Irradiation induced metastable phase formation in thermally immiscible Co-Ag multilayers

被引：6
|
作者：
Amirthapandian, S
Panigrahi, BK [1 ]
Srivastava, AK
Gupta, A
Nair, KGM
Nandedkar, RV
Narayanasamy, A
机构：
[1] Indira Gandhi Ctr Atom Res, Div Mat Sci, Kalpakkam 603102, Tamil Nadu, India
[2] Univ Madras, Dept Nucl Phys, Ctr Mat Sci, Madras 600025, Tamil Nadu, India
[3] Ctr Adv Technol, Synchrotron Utilisat Sect, Indore 452013, India
[4] Inter Univ Consortium DAE Facil, Indore 452017, India
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2003年 / 212卷
关键词：
ion beam mixing; metastable phase; TEM; amorphisation;
D O I：
10.1016/S0168-583X(03)01427-7
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The microstructural evolution of Ar+ ion irradiated Co/Ag multilayers with the fluence range of 1 x 10(16)-7 x 10(16) ions/cm(2) is studied by transmission electron microscopy. The electron diffraction pattern of as-prepared sample shows the sharp lines from both Co and Ag. Ag nanoparticles were observed after irradiation to a fluence of 1 x 10(16) ions/cm(2). Upon irradiation to a fluence of 7 x 10(16) ions/cm(2), a new metastable phase, Ag3Co, with hcp structure (DO19) and having nanosized grains, is observed. The formation of irradiation induced metastable phase in Co/Ag multilayer system is discussed based on total energy calculations and kinetic considerations. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：140 / 145
页数：6
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