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High-throughput preparation method of nearly-fully-compact refractory metal carbide high-entropy ceramic
The invention discloses a high-throughput preparation method of nearly-fully-compact refractory metal carbide high-entropy ceramic, and belongs to the field of powder metallurgy. The method comprises the following steps: uniformly mixing a series of refractory metal carbide high-entropy ceramic raw materials; stacking a series of mixed raw materials with different components; and performing high-pressure sintering to obtain a multi-component series refractory metal carbide high-entropy ceramic compact block. According to the method, raw material layered stacking and high-pressure sintering strategies are combined, samples with different components are separated by using isolating membranes which do not participate in reaction, and a plurality of continuous independent sintering spaces which are distributed in the gravity direction and have consistent local sintering conditions are provided in the sintering process; by combining high-pressure sintering, the sintering temperature required by near full compactness (the compactness is greater than or equal to 98%) of the refractory metal carbide high-entropy ceramic is reduced, and the problems of high temperature, low compactness and low preparation efficiency of various components in preparation of the refractory metal carbide high-entropy ceramic are solved; the method is of great significance to rapid screening of refractory metal carbide high-entropy ceramic components capable of forming a single-phase solid solution and batch acquisition of performance data.
一种近全致密难熔金属碳化物高熵陶瓷的高通量制备方法属于粉末冶金领域。本发明包括：系列难熔金属碳化物高熵陶瓷原料的均匀混合；系列不同成分混合原料的层叠处理；高压烧结得到多成分系列难熔金属碳化物高熵陶瓷致密块材。本发明结合原料层状堆叠和高压烧结策略，利用不参与反应的隔离膜分离不同成分的样品，在烧结过程提供多个沿重力方向分布的连续、局部烧结条件一致的独立烧结空间，结合高压烧结降低难熔金属碳化物高熵陶瓷近全致密(致密度≥98％)所需烧结温度，克服制备难熔金属碳化物高熵陶瓷温度高、致密度低、多种成分制备效率低的问题，对可形成单相固溶体的难熔金属碳化物高熵陶瓷组元的快速筛选及性能数据的批量获取有重要意义。
High-throughput preparation method of nearly-fully-compact refractory metal carbide high-entropy ceramic
The invention discloses a high-throughput preparation method of nearly-fully-compact refractory metal carbide high-entropy ceramic, and belongs to the field of powder metallurgy. The method comprises the following steps: uniformly mixing a series of refractory metal carbide high-entropy ceramic raw materials; stacking a series of mixed raw materials with different components; and performing high-pressure sintering to obtain a multi-component series refractory metal carbide high-entropy ceramic compact block. According to the method, raw material layered stacking and high-pressure sintering strategies are combined, samples with different components are separated by using isolating membranes which do not participate in reaction, and a plurality of continuous independent sintering spaces which are distributed in the gravity direction and have consistent local sintering conditions are provided in the sintering process; by combining high-pressure sintering, the sintering temperature required by near full compactness (the compactness is greater than or equal to 98%) of the refractory metal carbide high-entropy ceramic is reduced, and the problems of high temperature, low compactness and low preparation efficiency of various components in preparation of the refractory metal carbide high-entropy ceramic are solved; the method is of great significance to rapid screening of refractory metal carbide high-entropy ceramic components capable of forming a single-phase solid solution and batch acquisition of performance data.
一种近全致密难熔金属碳化物高熵陶瓷的高通量制备方法属于粉末冶金领域。本发明包括：系列难熔金属碳化物高熵陶瓷原料的均匀混合；系列不同成分混合原料的层叠处理；高压烧结得到多成分系列难熔金属碳化物高熵陶瓷致密块材。本发明结合原料层状堆叠和高压烧结策略，利用不参与反应的隔离膜分离不同成分的样品，在烧结过程提供多个沿重力方向分布的连续、局部烧结条件一致的独立烧结空间，结合高压烧结降低难熔金属碳化物高熵陶瓷近全致密(致密度≥98％)所需烧结温度，克服制备难熔金属碳化物高熵陶瓷温度高、致密度低、多种成分制备效率低的问题，对可形成单相固溶体的难熔金属碳化物高熵陶瓷组元的快速筛选及性能数据的批量获取有重要意义。
High-throughput preparation method of nearly-fully-compact refractory metal carbide high-entropy ceramic
一种近全致密难熔金属碳化物高熵陶瓷的高通量制备方法
CHANG HEQIANG (author) / SONG XIAOYAN (author) / HU QIANG (author) / WANG YULI (author) / HOU CHAO (author) / LYU HAO (author) / LIU XUEMEI (author) / WANG HAIBIN (author)
2024-12-27
Patent
Electronic Resource
Chinese
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