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

页码：140 / 145

页数：6

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