Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Zirconium oxide-based ceramic material without phase change and preparation method thereof
The invention discloses a phase-change-free zirconia-based ceramic material and a preparation method thereof, the chemical formula of the phase-change-free zirconia-based ceramic material is (Zr1-x-yYxTay) O2, x is more than or equal to 0.16 and less than or equal to 0.32, and y is more than or equal to 0.12 and less than or equal to 0.22. According to the invention, different contents of Y2O3 and Ta2O5 are doped in ZrO2 by using a chemical coprecipitation method, and finally, multiphase ceramic materials with different compositions are obtained. Wherein part of the multiphase ceramic material contains t-phase zirconia-based ceramic, so that the fracture toughness of the material is improved, meanwhile, lattice distortion is increased due to a doping effect, and lower Young modulus, lower thermal conductivity and higher thermal expansion coefficient are generated.
本发明公开了一种无相变的氧化锆基陶瓷材料及其制备方法，无相变的氧化锆基陶瓷材料化学分子式为(Zr1‑x‑yYxTay)O2，其中0.16≤x≤0.32，0.12≤y≤0.22。本发明利用化学共沉淀法在ZrO2中掺杂不同含量的Y2O3、Ta2O5，最终得到不同组成的多相陶瓷材料。其中部分多相陶瓷材料包含t相氧化锆基陶瓷，使材料的断裂韧性得到提高，同时因为掺杂效应使晶格畸变增大，产生较低的杨氏模量、较低的热导率、较高的热膨胀系数。
Zirconium oxide-based ceramic material without phase change and preparation method thereof
The invention discloses a phase-change-free zirconia-based ceramic material and a preparation method thereof, the chemical formula of the phase-change-free zirconia-based ceramic material is (Zr1-x-yYxTay) O2, x is more than or equal to 0.16 and less than or equal to 0.32, and y is more than or equal to 0.12 and less than or equal to 0.22. According to the invention, different contents of Y2O3 and Ta2O5 are doped in ZrO2 by using a chemical coprecipitation method, and finally, multiphase ceramic materials with different compositions are obtained. Wherein part of the multiphase ceramic material contains t-phase zirconia-based ceramic, so that the fracture toughness of the material is improved, meanwhile, lattice distortion is increased due to a doping effect, and lower Young modulus, lower thermal conductivity and higher thermal expansion coefficient are generated.
本发明公开了一种无相变的氧化锆基陶瓷材料及其制备方法，无相变的氧化锆基陶瓷材料化学分子式为(Zr1‑x‑yYxTay)O2，其中0.16≤x≤0.32，0.12≤y≤0.22。本发明利用化学共沉淀法在ZrO2中掺杂不同含量的Y2O3、Ta2O5，最终得到不同组成的多相陶瓷材料。其中部分多相陶瓷材料包含t相氧化锆基陶瓷，使材料的断裂韧性得到提高，同时因为掺杂效应使晶格畸变增大，产生较低的杨氏模量、较低的热导率、较高的热膨胀系数。
Zirconium oxide-based ceramic material without phase change and preparation method thereof
一种无相变的氧化锆基陶瓷材料及其制备方法
FENG JING (Autor:in) / CHEN LIN (Autor:in) / LUO KEREN (Autor:in) / WANG JIANKUN (Autor:in) / ZHAO SHIXIAN (Autor:in) / WANG GANG (Autor:in) / LI HONGXIA (Autor:in)
02.08.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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