Preparation of aluminum thin films and laminates
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W. Preuner
Wolfgang Preuner is an R&D engineer at Constantia Teich, specializing in microstructure analysis. His expertise lies in the metallographic preparation and microscopic characterization of aluminum alloys. He studied technical chemistry at JKU Linz and materials science at TU Vienna.
,
M. Hofinger
Abstract
In the sector of flexible primary packaging for food and pharmaceutical aluminum films and film laminates are currently undergoing a transformation toward the use of a steadily increasing proportion of recycled material. Further development of the metallographic sample preparation of these composite materials is required to ensure that the often subtle changes in the material involved can be analyzed in a meaningful way. The conventional preparation technique using microtome sections is compared to an analysis of metallographic sections on the example of two laminate structures. This method is intended to replace microtome sections for layer thickness analyses and present a correlative approach in the field of material and structural analysis. Mechanical preparation allowed achieving sufficient sample qualities and visualizing the basic structure of the laminates under investigation. The two methods were furthermore correlated.
Kurzfassung
Aktuell erleben Aluminiumfolien und Folienlaminate im flexiblen Primärverpackungsbereich für Lebensmittel und pharmazeutische Verpackungen eine Transformation hin zum Einsatz von immer steigenden Recyclinganteilen. Um die damit einhergehenden, oft subtilen, Veränderungen im Material aussagekräftig analysieren zu können, bedarf es einer Weiterentwicklung der metallographischen Probenpräparation dieser Materialverbunde. Anhand von zwei Laminatstrukturen wird die konventionelle Präparationstechnik mittels Mikrotomschnitt einer Analyse eines metallographischen Schliffs gegenübergestellt. Diese Methode soll Mikrotomschnitte zur Schichtdickenanalyse ersetzen und einen korrelativen Ansatz in der Werkstoff- und Gefügeanalyse gewährleisten. Durch die maschinelle Präparation konnten ausreichende Probenqualitäten erreicht und die Grundstruktur der untersuchten Laminate dargestellt werden. Zudem wurden die beiden Methoden korrelativ miteinander verbunden.
About the author
Wolfgang Preuner is an R&D engineer at Constantia Teich, specializing in microstructure analysis. His expertise lies in the metallographic preparation and microscopic characterization of aluminum alloys. He studied technical chemistry at JKU Linz and materials science at TU Vienna.
References / Literatur
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© 2025 Walter de Gruyter GmbH, Berlin/Boston, Germany
Articles in the same Issue
- Contents
- Editorial
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- A roll-headed pin from Getzersdorf, Austria, opens up interesting questions about iron metallurgy in the Hallstatt period
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- Materials scientific challenges of a circular economy of high-alloy tool steels
- Cavitation-induced damage on a ship propeller’s Kort nozzle made of AISI 316L and investigation of the near-surface microstructural changes
- Preparation of aluminum thin films and laminates
- Preparation and microstructural examination of additively manufactured alloys 316L and 17-4PH
- Results of a round robin test on grain boundary determination by image analysis in the DGM working group ‘Quantitative Structural Analysis’
- Deep learning-based precipitate quantification in STEM images of complex steel microstructures
- A bronze fibula foot from the Roman Carnuntum, Lower Austria
- Optimization of preparation methods for EBSD analysis of highly metastable austenitic steels
- Picture of the Month
- Picture of the Month
- People
- Interview with Gaby Ketzer-Raichle on the occasion of the new edition of “Schumann Metallography”, published by Heinrich Oettel and Gaby Ketzer-Raichle
- News
- News
- Meeting Diary
- Meeting Diary
Articles in the same Issue
- Contents
- Editorial
- Editorial
- Evaluation of damage mechanisms in full-forward rod extruded AISI 5115 steel by AI-based image segmentation
- A roll-headed pin from Getzersdorf, Austria, opens up interesting questions about iron metallurgy in the Hallstatt period
- Magneto-optical Kerr effect analysis of strain-induced martensite formation during flow forming of metastable austenitic steel AISI 304L
- Materials scientific challenges of a circular economy of high-alloy tool steels
- Cavitation-induced damage on a ship propeller’s Kort nozzle made of AISI 316L and investigation of the near-surface microstructural changes
- Preparation of aluminum thin films and laminates
- Preparation and microstructural examination of additively manufactured alloys 316L and 17-4PH
- Results of a round robin test on grain boundary determination by image analysis in the DGM working group ‘Quantitative Structural Analysis’
- Deep learning-based precipitate quantification in STEM images of complex steel microstructures
- A bronze fibula foot from the Roman Carnuntum, Lower Austria
- Optimization of preparation methods for EBSD analysis of highly metastable austenitic steels
- Picture of the Month
- Picture of the Month
- People
- Interview with Gaby Ketzer-Raichle on the occasion of the new edition of “Schumann Metallography”, published by Heinrich Oettel and Gaby Ketzer-Raichle
- News
- News
- Meeting Diary
- Meeting Diary
