Conditions for the formation of a solid solution in the (Ti, Zr, Hf)B2, (Zr, Hf, Nb)B2, and (Zr, Hf, Ta)B2 systems

被引：0

作者：

Vedel, D. V. ^{[1
]}

Mazur, P. V. ^{[1
]}

Grigoriev, O. M. ^{[1
]}

Kozak, I. V. ^{[1
]}

Melakh, L. M. ^{[1
]}

Naumenko, M. P. ^{[2
]}

Karpets, M. V. ^{[2
]}

Skoryk, M. A. ^{[3
]}

Kozin, R. V. ^{[4
]}

Zavdoveev, A. V. ^{[4
]}

机构：

[1] Natl Acad Sci Ukraine, Frantsevich Inst Problems Mat Sci, Kyiv, Ukraine

[2] Minist Educ & Sci Ukraine, Ukraine Igor Sikorsky Kyiv Polytech, Natl Tech Univ, Kyiv, Ukraine

[3] Natl Acad Sci Ukraine, Kurdyumov Inst Met Phys, Kyiv, Ukraine

[4] Natl Acad Sci Ukraine, Paton Elect Welding Inst, Kyiv, Ukraine

来源：

MATERIALS SCIENCE | 2025年

关键词：

Ultra high-temperature ceramics; Diborides; Solid solutions; MECHANICAL-PROPERTIES; OXIDATION RESISTANCE; DENSIFICATION; CERAMICS; MICROSTRUCTURE; DISORDER; DIBORIDE; POWDERS;

D O I：

10.1007/s11003-025-00937-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The process of formation of solid solutions of the (Ti, Zr, Hf)B2, (Zr, Hf, Nb)B2, and (Zr, Hf, Ta)B2 compositions was investigated. The heterophase microstructure consisting of a solid solution and inclusions based on HfB2 and TaB2 is formed. It is possible to increase diffusion processes and, as a result, increase the elements' solubility by increasing the densification temperature. The highest solubility is observed in the case of arc melting, when all components are in a liquid phase. However, for the (Zr, Hf, Ta)B2 composition, the TaB2 individual inclusions are formed, since the energy of TaB2 formation significantly differs from the energy of other components.

引用

页数：8

共 30 条

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