Open AccessAGGREGATION CHARACTERISTICS OF GOLD ATOMS DEPOSITED ON MOLTEN GLASS SURFACES
Author(s) -
Jin Jin-Sheng,
Gaoxiang Ye,
Chang-Ji Qian,
Zhai Guo-Qing,
QuanLin Ye,
Zhengkuan Jiao
Publication year - 2001
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.50.544
Subject(s) - materials science , crystallization , diffusion , molten metal , colloid , chemical physics , crystal (programming language) , composite material , chemical engineering , thermodynamics , chemistry , computer science , programming language , physics , engineering
The diffusion,aggregation and crystallization characteristics of gold atoms deposited on molten glass surfaces are studied.Experimental results indicate that the gold atoms first form a characteristic web-shaped Au film on the colloid glass surface,and the average diameter of the crystal grains in the film is about 20 nm.The area of the meshes gradually increases and then the whole film tatters.Thus the compact clusters are formed.The saturated diameter of the compact clusters is about 1.2μm and its diffusion coefficient D is of the order of 107—108cm2/s.The compact clusters diffuse on the molten glass surface quickly and quasi-randomly,and finally large ramified aggregates with diameter of about 50 μm from.