In situ transmission electron microscopy investigation of the interfacial reaction between Ni and Al during rapid heating in a nanocalorimeter

Michael D. Grapes; Thomas LaGrange; Karsten Woll; Bryan W. Reed; Geoffrey H. Campbell; David A. LaVan; Timothy P. Weihs

doi:10.1063/1.4900818

APL Materials (Nov 2014)

In situ transmission electron microscopy investigation of the interfacial reaction between Ni and Al during rapid heating in a nanocalorimeter

Michael D. Grapes,
Thomas LaGrange,
Karsten Woll,
Bryan W. Reed,
Geoffrey H. Campbell,
David A. LaVan,
Timothy P. Weihs

Affiliations

Michael D. Grapes: Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA
Thomas LaGrange: Lawrence Livermore National Laboratory, Materials Science and Technology Division, Livermore, California 94550, USA
Karsten Woll: Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA
Bryan W. Reed: Lawrence Livermore National Laboratory, Materials Science and Technology Division, Livermore, California 94550, USA
Geoffrey H. Campbell: Lawrence Livermore National Laboratory, Materials Science and Technology Division, Livermore, California 94550, USA
David A. LaVan: Material Measurement Laboratory, Materials Measurement Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
Timothy P. Weihs: Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA

DOI: https://doi.org/10.1063/1.4900818
Journal volume & issue: Vol. 2, no. 11
pp. 116102 – 116102-7

Abstract

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The Al/Ni formation reaction is highly exothermic and of both scientific and technological significance. In this report, we study the evolution of intermetallic phases in this reaction at a heating rate of 830 K/s. 100-nm-thick Al/Ni bilayers were deposited onto nanocalorimeter sensors that enable the measurement of temperature and heat flow during rapid heating. Time-resolved transmission electron diffraction patterns captured simultaneously with thermal measurements allow us to identify the intermetallic phases present and reconstruct the phase transformation sequence as a function of time and temperature. The results show a mostly unaltered phase transformation sequence compared to lower heating rates.

Published in APL Materials

ISSN: 2166-532X (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Biotechnology; Science: Physics
Website: http://aplmaterials.aip.org

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