On the Melting of Boron Chalcogenides B6S and B6Se under Pressure

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Superhard Materials Pub Date : 2025-05-26 DOI:10.3103/S1063457625020091

V. L. Solozhenko

引用次数: 0

Abstract

Melting of new boron-rich chalcogenides, orthorhombic B₆S and B₆Se, has been studied at pressures up to 8 GPa using in situ electrical resistivity measurements. It was found that above 2.5 GPa both chalcogenides melt congruently, and the melting curves have a negative slope (‒61(5) K/GPa for B₆S and –80(2) K/GPa for B₆Se), indicating a higher density of the melts compared to the solid phases. The melting points at ambient pressure were estimated to be 2190(30) K for B₆S and 2347(12) K for B₆Se.

查看原文本刊更多论文

硫族硼B6S和B6Se在压力下熔化的研究

利用原位电阻率测量，研究了新的富硼硫族化合物B6S和B6Se在高达8gpa的压力下的熔融。结果表明，在2.5 GPa以上，两种硫族化物完全熔融，且熔融曲线斜率为负(B6S为-61 (5)K/GPa， B6Se为-80 (2)K/GPa)，表明熔体密度高于固相。在环境压力下，B6S的熔点估计为2190(30)K， B6Se的熔点估计为2347(12)K。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Superhard Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

1.80

自引率

66.70%

发文量

审稿时长

2 months

期刊介绍： Journal of Superhard Materials presents up-to-date results of basic and applied research on production, properties, and applications of superhard materials and related tools. It publishes the results of fundamental research on physicochemical processes of forming and growth of single-crystal, polycrystalline, and dispersed materials, diamond and diamond-like films; developments of methods for spontaneous and controlled synthesis of superhard materials and methods for static, explosive and epitaxial synthesis. The focus of the journal is large single crystals of synthetic diamonds; elite grinding powders and micron powders of synthetic diamonds and cubic boron nitride; polycrystalline and composite superhard materials based on diamond and cubic boron nitride; diamond and carbide tools for highly efficient metal-working, boring, stone-working, coal mining and geological exploration; articles of ceramic; polishing pastes for high-precision optics; precision lathes for diamond turning; technologies of precise machining of metals, glass, and ceramics. The journal covers all fundamental and technological aspects of synthesis, characterization, properties, devices and applications of these materials. The journal welcomes manuscripts from all countries in the English language.