A Study of the Platinum/Alumina Interface

Abstract:

Single crystal sapphire in one of four orientations (0001), (11 2 0), (1102) and (1010) was bonded to polycrystalline platinum foil at 1330oC under light load 20 N (0.8 MPa) in argon. The different orientations were used as a means to model individual grains within a polycrystal without the uncertain influence of grain boundaries and glass-forming contamination (e.g. SiO2). Partial bonding was observed in all cases. Optical microscopy, scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) were used to study the nature of the bond which appears to be physical rather than chemical, in agreement with previous work.

• Periodical: Advances in Science and Technology (Volume 45)
• Pages: 1417-1422
• DOI: https://doi.org/10.4028/www.scientific.net/AST.45.1417
• Online since: October 2006
• Authors: Kate P. Suppel, Jenny S. Forrester, Gregg J. Suaning, Erich H. Kisi
• Keywords: Aluminum (Al), Interface, Platinum, Single Crystal

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