Exploring superhard materials is of great significance in materials research. Ternary B-C-N superhard compounds exhibit a superior thermal stability to diamond, with hardness surpassing cubic boron nitride. However, synthesizing cubic B-C-N compounds is challenging, and few studies have been reported on their high-temperature oxidation resistance, impeding their potential applications. In this study, cubic B-C-N compounds (c-BCN) were synthesized using the high-pressure high-temperature synthesis method at 10 GPa and 1530 °C, half the reported pressure and one-quarter lower than the reported temperature. The thermal stability of the obtained c-BCN compound was examined. The results indicated that the air oxidation temperature of c-BCN was as high as 1200 °C, suitable for high-speed cutting of hardened steels. This study provided a production method of cubic B-C-N superhard compounds and extended their potential applications to milling/machining.
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17 February 2025
Research Article|
February 18 2025
High-pressure high-temperature synthesis of cubic B-C-N compounds with high thermal stability
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Baoyin Xu
;
Baoyin Xu
(Investigation, Validation, Writing – original draft)
1
State Key Laboratory of Superhard Materials, College of Physics, Jilin University
, Changchun, Jilin 130012, China
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Yue Zhou;
Yue Zhou
(Investigation, Validation)
1
State Key Laboratory of Superhard Materials, College of Physics, Jilin University
, Changchun, Jilin 130012, China
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Yaqi She;
Yaqi She
(Investigation, Validation)
1
State Key Laboratory of Superhard Materials, College of Physics, Jilin University
, Changchun, Jilin 130012, China
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Zhanhui Ding
;
Zhanhui Ding
a)
(Funding acquisition, Investigation, Project administration, Supervision, Writing – review & editing)
1
State Key Laboratory of Superhard Materials, College of Physics, Jilin University
, Changchun, Jilin 130012, China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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Yongfeng Li
;
Yongfeng Li
(Writing – review & editing)
1
State Key Laboratory of Superhard Materials, College of Physics, Jilin University
, Changchun, Jilin 130012, China
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Bin Yao
;
Bin Yao
(Validation, Writing – review & editing)
1
State Key Laboratory of Superhard Materials, College of Physics, Jilin University
, Changchun, Jilin 130012, China
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Hong-an Ma
;
Hong-an Ma
a)
(Conceptualization, Resources, Writing – review & editing)
1
State Key Laboratory of Superhard Materials, College of Physics, Jilin University
, Changchun, Jilin 130012, China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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Hongdong Li
;
Hongdong Li
(Methodology)
1
State Key Laboratory of Superhard Materials, College of Physics, Jilin University
, Changchun, Jilin 130012, China
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Yucheng Lan
Yucheng Lan
a)
(Conceptualization, Methodology, Validation, Writing – review & editing)
2
Department of Physics and Engineering Physics, Morgan State University
, Baltimore, Maryland 21251, USA
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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Baoyin Xu
1
Yue Zhou
1
Yaqi She
1
Zhanhui Ding
1,a)
Yongfeng Li
1
Bin Yao
1
Hong-an Ma
1,a)
Hongdong Li
1
Yucheng Lan
2,a)
1
State Key Laboratory of Superhard Materials, College of Physics, Jilin University
, Changchun, Jilin 130012, China
2
Department of Physics and Engineering Physics, Morgan State University
, Baltimore, Maryland 21251, USA
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
Appl. Phys. Lett. 126, 071902 (2025)
Article history
Received:
November 27 2024
Accepted:
January 17 2025
Citation
Baoyin Xu, Yue Zhou, Yaqi She, Zhanhui Ding, Yongfeng Li, Bin Yao, Hong-an Ma, Hongdong Li, Yucheng Lan; High-pressure high-temperature synthesis of cubic B-C-N compounds with high thermal stability. Appl. Phys. Lett. 17 February 2025; 126 (7): 071902. https://doi.org/10.1063/5.0250854
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