Nanoparticles of Pb-Bi eutectic nucleation and growth on alumina template

Chien Chon Chen, Chin-Guo Kuo, Jung Hsuan Chen, Chuen Guang Chao

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)8354-8359
Number of pages6
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume43
Issue number12
DOIs
Publication statusPublished - 2004 Dec 1

Fingerprint

eutectics
Eutectics
Nucleation
Alumina
templates
aluminum oxides
nucleation
Nanoparticles
nanoparticles
Aluminum
Oxides
porosity
Molten materials
Latent heat
latent heat
Bismuth
bismuth
submerging
melting points
Melting point

Keywords

  • AAO
  • Lead-blsmuth
  • Nanoparticles
  • Nucleation
  • Thermo-immersion process

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Nanoparticles of Pb-Bi eutectic nucleation and growth on alumina template. / Chen, Chien Chon; Kuo, Chin-Guo; Chen, Jung Hsuan; Chao, Chuen Guang.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 43, No. 12, 01.12.2004, p. 8354-8359.

Research output: Contribution to journalArticle

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