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Fabrication and characterization of novel powder reconstitution derived nanostructured spherical La-2(Zr0.75Ce0.25)(2)O-7 feedstock for plasma spraying

文献类型：期刊论文

作者Zhou, Feifei1,2; Wang, You; Chen, Wenlong1,2; LiangWang3; Huang, Changxiang4; Wang, Yaming; Liu, Min1,2
刊名APPLIED SURFACE SCIENCE
出版日期2018
卷号459页码:468
关键词Nanostructure La-2(Zr0.75Ce0.25)(2)O-7 Spherical feedstock Powder reconstitution
ISSN号0169-4332
DOI10.1016/j.apsusc.2018.08.040
英文摘要High-performance thermal spraying feedstock is of great significance for obtaining high quality plasma-sprayed thermal barrier coatings (TBCs). Rare-earth zirconates TBCs have attracted much more attention so far. In this paper, the nanostructured La-2(Zr0.75Ce0.25)(2)O-7 (LCZ) feedstock was fabricated by the nanopowder reconstitution method. The microstructures of the LCZ feedstock were characterized by transmission electron microscopy, X-ray diffraction, Raman spectroscopy and scanning electron microscopy. Moreover, the thermo-physical properties of the LCZ feedstock were also evaluated. The results indicate that the spherical LCZ feedstock with the median particle size (d(50)) of 37.40 mu m consists of only pyrochlore phase. Compared with the nanostructured La2Zr2O7(LZ) feedstock, the tap density and flowability of the LCZ feedstock are enhanced considerably. As for the LCZ coating, the thermal conductivity is much lower and the thermal expansion coefficient (TEC) is relatively higher than the LZ coating. Therefore, the nanostructured LCZ feedstock can be a promising advanced thermal spraying feedstock used for double ceramic layer TBCs in future.
学科主题Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号WOS:000444600300060
出版者ELSEVIER SCIENCE BV
资助机构This work was supported by the National Natural Science Foundation of China (NSFC) under the Grant No. 51671208, National NSAF (Grant No. U1730139), National Key Research Program (2017YFB0306100), Guangdong Academy of Sciences Program (Nos. 2018GDASCX-0402, 2017GDASCX-0202, 2017GDASCX-0111), Guangdong Technical Research Program (Nos. 2017B090916002, 2017A070701027), Guangdong Natural Science Foundation (Nos. 2016A030312015, 2017A030310315), and Guangzhou Technical Research Program (Nos. 201605131008557, 201707010385). ; This work was supported by the National Natural Science Foundation of China (NSFC) under the Grant No. 51671208, National NSAF (Grant No. U1730139), National Key Research Program (2017YFB0306100), Guangdong Academy of Sciences Program (Nos. 2018GDASCX-0402, 2017GDASCX-0202, 2017GDASCX-0111), Guangdong Technical Research Program (Nos. 2017B090916002, 2017A070701027), Guangdong Natural Science Foundation (Nos. 2016A030312015, 2017A030310315), and Guangzhou Technical Research Program (Nos. 201605131008557, 201707010385).
源URL[http://ir.sic.ac.cn/handle/331005/24627]  
专题中国科学院上海硅酸盐研究所
作者单位1.Harbin Inst Technol, Sch Mat Sci & Engn, Dept Mat Sci, Harbin 150001, Heilongjiang, Peoples R China
2.Guangdong Inst New Mat, Natl Engn Lab Modern Mat Surface Engn Technol, Guangzhou 510651, Guangdong, Peoples R China
3.Guangdong Inst New Mat, Key Lab Guangdong Modern Surface Engn Technol, Guangzhou 510651, Guangdong, Peoples R China
4.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Coating Mat CAS, Shanghai 201899, Peoples R China
5.Fujian Dilong Innovat Dev Co Ltd, Quanzhou 362010, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Feifei,Wang, You,Chen, Wenlong,et al. Fabrication and characterization of novel powder reconstitution derived nanostructured spherical La-2(Zr0.75Ce0.25)(2)O-7 feedstock for plasma spraying[J]. APPLIED SURFACE SCIENCE,2018,459:468, 476.
APA Zhou, Feifei.,Wang, You.,Chen, Wenlong.,LiangWang.,Huang, Changxiang.,...&Liu, Min.(2018).Fabrication and characterization of novel powder reconstitution derived nanostructured spherical La-2(Zr0.75Ce0.25)(2)O-7 feedstock for plasma spraying.APPLIED SURFACE SCIENCE,459,468.
MLA Zhou, Feifei,et al."Fabrication and characterization of novel powder reconstitution derived nanostructured spherical La-2(Zr0.75Ce0.25)(2)O-7 feedstock for plasma spraying".APPLIED SURFACE SCIENCE 459(2018):468.

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来源：上海硅酸盐研究所

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