Influence of TiC content on microstructure and mechanical properties of (Ta, Ti)C ceramics

Xin Li; Lei Chen; Wen Zhang; Xuming Lv; Sjia Huo; Yujin Wang; Yu Zhou

doi:10.1016/j.ijrmhm.2022.106031

Influence of TiC content on microstructure and mechanical properties of (Ta, Ti)C ceramics

Xin Li
, Lei Chen^*
, Wen Zhang
, Xuming Lv
, Sjia Huo
, Yujin Wang
, Yu Zhou

^*Corresponding author for this work

Harbin Institute of Technology
Harbin Institute of Technology
Science and Technology on Particle Transport and Separation Laboratory

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

(Ta, Ti)C ceramics with different TiC contents have been fabricated by hot pressing using as-synthesized carbide powders via carbothermal reaction. The effect of TiC content on densification, microstructure and mechanical properties was investigated. All samples with adding TiC exhibit high relative density of >98%, and even the relative density can reach 99.6% when TiC content is 33 mol%. Besides enhancing sinterability, the average grain sizes of samples significantly become large in the range of 19.9–39.4 μm. (Ta_0.83Ti_0.17)C ceramic possesses an optimized combination of mechanical properties with a Vickers' hardness, flexural strength, Young's modulus and fracture toughness of 17.5 GPa, 306 MPa, 544 GPa and 3.7 MPa·m^1/2, respectively.

Original language	English
Article number	106031
Journal	International Journal of Refractory Metals and Hard Materials
Volume	110
DOIs	https://doi.org/10.1016/j.ijrmhm.2022.106031
State	Published - Jan 2023

Keywords

(ta, Ti)C
Mechanical properties
Microstructure
Solid solution

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10.1016/j.ijrmhm.2022.106031

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@article{4f76d901b50a40079037f29c571894f1,

title = "Influence of TiC content on microstructure and mechanical properties of (Ta, Ti)C ceramics",

abstract = "(Ta, Ti)C ceramics with different TiC contents have been fabricated by hot pressing using as-synthesized carbide powders via carbothermal reaction. The effect of TiC content on densification, microstructure and mechanical properties was investigated. All samples with adding TiC exhibit high relative density of >98\%, and even the relative density can reach 99.6\% when TiC content is 33 mol\%. Besides enhancing sinterability, the average grain sizes of samples significantly become large in the range of 19.9–39.4 μm. (Ta0.83Ti0.17)C ceramic possesses an optimized combination of mechanical properties with a Vickers' hardness, flexural strength, Young's modulus and fracture toughness of 17.5 GPa, 306 MPa, 544 GPa and 3.7 MPa·m1/2, respectively.",

keywords = "(ta, Ti)C, Mechanical properties, Microstructure, Solid solution",

author = "Xin Li and Lei Chen and Wen Zhang and Xuming Lv and Sjia Huo and Yujin Wang and Yu Zhou",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2023",

month = jan,

doi = "10.1016/j.ijrmhm.2022.106031",

language = "英语",

volume = "110",

journal = "International Journal of Refractory Metals and Hard Materials",

issn = "0263-4368",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Influence of TiC content on microstructure and mechanical properties of (Ta, Ti)C ceramics

AU - Li, Xin

AU - Chen, Lei

AU - Zhang, Wen

AU - Lv, Xuming

AU - Huo, Sjia

AU - Wang, Yujin

AU - Zhou, Yu

PY - 2023/1

Y1 - 2023/1

N2 - (Ta, Ti)C ceramics with different TiC contents have been fabricated by hot pressing using as-synthesized carbide powders via carbothermal reaction. The effect of TiC content on densification, microstructure and mechanical properties was investigated. All samples with adding TiC exhibit high relative density of >98%, and even the relative density can reach 99.6% when TiC content is 33 mol%. Besides enhancing sinterability, the average grain sizes of samples significantly become large in the range of 19.9–39.4 μm. (Ta0.83Ti0.17)C ceramic possesses an optimized combination of mechanical properties with a Vickers' hardness, flexural strength, Young's modulus and fracture toughness of 17.5 GPa, 306 MPa, 544 GPa and 3.7 MPa·m1/2, respectively.

AB - (Ta, Ti)C ceramics with different TiC contents have been fabricated by hot pressing using as-synthesized carbide powders via carbothermal reaction. The effect of TiC content on densification, microstructure and mechanical properties was investigated. All samples with adding TiC exhibit high relative density of >98%, and even the relative density can reach 99.6% when TiC content is 33 mol%. Besides enhancing sinterability, the average grain sizes of samples significantly become large in the range of 19.9–39.4 μm. (Ta0.83Ti0.17)C ceramic possesses an optimized combination of mechanical properties with a Vickers' hardness, flexural strength, Young's modulus and fracture toughness of 17.5 GPa, 306 MPa, 544 GPa and 3.7 MPa·m1/2, respectively.

KW - (ta, Ti)C

KW - Mechanical properties

KW - Microstructure

KW - Solid solution

UR - https://www.scopus.com/pages/publications/85140888379

U2 - 10.1016/j.ijrmhm.2022.106031

DO - 10.1016/j.ijrmhm.2022.106031

M3 - 文章

AN - SCOPUS:85140888379

SN - 0263-4368

VL - 110

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

M1 - 106031

ER -

Influence of TiC content on microstructure and mechanical properties of (Ta, Ti)C ceramics

Abstract

Keywords

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