Theory of rod eutectic growth under far-from-equilibrium conditions: Nanoscale spacing and transition to glass
Theory of rod eutectic growth under far-from-equilibrium conditions: Nanoscale spacing and transition to glass
复制标题
远离平衡条件下的棒共晶生长理论：纳米级间距和玻璃转变
DOI：
10.1016/j.actamat.2012.02.020
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发表时间：
2012-04
期刊：
影响因子：
9.4
通讯作者：
Wang, N.
中科院分区：
文献类型：
--
作者：
Trivedi, R.;Wang, N.
The growth of eutectic under large undercooling conditions is important in obtaining nanoscale composite microstructures. Many glass-forming eutectic systems also exhibit a fine rod eutectic microstructure and often show a direct transition from eutectic to glass with increasing undercooling at the interface. A theoretical model of rod eutectic growth is developed in this paper, which quantitatively evaluates the system and growth parameters that will give rise to large undercooling at the interface. In addition to the diffusion and capillary undercooling, the model incorporates the effects of a sharp decrease in the diffusion coefficient that is exhibited by fragile glass-forming systems, the presence of highly nonlinear liquidus lines at large undercooling, and the effects of non-equilibrium at the interface. The results of the model are then discussed to obtain an insight into the system and growth parameters that are critical for obtaining a large undercooling at the eutectic interface, which is important in the design of nanoscale composite materials and in the selection of potential glass-forming systems.
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DOI：
10.1007/bf02650266
发表时间：
1991-12-01
期刊：
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
影响因子：
--
作者：
KURZ, W;TRIVEDI, R
通讯作者：
TRIVEDI, R
DOI：
10.1016/0001-6160(89)90203-4
发表时间：
1989-12
期刊：
Acta Metallurgica
影响因子：
--
作者：
M. Zimmermann;M. Carrard;W. Kurz
通讯作者：
M. Zimmermann;M. Carrard;W. Kurz
影响因子：
2.6
作者：
F. Froes
通讯作者：
F. Froes
DOI：
10.1007/978-1-4684-9134-0
发表时间：
1980
期刊：
--
影响因子：
--
作者：
C. Suryanarayana
通讯作者：
C. Suryanarayana
影响因子：
9.4
作者：
N. Wang;Y. E. Kalay;R. Trivedi
通讯作者：
N. Wang;Y. E. Kalay;R. Trivedi