汽化
化学
热重分析
六方晶系
化学计量学
形态学(生物学)
差热分析
氩
分析化学(期刊)
粒子(生态学)
化学工程
结晶学
无机化学
物理化学
衍射
物理
地质学
工程类
光学
海洋学
有机化学
生物
遗传学
色谱法
作者
Ryosuke Maki,Shunta Matsumura,Sota Kida,T. Maeda,Hatsuo Taira,Yoshihiro Kusano
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2022-02-16
卷期号:61 (8): 3493-3497
被引量:1
标识
DOI:10.1021/acs.inorgchem.1c03424
摘要
This paper describes the formation mechanism of monophasic Al3BC3 powder with hexagonal plate-like morphology using Al, B4C, and C powders in a stoichiometric ratio. For the synthesis of pure Al3BC3 by the conventional solid-state reaction method, it is important to avoid contamination from the starting powders. Thermogravimetry-differential thermal analysis curves and quantitative analysis by inductively coupled plasma-atomic emission spectroscopy revealed that there was no vaporization of the powder mixture during heating up to 1470 °C in a high-purity argon atmosphere. We found that the phases and Al3BC3 particle morphology after heating at 1800 °C strongly depended on the mixing conditions. In the case of a two-step process (remixing and reheating the sample), particles with random morphology were observed. On the other hand, well-faceted Al3BC3 particles were predominantly formed in a one-step process that involved heating after ball-milling for 24 h.
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