Preparation and Behavior of La2O3-CeO2-ZrO2 Powders

LIU Xihua; MAO Hong; SONG Bo; FU Qiang

doi:10.13374/j.issn1001-053x.2004.04.043

Volume 26 Issue 4

Aug. 2021

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LIU Xihua, MAO Hong, SONG Bo, FU Qiang. Preparation and Behavior of La2O3-CeO2-ZrO2 Powders[J]. Chinese Journal of Engineering, 2004, 26(4): 404-406. doi: 10.13374/j.issn1001-053x.2004.04.043

Citation:

LIU Xihua, MAO Hong, SONG Bo, FU Qiang. Preparation and Behavior of La₂O₃-CeO₂-ZrO₂ Powders[J]. Chinese Journal of Engineering, 2004, 26(4): 404-406. doi: 10.13374/j.issn1001-053x.2004.04.043

LIU Xihua, MAO Hong, SONG Bo, FU Qiang. Preparation and Behavior of La2O3-CeO2-ZrO2 Powders[J]. Chinese Journal of Engineering, 2004, 26(4): 404-406. doi: 10.13374/j.issn1001-053x.2004.04.043

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Preparation and Behavior of La₂O₃-CeO₂-ZrO₂ Powders

doi: 10.13374/j.issn1001-053x.2004.04.043

1. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
3. General Research Institute for Nonferrous Metals, Beijing 100088, China

Received Date: 2003-11-20
Available Online: 2021-08-17

Abstract

Abstract

Lanthanum zirconate (La₂Zr₂O₇, LZ) and La₂O₃-CeO₂-ZrO₂(LCZ) powders for thermal barrier coatings were prepared by coprecipitation. The chemical composition of the powders were analyzed by means of Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES). Crystallographic phases were determined by X-ray diffraction technique. Differential Scanning Calorimetry (DSC) was used to analyze the phase stability at high temperatures. The results showed that both LZ and LCZ powders kept the pyrochlore structure and there were no phase transformations for LZ and LCZ at high temperatures.
- lanthanum zirconate,
- thermal barrier coatings,
- coprecipitation