Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a preparation method of a multi-rare earth co-doped toughened hafnium oxide ceramic material and a product of the multi-rare earth co-doped toughened hafnium oxide ceramic material. The prepared material is a multi-rare earth co-doped hafnium oxide ceramic material system, and the chemical composition of the material is HfaYbCecLadOx, wherein a is 92.6-97.1, b is 1.5-3, c is 0.1-5.4, La is 0.1-0.3, and x meets the total number of oxygen atoms required by valence of other elements. The material provided by the invention has the characteristics of relatively high phase stability, high toughness and compactness, the highest fracture toughness of the material can reach 12.31 MPa*m<1/2>, and the highest hardness is 1120HV10; the bending strength is 898.3 MPa; and the compactness is 98.1%.
本发明公开了一种多种稀土共掺杂增韧氧化铪陶瓷材料的制备方法及其产品。制备的材料为多种稀土共同掺杂氧化铪陶瓷材料体系，材料的化学组成为HfYCeLaO，其中a=92.6~97.1，b=1.5~3，c=0.1~5.4，La=0.1~0.3，x满足其它元素化合价所需的氧原子总数。本发明提供的材料具有较高的相稳定性、高韧性、致密性的特点，该材料的最高断裂韧性可达12.31MPa·m，最高的硬度为1120HV；抗弯强度为898.3MPa；致密性为98.1%。
The invention discloses a preparation method of a multi-rare earth co-doped toughened hafnium oxide ceramic material and a product of the multi-rare earth co-doped toughened hafnium oxide ceramic material. The prepared material is a multi-rare earth co-doped hafnium oxide ceramic material system, and the chemical composition of the material is HfaYbCecLadOx, wherein a is 92.6-97.1, b is 1.5-3, c is 0.1-5.4, La is 0.1-0.3, and x meets the total number of oxygen atoms required by valence of other elements. The material provided by the invention has the characteristics of relatively high phase stability, high toughness and compactness, the highest fracture toughness of the material can reach 12.31 MPa*m<1/2>, and the highest hardness is 1120HV10; the bending strength is 898.3 MPa; and the compactness is 98.1%.
本发明公开了一种多种稀土共掺杂增韧氧化铪陶瓷材料的制备方法及其产品。制备的材料为多种稀土共同掺杂氧化铪陶瓷材料体系，材料的化学组成为HfYCeLaO，其中a=92.6~97.1，b=1.5~3，c=0.1~5.4，La=0.1~0.3，x满足其它元素化合价所需的氧原子总数。本发明提供的材料具有较高的相稳定性、高韧性、致密性的特点，该材料的最高断裂韧性可达12.31MPa·m，最高的硬度为1120HV；抗弯强度为898.3MPa；致密性为98.1%。
Multi-rare earth co-doped toughened hafnium oxide ceramic material and preparation method thereof
一种多种稀土共掺杂增韧氧化铪陶瓷材料及其制备方法
DENG SHAN (Autor:in)
17.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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