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Preparation and Properties of a Flexible Al2O3AlAl2O3 Composite
Joint Authors
Tong, Yigang
Zhou, Zhibin
Cai, Hui
Wang, Xueliang
Wang, Yaping
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-22
Country of Publication
Egypt
No. of Pages
5
Abstract EN
A flexible Al2O3/Al/Al2O3 sandwich composite was prepared by microarc oxidation (MAO) on an aluminum foil with 50 μm thickness.
The obtained ceramic layers with a thickness of 20–22 μm on the surface of the aluminum foil are mainly Al2O3.
The composite, with exterior layers of Al2O3, can be bent more than 90° without observable fracture or delamination.
The morphology of the MAO coatings, which has been characterized by scanning electronic microscopy (SEM), is porous and contains microcracks.
The energy-dispersive spectrum (EDS) and the X-ray diffraction (XRD) results indicate that the MAO coatings mainly contain γ-Al2O3.
Based on experimental observations, the flexibility mechanism was explained by the presence of the microcracks which improve the toughness and decrease the stiffness of the MAO coatings.
The well-adhered layers of the sandwich structure can also prevent the fracture of the MAO coating.
The thermal diffusivity of the composite is between that of aluminum and Al2O3 and the specific electrical resistance is 45.4% of that of Al2O3 under 50 V.
This composite has the potential to be applied as tailorable low-voltage insulation material.
American Psychological Association (APA)
Tong, Yigang& Zhou, Zhibin& Cai, Hui& Wang, Xueliang& Wang, Yaping. 2018. Preparation and Properties of a Flexible Al2O3AlAl2O3 Composite. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-5.
https://search.emarefa.net/detail/BIM-1120802
Modern Language Association (MLA)
Tong, Yigang…[et al.]. Preparation and Properties of a Flexible Al2O3AlAl2O3 Composite. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-5.
https://search.emarefa.net/detail/BIM-1120802
American Medical Association (AMA)
Tong, Yigang& Zhou, Zhibin& Cai, Hui& Wang, Xueliang& Wang, Yaping. Preparation and Properties of a Flexible Al2O3AlAl2O3 Composite. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-5.
https://search.emarefa.net/detail/BIM-1120802
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120802