標題: Growth of zirconia and yttria-stabilized zirconia nanorod arrays assisted by phase transition
作者: Chen, Chih-Chiang
Cheng, Wei-Yun
Lu, Shih-Yuan
Lin, Yi-Feng
Hsu, Yung-Jung
Chang, Kai-Shiun
Kang, Chao-Hsiang
Tung, Kuo-Lun
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 2010
摘要: Well-aligned, densely distributed ZrO(2) nanorod arrays were fabricated using a non-catalytic, template-free metal-organic chemical vapour deposition process at a reaction temperature of 1000 degrees C. The reaction temperature was found to play a key role in product morphology, with particle thin films obtained at 550 degrees C and nanorod arrays produced at 1000 degrees C. Increasing the reaction temperature led to the emergence of the medium-temperature tetragonal phase from the dominant low-temperature monoclinic phase, which is advantageous for anisotropic growth necessary for the nanorod formation. With the same deposition process, yttria-stabilized zirconia nanorod arrays of polycrystalline cubic phase were fabricated by co-feeding the dopant precursor, YCl(3), with the zirconia precursor, Zr(C(5)H(7)O(2))(4). The present work demonstrated the first example of monoclinic to tetragonal phase-transition assisted one-dimensional (1D) growth, and the concept can be extended to the formation of 1D nanostructures of materials possessing the monoclinic-tetragonal polymorphism.
URI: http://hdl.handle.net/11536/6221
http://dx.doi.org/10.1039/c000728e
ISSN: 1466-8033
DOI: 10.1039/c000728e
期刊: CRYSTENGCOMM
Volume: 12
Issue: 11
起始頁: 3664
結束頁: 3669
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