標題: Nanoparticles of Pb-Bi eutectic nucleation and growth on alumina template
作者: Chen, CC
Kuo, CG
Chen, JH
Chao, CG
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: thermo-immersion process;lead-bismuth;nanoparticles;nucleation;AAO
公開日期: 1-十二月-2004
摘要: A novel and convenient method of thermo-immersion was used to fabricate of a large of lead-bismuth (Pb-Bi) eutectic nanoparticles on an uniform size anodic aluminum oxide (AAO) template. The AAO with a 60 nm pore diameter was used as a template for nanoparticles nucleation and growth. Both Pb-Bi and AAO were placed in a glass tube in vacuum at 10(-6) Torr, controlled by a molecular turbo pump then heated up to the melting point of the alloy. Nanoparticles nucleated and grew on the AAO template when the molten Pb-Bi solidified. The nanoparticles nucleated on the pore corners of the AAO template initially, grew simultaneously and assembled into a big nanoparticle on top of the AAO template later. Additionally, the size diameters of the initial nanoparticles were approximately 15 nm on the pore corners of the AAO template, and 80 nm when the initial nanoparticles formed a large nanoparticle. Latent heat was released when the molten Pb-Bi solidified to form nanoparticles. The size diameters distribution of nanoparticles was observed by scanning electron microscopy (SEM) such that, the diameters of the nanoparticles were 80 nm on top of the AAO template, and 200 nm in depths of the concave.
URI: http://dx.doi.org/10.1143/JJAP.43.8354
http://hdl.handle.net/11536/25582
ISSN: 0021-4922
DOI: 10.1143/JJAP.43.8354
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
Volume: 43
Issue: 12
起始頁: 8354
結束頁: 8359
顯示於類別:期刊論文


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