| Improvement of Fracture Toughness Lanthanum Zirconate |
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| 引用本文： | LI J Y 1,2,DAI H 1,2,LI Q 1,2,ZHONG X H 1,2,CAO X Q 1* (1 Key Lab of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China,2 Graduate School of the Chinese Academy of Sciences,Beijing 100049,China). Improvement of Fracture Toughness Lanthanum Zirconate[J]. 材料工程, 2006, 0(5): 51-57 |
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| 作者姓名： | LI J Y 1 2 DAI H 1 2 LI Q 1 2 ZHONG X H 1 2 CAO X Q 1* (1 Key Lab of Rare Earth Chemistry and Physics Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China 2 Graduate School of the Chinese Academy of Sciences Beijing 100049 China) |
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| 作者单位： | 1 Key Lab of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022，China;2 Graduate School of the Chinese Academy of Sciences，Beijing 100049，China |
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| 基金项目： | 中国科学院资助项目 , 中国科学院"百人计划" |
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| 摘 要： | Thermalbarriercoatings(TBCs)havefoundan increasingnumberofapplicationsinprotectinghigh temperaturemetalliccomponents,forexample,TBCsaredepositedontransitionpieces,combustion lines,first stagebladesandvanes,andotherhot pathcomponentsofgasturbineseithertoincreasethe inlettemperaturewithaconsequentimprovementof theefficiencyortoreducetherequirementsfora coolingsystem[1].Thereareseveralceramicsthat havebeenevaluatedasTBCmaterials[2].Lanthanum zirconatewasrecentlyproposedasapromisingTBC materia…
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| 关 键 词： | ceramics nanostructure |
| 文章编号： | 1001-4381(2006)05-0051-06 |
Improvement of Fracture Toughness Lanthanum Zirconate |
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| LI J Y,DAI H,LI Q,ZHONG X H,CAO X Q. Improvement of Fracture Toughness Lanthanum Zirconate[J]. Journal of Materials Engineering, 2006, 0(5): 51-57 |
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| Authors: | LI J Y DAI H LI Q ZHONG X H CAO X Q |
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| Affiliation: | 1. Key Lab of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
2. Key Lab of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China |
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| Abstract: | La2 Zr2 O7 (LZ) is a promising thermal barrier coating material for the high temperature applications. The fracture toughness and microhardness of nanocrystalline LZ (n-LZ), microcrystalline LZ (m-LZ) and LZ-5mol%8YSZ (LZ-5-8YSZ) composite (8YSZ for zirconia stabilized by 8 mol% ytrria) were studied. The n-LZ had a thermal expansion coeffinanofication was an efficient way to increase the toughness and thermal expansion coefficient of LZ. The composite LZ-5-superhigh pressure (SHP). |
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| Keywords: | ceramics nanostructure fracture toughness thermal expansion Lanthanum Fracture Toughness pressure thermal expansion coefficient increase fracture toughness zirconia composite microhardness nanocrystalline promising thermal barrier coating material high temperature applications |
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