Relationship analysis on particle-coating-ablation property of UHTC coatings fabricated by plasma spray technique

Pan, Xiaohui; Xu, Xueting; Niu, Yaran; Huang, Shansong; Zhong, Xin; Zheng, Wei; Zeng, Yi; Zheng, Xiaofeng

doi:10.1016/j.ceramint.2020.09.238

Cited by 9 publications

(1 citation statement)

References 26 publications

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“…Ultrahigh-temperature ceramics (UHTCs) constitute a large family of compounds that include transition metal borides, carbides, nitrides, and silicides, of interest for use in extremetemperature environments. [1][2][3][4][5][6] Applications for these UHTCs include solid rocket motors because of the required high operating temperatures and chemically ablative environments due to the pressurized gas in these systems. [7][8][9] Therefore, UHTCs for rocket nozzles, thrusters, and combustion chambers must exhibit high melting temperatures and strong resistance to mechanical erosion.…”

Section: Introductionmentioning

confidence: 99%

Densification and Fracture Responses of (Ta_1−xW_x)C–WC Composites

et al. 2022

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The mechanical behavior of 90 vol% (Ta1−xWx)C–10 vol% WC (x ≈ 0.2) [90(Ta0.8W0.2)C–10WC] composites is described, achieving a significant enhancement in mean fracture strength compared with nominally pure TaC prepared under identical processing conditions (from 114 to 362 MPa), and a higher characteristic strength (from 188 to 377 MPa), while maintaining the same Weibull modulus of 13. The fracture strengths correspond to calculated critical flaw sizes in the range of 5–10 μm and are consistent with the microstructure observations presented. The 90(Ta0.8W0.2)C–10WC composite begins densification at an onset sintering temperature of 1503 K, which is 500 K lower than TaC. It also exhibits enhanced densification by inhibiting grain growth at sintering temperatures up to 2173 K, therefore resulting in a relative density of 98% compared with 80% for TaC. These results show a promising guideline from which ceramic additions can be chosen to enhance the densification and functionality of ultrahigh‐temperature ceramics.

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Section: Introductionmentioning

confidence: 99%

Densification and Fracture Responses of (Ta_1−xW_x)C–WC Composites

et al. 2022

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Thermal Spraying of Ultra-High Temperature Ceramics: A Review on Processing Routes and Performance

Lynam

Romero

et al. 2022

J Therm Spray Tech

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Ultra-high temperature ceramics (UHTCs) are materials defined as having melting points over 3000 °C and withstand temperatures beyond 2000 °C without losing functionality. As service environments become even more extreme, such materials will be needed for the next generation of aeronautic vehicles. Whether it is atmospheric re-entry or sustained hypersonic flight, materials with resistance to extreme temperature will be in demand. Due to the size and shape limitations encountered by current processing methods of bulk UHTCs research of UHTC coatings, specifically thermal spray UHTC coatings, is accelerating. This paper first presents a general summary of UHTC properties, followed by a comprehensive summary of the processing routes and microstructures of current UHTC thermal spray coatings. Then, a detailed review of the oxidation and ablation resistance of UHTC thermal spray coatings is outlined. Finally, potential avenues for the development of new UHTC coating compositions are explored.

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Preparation and infrared emissivity of metal borides(metal=V,Mo,Fe) and MnO2 co-doped NiCr2O4 coatings

Zeng

Liu

et al. 2022

Ceramics International

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Relationship analysis on particle-coating-ablation property of UHTC coatings fabricated by plasma spray technique

Cited by 9 publications

References 26 publications

Densification and Fracture Responses of (Ta_1−xW_x)C–WC Composites

Densification and Fracture Responses of (Ta_1−xW_x)C–WC Composites

Thermal Spraying of Ultra-High Temperature Ceramics: A Review on Processing Routes and Performance

Preparation and infrared emissivity of metal borides(metal=V,Mo,Fe) and MnO2 co-doped NiCr2O4 coatings

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Relationship analysis on particle-coating-ablation property of UHTC coatings fabricated by plasma spray technique

Cited by 9 publications

References 26 publications

Densification and Fracture Responses of (Ta1−xWx)C–WC Composites

Densification and Fracture Responses of (Ta1−xWx)C–WC Composites

Thermal Spraying of Ultra-High Temperature Ceramics: A Review on Processing Routes and Performance

Preparation and infrared emissivity of metal borides(metal=V,Mo,Fe) and MnO2 co-doped NiCr2O4 coatings

Contact Info

Product

Resources

About

Densification and Fracture Responses of (Ta_1−xW_x)C–WC Composites

Densification and Fracture Responses of (Ta_1−xW_x)C–WC Composites