金属钽的原位高温x射线衍射研究

IF 1.3 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Main Group Chemistry Pub Date : 2023-05-24 DOI:10.3233/mgc-220105

F. SI-Ahmed, A. Afir, A. Pialoux, Houria Chikh

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引用次数: 0

摘要

对金属钽在两种条件下的热行为进行了原位研究。实验是在石墨电阻高温x射线衍射仪中对钽球团进行逐步加热，“经过反应并在连续泵送或控制一氧化碳压力下”加热至2300 K。通过原位研究，热力学分析表明，Ta2O、Ta2O5(低温改性)和Ta2C的形成可能在293 ~ 2300 K之间进行，这与我们建立的反应机理一致。

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In situ high-temperature X-Ray diffraction study of tantalum metal

An in-situ thermal behavior study was conducted on the metallic tantalum under two conditions. The experimentation was carried out on tantalum pellets which were heated progressively “underwent reaction and under continuous pumping or under controlled monoxide pressure” in a graphite resistance high temperature X-ray diffractometer up to 2300 K. Through the in-situ study, a thermodynamic analysis showed that this involved the formation of Ta2O, Ta2O5 (low temperature modification) and Ta2C likely to be formed between 293 and 2300 K, in agreement with a reaction mechanism that we established to occur in four stages.

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来源期刊

Main Group Chemistry 化学-化学综合

CiteScore

2.00

自引率

26.70%

发文量

审稿时长

>12 weeks

期刊介绍： Main Group Chemistry is intended to be a primary resource for all chemistry, engineering, biological, and materials researchers in both academia and in industry with an interest in the elements from the groups 1, 2, 12–18, lanthanides and actinides. The journal is committed to maintaining a high standard for its publications. This will be ensured by a rigorous peer-review process with most articles being reviewed by at least one editorial board member. Additionally, all manuscripts will be proofread and corrected by a dedicated copy editor located at the University of Kentucky.