TY - JOUR

T1 - Study of Formation of Solid Solutions of Lithium in Iridium

AU - Lozanov, V. V.

AU - Golosov, M. A.

AU - Valiaev, D. V.

AU - Nikiforov, Ya A.

AU - Utkin, A. V.

AU - Baklanova, N. I.

N1 - The work was supported by the Russian Science Foundation, grant no. 24-79-00183. Study of Formation of Solid Solutions of Lithium in Iridium / V. V. Lozanov, M. A. Golosov, D. V. Valiaev [et al.] // Russian Journal of Inorganic Chemistry. – 2025. – Vol. 70, No. 6. – P. 833-840. – DOI 10.1134/S0036023625601576.

PY - 2025/8/19

Y1 - 2025/8/19

N2 - Abstract: The interaction in the Li–Ir system using Li3N as a lithium source was studied depending on the temperature, heat treatment time, and total pressure in the system. Using X-ray powder diffraction, it was shown that heat treatment of a powder mixture of Li3N and Ir in a graphite or BN crucible in the temperature range of 800–1200°C leads to the formation of a substitution solid solution of Ir(Li), with the lithium content decreasing with increasing temperature, heat treatment time and decreasing total pressure in the system. The maximum lithium content in iridium reached 6.2 at %. It was shown that the use of a closed BN container increases the yield of the Ir(Li) solid solution. The use of graphite or BN crucibles prevents the formation of intermetallic compounds of the Li–Ir system.

AB - Abstract: The interaction in the Li–Ir system using Li3N as a lithium source was studied depending on the temperature, heat treatment time, and total pressure in the system. Using X-ray powder diffraction, it was shown that heat treatment of a powder mixture of Li3N and Ir in a graphite or BN crucible in the temperature range of 800–1200°C leads to the formation of a substitution solid solution of Ir(Li), with the lithium content decreasing with increasing temperature, heat treatment time and decreasing total pressure in the system. The maximum lithium content in iridium reached 6.2 at %. It was shown that the use of a closed BN container increases the yield of the Ir(Li) solid solution. The use of graphite or BN crucibles prevents the formation of intermetallic compounds of the Li–Ir system.

KW - iridium

KW - lithium nitride

KW - substitution solid solutions

UR - https://www.mendeley.com/catalogue/e6905d47-768d-38f6-a145-71c25dd099f3/

UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105013742808&origin=inward

UR - https://elibrary.ru/item.asp?id=82762063

U2 - 10.1134/S0036023625601576

DO - 10.1134/S0036023625601576

M3 - Article

VL - 70

SP - 833

EP - 840

JO - Russian Journal of Inorganic Chemistry

JF - Russian Journal of Inorganic Chemistry

SN - 0036-0236

IS - 6

ER -