XRD and TEM Heating of Large Period Ni/Al Multilayer Coatings

• Authors: Z. Świątek , A. Gradys , Ł. Maj , J. Morgiel , K. Marszałek , R. Mania , M. Szlezynger
• Languages of publication: EN

Abstracts

EN

The Ni/Al multilayer coating of λ ≈100 nm was deposited onto (001)-oriented monocrystalline silicon substrate using double target magnetron sputtering system equipped with rotating sample holder. The thicknesses of alternating layers were adjusted in the way to preserve the chemical composition ratio close to 50%Al:50%Ni (at.%). The in situ X-ray diffraction and in situ transmission electron microscopy heating experiments were carried out at relatively low heating rates (20°C/min) in order to study the phase transformation sequence. The investigations revealed that the reaction between Ni and Al multilayers starts at ≈200°C with precipitation of Al₃Ni phase, while above 300°C dominates precipitation of Ni₃Al and NiAl intermetallic phases. Both the X-ray and electron diffractions acquired at 450°C confirmed presence of the Ni₃Al and NiAl intermetallics, but the former pointed at still lasting traces of Ni(Al) solid solution.

Keywords

EN

68.65.Ac; 68.37.Lp

Discipline

• 68.37.Lp: Transmission electron microscopy (TEM)
• 68.65.Ac: Multilayers

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 130
• Issue: 4
• Pages: 880-883

Dates

published

2016-10

Contributors

author

Z. Świątek

• Institute of Metallurgy and Materials Science, PAS, W. Reymonta 25, 30-059 Cracow, Poland

author

A. Gradys

• Institute of Fundamental Technological Research, PAS, Warsaw, Poland

author

Ł. Maj

• Institute of Metallurgy and Materials Science, PAS, W. Reymonta 25, 30-059 Cracow, Poland

author

J. Morgiel

• Institute of Metallurgy and Materials Science, PAS, W. Reymonta 25, 30-059 Cracow, Poland

author

K. Marszałek

• AGH University of Science and Technology, Cracow, Poland

author

R. Mania

• AGH University of Science and Technology, Cracow, Poland

author

M. Szlezynger

• Institute of Metallurgy and Materials Science, PAS, W. Reymonta 25, 30-059 Cracow, Poland

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Identifiers

DOI

10.12693/APhysPolA.130.880