Three-dimensional microstructure of thin copper foils revealed by ion beam cutting and electron backscatter diffraction (EBSD)
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07/2005
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04B - Conference paper
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Texture and anisotropy of polycrystals II. ITAP 2. Proceedings of the International Conference on Texture and Anisotropy of Polycrystals (ITAP 2)
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Solid State Phnenomena
Series number
105
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Trans Tech Publications, Ltd.
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Metz
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Abstract
Tensile testing of thin rolled copper foils with thickness ranging from 10 to 250 µm shows a dependence of the fracture strain with respect to the thickness of the foils [G. Simons et al., in Solid Mechanics and its Applications, Vol. 114 (2004), pp. 89-96]. To understand the influence of the microstructure in the foils on this phenomenon the microtexture is investigated by orientation mapping through electron backscatter diffraction (EBSD). As the samples are rather small standard preparation techniques do not apply. Two methods are described which allow the investigation of different section cuts of the samples: Cross sections of the samples were produced by ion beam cutting with a wide beam of 7 keV Kr ions. Internal planes parallel to the specimen surface were made accessible by wet etching. The as-received material possesses a very strong texture consisting mostly of the cube component and some remnants of a previous rolling texture. Specimens tested in a tensile test do not show major microstructural changes compared to virgin samples. After a heat treatment at 300°C the cube texture has significantly weakened in favour of revived rolling components, and the fracture strain increased about ten times relative to the as-is material.
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Subject (DDC)
620 - Ingenieurwissenschaften und Maschinenbau
Event
2nd International Conference on Texture and Anisotropy of Polycrystals (ITAP 2)
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07.07.2004
Conference end date
09.07.2004
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ISBN
3908451094
ISSN
1662-9779
Language
English
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No
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Published
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Peer review of the abstract
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Closed
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Citation
SIMONS, Gerd, Karsten KUNZE, W. HAUFFE und Jürg DUAL, 2005. Three-dimensional microstructure of thin copper foils revealed by ion beam cutting and electron backscatter diffraction (EBSD). In: C. ESLING, M. HUMBERT, R.A. SCHWARZER und F. WAGNER (Hrsg.), Texture and anisotropy of polycrystals II. ITAP 2. Proceedings of the International Conference on Texture and Anisotropy of Polycrystals (ITAP 2). Metz: Trans Tech Publications, Ltd. Juli 2005. Solid State Phnenomena, 105. ISBN 3908451094. Verfügbar unter: https://irf.fhnw.ch/handle/11654/49556