Effect of Sol-Gel Precursors on Structure and high Temperature Oxidation Resistance of ZrO2-Y2O3 Ceramic Coatings

Lu Fanxiu; Xu Qingfang; Song Bo; Tong Yumei; Yu Zhongqing

doi:10.13374/j.issn1001-053x.1996.02.007

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Article Navigation > Chinese Journal of Engineering > 1996 > 18(2): 131-135

Lu Fanxiu, Xu Qingfang, Song Bo, Tong Yumei, Yu Zhongqing. Effect of Sol-Gel Precursors on Structure and high Temperature Oxidation Resistance of ZrO2-Y2O3 Ceramic Coatings[J]. Chinese Journal of Engineering, 1996, 18(2): 131-135. doi: 10.13374/j.issn1001-053x.1996.02.007

Citation:

Lu Fanxiu, Xu Qingfang, Song Bo, Tong Yumei, Yu Zhongqing. Effect of Sol-Gel Precursors on Structure and high Temperature Oxidation Resistance of ZrO₂-Y₂O₃ Ceramic Coatings[J]. Chinese Journal of Engineering, 1996, 18(2): 131-135. doi: 10.13374/j.issn1001-053x.1996.02.007

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Effect of Sol-Gel Precursors on Structure and high Temperature Oxidation Resistance of ZrO₂-Y₂O₃ Ceramic Coatings

doi: 10.13374/j.issn1001-053x.1996.02.007

1. Department of Materials Science and Engineering, USTB. Beijing 100083, PRC;
2. Beijing Institute of Management for Metallurgical Engineering

Received Date: 1995-10-13
Available Online: 2021-11-13

Abstract

Abstract

Both metalorganic and inorganic salt precursors were used for preparation of GH220/NiCrAlYSiHf/ZrO₂-Y₂O₃ ceramic coatings. Effect on the structure of the Sol and the high temperature resistance of the resultant ceramic coatings were studied. It was found that although both process can be used for preparation of dense continuous ZrO₂-Y₂O₃ ceramic coatings,only the metalorganic process can give excellent high temperature resistance to the resultant ceramic coatings. Residue acid radicals presented in the Sol may be responsible for the bad performance of the coatings prepared from the inorganic salt process.
- Sol-Gel,
- ZrO₂-Y₂O₃ ceramic coatings,
- high temperature resistance