Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing MAX-phase high-entropy ceramic material
The invention provides a method for preparing an MAX-phase high-entropy ceramic material. The method comprises the following steps: 1) preparing composite powder: mixing transition metal powder, transition metal hydride powder, corresponding transition metal carbide powder and aluminum powder to prepare the composite powder; 2) dispersing the composite powder obtained in the step 1) in a grinding aid, performing ball milling to obtain mixed slurry, performing vacuum drying, and sieving; (3) putting the mixed powder obtained in the step (2) into a steel mold, and carrying out pre-pressing forming to obtain a ceramic blank; and 4) placing the ceramic blank obtained in the step 3) in a graphite mold, and carrying out pressure sintering under a vacuum condition at a loading pressure of 45-55 MPa and a temperature of 1300-1500 DEG C to obtain the MAX-phase high-entropy ceramic. The invention also provides the MAX-phase high-entropy ceramic material prepared by the method, and the MAX-phase high-entropy ceramic material has excellent mechanical properties.
本发明提供了一种制备MAX相高熵陶瓷材料的方法，其包括如下步骤：1)配制复合粉末，将过渡金属粉末、过渡金属氢化物粉末、对应的过渡金属碳化物粉末以及铝粉进行混合配制复合粉末；2)将在步骤1)得到所述复合粉末分散于助磨剂中，进行球磨得到混合浆料，并进行真空干燥，并进行过筛；3)将步骤2)得到的混合粉末置于钢模中，进行预压成形，得到陶瓷素胚；4)将步骤3)得到陶瓷素胚置于将石墨模具中，在真空条件下，在45～55MPa的加载压力下，1300～1500℃的温度下进行压力烧结，即得到MAX相高熵陶瓷。本发明还提供一种通过所述方法制备的MAX相高熵陶瓷材料，所述的MAX相高熵陶瓷材料具有优异的力学性能。
Method for preparing MAX-phase high-entropy ceramic material
The invention provides a method for preparing an MAX-phase high-entropy ceramic material. The method comprises the following steps: 1) preparing composite powder: mixing transition metal powder, transition metal hydride powder, corresponding transition metal carbide powder and aluminum powder to prepare the composite powder; 2) dispersing the composite powder obtained in the step 1) in a grinding aid, performing ball milling to obtain mixed slurry, performing vacuum drying, and sieving; (3) putting the mixed powder obtained in the step (2) into a steel mold, and carrying out pre-pressing forming to obtain a ceramic blank; and 4) placing the ceramic blank obtained in the step 3) in a graphite mold, and carrying out pressure sintering under a vacuum condition at a loading pressure of 45-55 MPa and a temperature of 1300-1500 DEG C to obtain the MAX-phase high-entropy ceramic. The invention also provides the MAX-phase high-entropy ceramic material prepared by the method, and the MAX-phase high-entropy ceramic material has excellent mechanical properties.
本发明提供了一种制备MAX相高熵陶瓷材料的方法，其包括如下步骤：1)配制复合粉末，将过渡金属粉末、过渡金属氢化物粉末、对应的过渡金属碳化物粉末以及铝粉进行混合配制复合粉末；2)将在步骤1)得到所述复合粉末分散于助磨剂中，进行球磨得到混合浆料，并进行真空干燥，并进行过筛；3)将步骤2)得到的混合粉末置于钢模中，进行预压成形，得到陶瓷素胚；4)将步骤3)得到陶瓷素胚置于将石墨模具中，在真空条件下，在45～55MPa的加载压力下，1300～1500℃的温度下进行压力烧结，即得到MAX相高熵陶瓷。本发明还提供一种通过所述方法制备的MAX相高熵陶瓷材料，所述的MAX相高熵陶瓷材料具有优异的力学性能。
Method for preparing MAX-phase high-entropy ceramic material
一种制备MAX相高熵陶瓷材料的方法
ZHONG ZHIHONG (Autor:in) / LIU CHENGYOU (Autor:in) / OUYANG WEI (Autor:in) / WU YUCHENG (Autor:in)
30.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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