Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Quentabasic high-entropy boride ceramic powder material as well as preparation method and application thereof
The invention belongs to the technical field of high-entropy non-oxide ceramics, and relates to a quinary high-entropy boride ceramic powder material as well as a preparation method and application thereof. The preparation method comprises the following steps: adding chlorides of five transition metal elements into a mixed solution of ethanol and acetylacetone, reacting, adding a carbon source and a boron source, and continuously reacting to obtain a high-entropy boride liquid-phase precursor; and performing two-stage drying and two-stage cracking on the high-entropy boride liquid-phase precursor to obtain the high-entropy boride ceramic powder. The prepared high-entropy boride ceramic powder has high configuration entropy, high element distribution uniformity, a uniform hexagonal plate-shaped single crystal structure and good sintering activity, and the preparation method has the advantages of low cost, simplicity in operation, low operation temperature, short reaction time, low equipment requirement and the like; and the method is suitable for large-scale industrial production and is green and environment-friendly.
本发明属于高熵非氧化物陶瓷技术领域，涉及一种五元高熵硼化物陶瓷粉体材料及其制备方法与应用。本发明通过将五种过渡金属元素的氯化物加入乙醇和乙酰丙酮的混合溶液中，反应后，加入碳源和硼源，继续反应得到高熵硼化物液相前驱体；所述高熵硼化物液相前驱体经二段干燥、二段裂解得到高熵硼化物陶瓷粉体。所制备得到的高熵硼化物陶瓷粉体具有高构型熵、高元素分布均匀性、均匀的六方板状单晶结构和良好的烧结活性，并且制备方法具有成本低、操作简单、操作温度低、反应时间短、设备要求低等优点，适合进行大规模工业生产且绿色环保的特点。
Quentabasic high-entropy boride ceramic powder material as well as preparation method and application thereof
The invention belongs to the technical field of high-entropy non-oxide ceramics, and relates to a quinary high-entropy boride ceramic powder material as well as a preparation method and application thereof. The preparation method comprises the following steps: adding chlorides of five transition metal elements into a mixed solution of ethanol and acetylacetone, reacting, adding a carbon source and a boron source, and continuously reacting to obtain a high-entropy boride liquid-phase precursor; and performing two-stage drying and two-stage cracking on the high-entropy boride liquid-phase precursor to obtain the high-entropy boride ceramic powder. The prepared high-entropy boride ceramic powder has high configuration entropy, high element distribution uniformity, a uniform hexagonal plate-shaped single crystal structure and good sintering activity, and the preparation method has the advantages of low cost, simplicity in operation, low operation temperature, short reaction time, low equipment requirement and the like; and the method is suitable for large-scale industrial production and is green and environment-friendly.
本发明属于高熵非氧化物陶瓷技术领域，涉及一种五元高熵硼化物陶瓷粉体材料及其制备方法与应用。本发明通过将五种过渡金属元素的氯化物加入乙醇和乙酰丙酮的混合溶液中，反应后，加入碳源和硼源，继续反应得到高熵硼化物液相前驱体；所述高熵硼化物液相前驱体经二段干燥、二段裂解得到高熵硼化物陶瓷粉体。所制备得到的高熵硼化物陶瓷粉体具有高构型熵、高元素分布均匀性、均匀的六方板状单晶结构和良好的烧结活性，并且制备方法具有成本低、操作简单、操作温度低、反应时间短、设备要求低等优点，适合进行大规模工业生产且绿色环保的特点。
Quentabasic high-entropy boride ceramic powder material as well as preparation method and application thereof
一种五元高熵硼化物陶瓷粉体材料及其制备方法与应用
DONG ZHIJUN (Autor:in) / CHENG LONGYU (Autor:in) / LI XUANKE (Autor:in) / TIAN YONGSHENG (Autor:in) / LI BAOLIU (Autor:in) / ZHU HUI (Autor:in) / SAKINO (Autor:in) / LI YANJUN (Autor:in)
02.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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