of composites composed of ceramic and metal phases that are generally fabricated by sintering. Ceramics such as TiC, ZrC and HfC are reinforcement phases and have the property of being hard but brittle (K IC = 2-5 MPa(m) 1/2 ) [8]. The metal phases are, in contrast, ductile and tough.…”

Section: Introductionmentioning

confidence: 99%

Solidification pathways and phase equilibria in the Mo–Ti–C ternary system

Ida

Sekido

Yoshimi

2020

High Temperature Materials and Processes

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AbstractThe liquidus surface projection and isothermal section at 1,800°C in the Mo–Ti–C ternary system are examined using arc-melted alloys. A ternary transition peritectic reaction (L + Mo2C → Mo + TiC) takes place during solidification, which is apparently different from the ternary eutectic reaction (L → Mo + TiC + Mo2C) observed in a previous report. Since the composition of the eutectic reaction (L → Mo + TiC) shifts toward the Mo–Ti binary line with increasing Ti concentration, the volume fraction of the Mo phase and the interlamellar spacing of the Mo and TiC phases increase in the eutectic microstructure. At 1,800°C, the TiC phase in equilibrium with the Mo phase can contain more than 28 at% Mo and a Mo/TiC/Mo2C three-phase region exists at around Mo–15Ti–10C.

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Microstructure and thermal conductivity of Mo–TiC cermets processed by hot isostatic pressing

Cited by 42 publications

References 21 publications

Annealing of Thermally Sprayed Ti2AlC Coatings

Annealing of Thermally Sprayed Ti2AlC Coatings

Fabrication and characterization of sintered TiC–SiC composites

Solidification pathways and phase equilibria in the Mo–Ti–C ternary system

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