Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-entropy carbide-high-entropy boride multiphase ceramic precursor, multiphase nano ceramic powder and preparation method of high-entropy carbide-high-entropy boride multiphase ceramic precursor and multiphase nano ceramic powder
The invention discloses a high-entropy carbide-high-entropy boride multiphase ceramic precursor, multiphase nano ceramic powder and a preparation method, the precursor comprises a B element, a C element and at least four of Ti, Zr, Hf, V, Nb, Ta, Mo and W elements, and the mole number of each metal element accounts for 5-35% of the total mole number of precursor metal; the precursor is cracked under vacuum or inert atmosphere protection under normal pressure to generate the high-entropy carbide-high-entropy boride composite ceramic nano-powder. Elements in the high-entropy carbide-high-entropy boride nano ceramic powder are uniformly distributed in a molecular level, the average particle size of the nano ceramic powder is not greater than 500nm, and the O impurity content is not greater than 1wt%; the molar ratio of the element B to the element C in the nano powder is (1: 19)-(38: 1); the nano-powder further contains at least four of metal elements of Ti, Zr, Hf, V, Nb, Ta, Mo and W.
本发明公开一种高熵碳化物‑高熵硼化物复相陶瓷前驱体及复相纳米陶瓷粉体及制备方法，所述前驱体包括B元素和C元素和Ti、Zr、Hf、V、Nb、Ta、Mo、W元素中的至少4种，各金属元素的摩尔数均占前驱体金属总摩尔数的5～35％；所述前驱体在真空下或惰性气氛保护中常压下裂解后可生成高熵碳化物‑高熵硼化物复相陶瓷纳米粉体。本发明的高熵碳化物‑高熵硼化物纳米陶瓷粉体中各元素呈分子级均匀分布，且纳米粉体的平均颗粒尺寸不大于500nm，O杂质含量的不大于1wt％；所述纳米粉体中B元素和C元素的摩尔比为1：19～38：1；且纳米粉体还含有Ti、Zr、Hf、V、Nb、Ta、Mo、W金属元素中的至少4种。
High-entropy carbide-high-entropy boride multiphase ceramic precursor, multiphase nano ceramic powder and preparation method of high-entropy carbide-high-entropy boride multiphase ceramic precursor and multiphase nano ceramic powder
The invention discloses a high-entropy carbide-high-entropy boride multiphase ceramic precursor, multiphase nano ceramic powder and a preparation method, the precursor comprises a B element, a C element and at least four of Ti, Zr, Hf, V, Nb, Ta, Mo and W elements, and the mole number of each metal element accounts for 5-35% of the total mole number of precursor metal; the precursor is cracked under vacuum or inert atmosphere protection under normal pressure to generate the high-entropy carbide-high-entropy boride composite ceramic nano-powder. Elements in the high-entropy carbide-high-entropy boride nano ceramic powder are uniformly distributed in a molecular level, the average particle size of the nano ceramic powder is not greater than 500nm, and the O impurity content is not greater than 1wt%; the molar ratio of the element B to the element C in the nano powder is (1: 19)-(38: 1); the nano-powder further contains at least four of metal elements of Ti, Zr, Hf, V, Nb, Ta, Mo and W.
本发明公开一种高熵碳化物‑高熵硼化物复相陶瓷前驱体及复相纳米陶瓷粉体及制备方法，所述前驱体包括B元素和C元素和Ti、Zr、Hf、V、Nb、Ta、Mo、W元素中的至少4种，各金属元素的摩尔数均占前驱体金属总摩尔数的5～35％；所述前驱体在真空下或惰性气氛保护中常压下裂解后可生成高熵碳化物‑高熵硼化物复相陶瓷纳米粉体。本发明的高熵碳化物‑高熵硼化物纳米陶瓷粉体中各元素呈分子级均匀分布，且纳米粉体的平均颗粒尺寸不大于500nm，O杂质含量的不大于1wt％；所述纳米粉体中B元素和C元素的摩尔比为1：19～38：1；且纳米粉体还含有Ti、Zr、Hf、V、Nb、Ta、Mo、W金属元素中的至少4种。
High-entropy carbide-high-entropy boride multiphase ceramic precursor, multiphase nano ceramic powder and preparation method of high-entropy carbide-high-entropy boride multiphase ceramic precursor and multiphase nano ceramic powder
一种高熵碳化物-高熵硼化物复相陶瓷前驱体及复相纳米陶瓷粉体及制备方法
YE LI (Autor:in) / ZHAO TONG (Autor:in) / SONG IL-HYEONG (Autor:in) / GONG WEILU (Autor:in) / LI JIA (Autor:in) / ZHANG YONGQING (Autor:in) / HAN WEIJIAN (Autor:in)
12.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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