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Tantalum-hafnium ceramic nano-powder containing whiskers and preparation method thereof
The invention belongs to the technical field of ultra-high-temperature ceramics, and particularly relates to whisker-containing tantalum-hafnium ceramic nano-powder and a preparation method thereof. According to the preparation method, HfCl4 and TaCl5 are used as an Hf source and a Ta source, and the Hf source and the Ta source and the organic carbon source are used for preparing the precursor containing Hf, Ta and C through a sol-gel method, so that raw materials can be mixed in an atomic scale, and subsequent reaction is facilitated. And the precursor is subjected to a carbon thermal reduction reaction to obtain the tantalum-hafnium ceramic nano-powder (Ta4HfC5) containing the whiskers. The preparation process is simple, and the tantalum-hafnium ceramic nano-powder contains a special whisker structure. The preparation method provided by the invention has the advantages of simple and easily available raw materials, simple method, easy operation and mild reaction conditions.
本发明属于超高温陶瓷技术领域，具体涉及一种含晶须的钽铪陶瓷纳米粉体及其制备方法。本发明利用HfCl4、TaCl5作为Hf源、Ta源，和有机碳源通过溶胶凝胶法制备含Hf、Ta、C的前驱体，可以使原料间达到原子尺度的混合，有利于后续反应的进行。前驱体再经碳热还原反应得到含晶须的钽铪陶瓷纳米粉体(Ta4HfC5)，制备工艺简单且含晶须特殊结构。本发明提供的制备方法具有原料简单易得，方法简单，易操作，反应条件温和的优点。
Tantalum-hafnium ceramic nano-powder containing whiskers and preparation method thereof
The invention belongs to the technical field of ultra-high-temperature ceramics, and particularly relates to whisker-containing tantalum-hafnium ceramic nano-powder and a preparation method thereof. According to the preparation method, HfCl4 and TaCl5 are used as an Hf source and a Ta source, and the Hf source and the Ta source and the organic carbon source are used for preparing the precursor containing Hf, Ta and C through a sol-gel method, so that raw materials can be mixed in an atomic scale, and subsequent reaction is facilitated. And the precursor is subjected to a carbon thermal reduction reaction to obtain the tantalum-hafnium ceramic nano-powder (Ta4HfC5) containing the whiskers. The preparation process is simple, and the tantalum-hafnium ceramic nano-powder contains a special whisker structure. The preparation method provided by the invention has the advantages of simple and easily available raw materials, simple method, easy operation and mild reaction conditions.
本发明属于超高温陶瓷技术领域，具体涉及一种含晶须的钽铪陶瓷纳米粉体及其制备方法。本发明利用HfCl4、TaCl5作为Hf源、Ta源，和有机碳源通过溶胶凝胶法制备含Hf、Ta、C的前驱体，可以使原料间达到原子尺度的混合，有利于后续反应的进行。前驱体再经碳热还原反应得到含晶须的钽铪陶瓷纳米粉体(Ta4HfC5)，制备工艺简单且含晶须特殊结构。本发明提供的制备方法具有原料简单易得，方法简单，易操作，反应条件温和的优点。
Tantalum-hafnium ceramic nano-powder containing whiskers and preparation method thereof
一种含晶须的钽铪陶瓷纳米粉体及其制备方法
LI RONG (Autor:in) / ZHANG YAQI (Autor:in) / ZHEN QIANG (Autor:in) / LUO WENJING (Autor:in)
26.01.2024
Patent
Elektronische Ressource
Chinesisch
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