Structure and Composition of Magnetocaloric Ni-Mn-In-Co Thin Films on the NanoscaleuA TEM Study

被引：9

作者：

Erkartal, Burak ^{[1
]}

Duppel, Viola ^{[2
]}

Niemann, Robert ^{[3
]}

Schultz, Ludwig ^{[3
]}

Faehler, Sebastian ^{[3
]}

Schuermann, Ulrich ^{[1
]}

Kienle, Lorenz ^{[1
]}

机构：

[1] Univ Kiel, Inst Mat Sci Synth & Real Struct, D-24143 Kiel, Germany

[2] Nanochem Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

[3] IFW Dresden, D-01171 Dresden, Germany

来源：

ADVANCED ENGINEERING MATERIALS | 2012年 / 14卷 / 08期

关键词：

CRYSTAL-STRUCTURES;

D O I：

10.1002/adem.201200072

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A complementary set of electron microscopy techniques is applied for the determination of structural and chemical segregation phenomena within a 300?nm thick metamagnetic NiMnInCo thin film. The structure is predominantly composed of distinct modulated martensites of the 5M-, 6M-, 7M-, and 8M-type. Additionally these modulated structures exhibit twinning and stacking disordering. The nature of the disordering and the structural misfit at the twin interface were analyzed via high resolution micrographs. Next to an adhesion layer of Cr interdiffusion on the nanoscale was observed producing a penternary chemically and structurally homogeneous precipitate. The structure can be assigned to a twinned non-modulated pseudocubic model.

引用

页码：710 / 715

页数：6

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