Effect of Lithium Nitride on Chemical Interaction of Hafnium and Tantalum Diborides with Iridium

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Effect of Lithium Nitride on Chemical Interaction of Hafnium and Tantalum Diborides with Iridium. / Lozanov, Victor V.; Nikiforov, Yaroslav A.; Golosov, Mikhail A. et al.

In: Journal of the American Ceramic Society, Vol. 109, No. 7, e70985, 07.2026.

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

BibTeX

@article{225af5a0760a4ecfaec2407e51cb997f,

title = "Effect of Lithium Nitride on Chemical Interaction of Hafnium and Tantalum Diborides with Iridium",

abstract = "The primary products formed by the interaction of hafnium and tantalum diborides with lithium nitride over the temperature range of 800°C–1400°C are solid solution phases based on metal monoborides and hexagonal boron nitride. Density functional theory calculations indicate that nitrogen and oxygen atoms stabilize the crystal lattices of metal monoborides. In the reaction products of equimolar multicomponent HfB2–Li3N–Ir system, metal monoboride and boron nitride phases coexist with the iridium-containing compounds Hf2Ir5B2 and HfIr3Bx. In the equimolar TaB2–Li3N–Ir system, TaB and BN phases coexist with TaIr3. X-ray diffraction analysis does not reveal the formation of iridium borides or boron-rich ternary compounds, such as HfIr3B4 or TaIr2B2.",

keywords = "borides, iridium-containing intermetallics, lithium nitride, solid solutions",

author = "Lozanov, {Victor V.} and Nikiforov, {Yaroslav A.} and Golosov, {Mikhail A.} and Gerasimov, {Evgeny Yu} and Utkin, {Aleksei V.} and Titov, {Anatoly T.}",

note = "The authors are grateful to Dr. O.A. Podgornova for help with XRD and Prof. Dr. Sci. Natalya I. Baklanova for useful comments and recommendations. This work was supported by the Russian Science Foundation (project no. 24-79-00183). HRTEM work was supported by the budget project of the Ministry of Science and Higher Education of the Russian Federation for Boreskov Institute of Catalysis (project no. FWUR-2024-0032).",

year = "2026",

month = jul,

doi = "10.1111/jace.70985",

language = "English",

volume = "109",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

publisher = "Wiley-Blackwell",

number = "7",

}

RIS

TY - JOUR

T1 - Effect of Lithium Nitride on Chemical Interaction of Hafnium and Tantalum Diborides with Iridium

AU - Lozanov, Victor V.

AU - Nikiforov, Yaroslav A.

AU - Golosov, Mikhail A.

AU - Gerasimov, Evgeny Yu

AU - Utkin, Aleksei V.

AU - Titov, Anatoly T.

N1 - The authors are grateful to Dr. O.A. Podgornova for help with XRD and Prof. Dr. Sci. Natalya I. Baklanova for useful comments and recommendations. This work was supported by the Russian Science Foundation (project no. 24-79-00183). HRTEM work was supported by the budget project of the Ministry of Science and Higher Education of the Russian Federation for Boreskov Institute of Catalysis (project no. FWUR-2024-0032).

PY - 2026/7

Y1 - 2026/7

N2 - The primary products formed by the interaction of hafnium and tantalum diborides with lithium nitride over the temperature range of 800°C–1400°C are solid solution phases based on metal monoborides and hexagonal boron nitride. Density functional theory calculations indicate that nitrogen and oxygen atoms stabilize the crystal lattices of metal monoborides. In the reaction products of equimolar multicomponent HfB2–Li3N–Ir system, metal monoboride and boron nitride phases coexist with the iridium-containing compounds Hf2Ir5B2 and HfIr3Bx. In the equimolar TaB2–Li3N–Ir system, TaB and BN phases coexist with TaIr3. X-ray diffraction analysis does not reveal the formation of iridium borides or boron-rich ternary compounds, such as HfIr3B4 or TaIr2B2.

AB - The primary products formed by the interaction of hafnium and tantalum diborides with lithium nitride over the temperature range of 800°C–1400°C are solid solution phases based on metal monoborides and hexagonal boron nitride. Density functional theory calculations indicate that nitrogen and oxygen atoms stabilize the crystal lattices of metal monoborides. In the reaction products of equimolar multicomponent HfB2–Li3N–Ir system, metal monoboride and boron nitride phases coexist with the iridium-containing compounds Hf2Ir5B2 and HfIr3Bx. In the equimolar TaB2–Li3N–Ir system, TaB and BN phases coexist with TaIr3. X-ray diffraction analysis does not reveal the formation of iridium borides or boron-rich ternary compounds, such as HfIr3B4 or TaIr2B2.

KW - borides

KW - iridium-containing intermetallics

KW - lithium nitride

KW - solid solutions

UR - https://www.scopus.com/pages/publications/105043714736

UR - https://www.mendeley.com/catalogue/bb47287f-4c10-3e52-aea3-1035e156a2de/

U2 - 10.1111/jace.70985

DO - 10.1111/jace.70985

M3 - Article

VL - 109

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

IS - 7

M1 - e70985

ER -

ID: 80164748