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Phase-change-free high-entropy rare earth tantalate niobate high-temperature ceramic material with hysteresis diffusion effect, preparation method and application
The invention discloses a phase-change-free high-entropy rare earth tantalate niobate high-temperature ceramic material with a hysteresis diffusion effect, a preparation method and application, the high-temperature ceramic material is a rare earth tantalate niobate oxide system RE (TaxNb) O4, RE specifically is any five to eight of Sm, Gd, Dy, Ho, Er, Tm, Yb and Lu, x is more than or equal to 0 and less than 1, y is more than or equal to 0 and less than 1, x + y is equal to 1, and the density is controlled to be more than or equal to 95%. The high-temperature ceramic material has no phase change and ultralow lattice thermal conductivity and oxygen ion conductivity, and can improve the temperature drop gradient passing through a ceramic layer and inhibit the overgrowth of a thermal growth oxide layer at the same time. The ceramic material can provide thermal protection for hot-end components in the field of heavy devices such as aero-engines, gas turbines, supersonic aircrafts and ships, the working temperature is increased, and the service life is prolonged.
本专利申请公开了一种具有迟滞扩散效应的无相变高熵稀土钽铌酸盐高温陶瓷材料、制备方法及应用，高温陶瓷材料为稀土钽铌酸盐氧化物体系RE(TaxNby)O4，其中RE具体为Sm、Gd、Dy、Ho、Er、Tm、Yb、Lu中的任意5种到8种，0≤x＜1，0≤y＜1，并且x+y=1，并控制致密度≥95%。该高温陶瓷材料具有无相变、超低的晶格热导率和氧离子电导率，可提高通过陶瓷层的温降梯度同时抑制热生长氧化层的过度生长。该陶瓷材料可为航空发动机、燃气轮机、超音速飞行器、船舰等大国重器领域的热端部件提供热防护、提高工作温度、延长使用寿命。
Phase-change-free high-entropy rare earth tantalate niobate high-temperature ceramic material with hysteresis diffusion effect, preparation method and application
The invention discloses a phase-change-free high-entropy rare earth tantalate niobate high-temperature ceramic material with a hysteresis diffusion effect, a preparation method and application, the high-temperature ceramic material is a rare earth tantalate niobate oxide system RE (TaxNb) O4, RE specifically is any five to eight of Sm, Gd, Dy, Ho, Er, Tm, Yb and Lu, x is more than or equal to 0 and less than 1, y is more than or equal to 0 and less than 1, x + y is equal to 1, and the density is controlled to be more than or equal to 95%. The high-temperature ceramic material has no phase change and ultralow lattice thermal conductivity and oxygen ion conductivity, and can improve the temperature drop gradient passing through a ceramic layer and inhibit the overgrowth of a thermal growth oxide layer at the same time. The ceramic material can provide thermal protection for hot-end components in the field of heavy devices such as aero-engines, gas turbines, supersonic aircrafts and ships, the working temperature is increased, and the service life is prolonged.
本专利申请公开了一种具有迟滞扩散效应的无相变高熵稀土钽铌酸盐高温陶瓷材料、制备方法及应用，高温陶瓷材料为稀土钽铌酸盐氧化物体系RE(TaxNby)O4，其中RE具体为Sm、Gd、Dy、Ho、Er、Tm、Yb、Lu中的任意5种到8种，0≤x＜1，0≤y＜1，并且x+y=1，并控制致密度≥95%。该高温陶瓷材料具有无相变、超低的晶格热导率和氧离子电导率，可提高通过陶瓷层的温降梯度同时抑制热生长氧化层的过度生长。该陶瓷材料可为航空发动机、燃气轮机、超音速飞行器、船舰等大国重器领域的热端部件提供热防护、提高工作温度、延长使用寿命。
Phase-change-free high-entropy rare earth tantalate niobate high-temperature ceramic material with hysteresis diffusion effect, preparation method and application
一种具有迟滞扩散效应的无相变高熵稀土钽铌酸盐高温陶瓷材料、制备方法及应用
ZHONG XIAOYU (Autor:in) / GAN MENGDI (Autor:in) / FENG JING (Autor:in) / LAI LIPING (Autor:in) / CHEN LIN (Autor:in) / WANG JUN (Autor:in)
22.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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