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Preparation method of rod-like binary (ZrxHf (1-x)) B2 ceramic powder with adjustable length-diameter ratio
The invention discloses a preparation method of rod-like binary (ZrxHf (1-x)) B2 ceramic powder with an adjustable length-diameter ratio, which comprises the following steps: by adopting a sol-gel-carbon thermal reduction method, taking boric acid, sorbitol, zirconium n-propoxide and hafnium n-propoxide as raw materials, forming gel in an acetic acid system, crushing into powder, and calcining in a high-temperature tube furnace to obtain a target product. According to the method, the preparation process is simple, the reaction process is easy to control, the production period is short, the prepared rod-like binary (ZrxHf (1-x)) B2 ceramic powder has high purity and good microstructure, and the mechanical property of a sintered body can be enhanced in the subsequent forming process.
本发明公开了一种长径比可调的棒状二元(ZrxHf(1‑x))B2陶瓷粉体的制备方法，是采用溶胶凝胶‑碳热还原的方法，以硼酸、山梨醇、正丙醇锆、正丙醇铪为原料，在乙酸体系中形成凝胶并破碎成粉末，再放入高温管式炉中煅烧即可制得目标产物。本发明的方法不仅制备过程简单、反应过程易控制、生产周期短，而且所制备的棒状二元(ZrxHf(1‑x))B2陶瓷粉体具有较高的纯度、良好的微观形貌，能够在后续成型过程中增强烧结体的力学性能。
Preparation method of rod-like binary (ZrxHf (1-x)) B2 ceramic powder with adjustable length-diameter ratio
The invention discloses a preparation method of rod-like binary (ZrxHf (1-x)) B2 ceramic powder with an adjustable length-diameter ratio, which comprises the following steps: by adopting a sol-gel-carbon thermal reduction method, taking boric acid, sorbitol, zirconium n-propoxide and hafnium n-propoxide as raw materials, forming gel in an acetic acid system, crushing into powder, and calcining in a high-temperature tube furnace to obtain a target product. According to the method, the preparation process is simple, the reaction process is easy to control, the production period is short, the prepared rod-like binary (ZrxHf (1-x)) B2 ceramic powder has high purity and good microstructure, and the mechanical property of a sintered body can be enhanced in the subsequent forming process.
本发明公开了一种长径比可调的棒状二元(ZrxHf(1‑x))B2陶瓷粉体的制备方法，是采用溶胶凝胶‑碳热还原的方法，以硼酸、山梨醇、正丙醇锆、正丙醇铪为原料，在乙酸体系中形成凝胶并破碎成粉末，再放入高温管式炉中煅烧即可制得目标产物。本发明的方法不仅制备过程简单、反应过程易控制、生产周期短，而且所制备的棒状二元(ZrxHf(1‑x))B2陶瓷粉体具有较高的纯度、良好的微观形貌，能够在后续成型过程中增强烧结体的力学性能。
Preparation method of rod-like binary (ZrxHf (1-x)) B2 ceramic powder with adjustable length-diameter ratio
一种长径比可调的棒状二元(ZrxHf(1-x))B2陶瓷粉体的制备方法
HU XIAOYE (author) / LI KEWEI (author) / HUANG ZHULIN (author) / LI XINYANG (author) / YUAN JIEYAN (author) / LI MING (author) / LI YUE (author)
2023-09-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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