Indentation of silicate-glass films on Al[sub 2]O[sub 3] substrates

Journal Article · Thu Jul 01 04:00:00 EDT 1999 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/j.1151-2916.1999.tb02002.x· OSTI ID:6190733

Zagrebelny, A V; Lilleodden, E T; Gerberich, W W; Carter, C B ^[1]

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1. Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Chemical Engineering and Materials Science

The deformation of thin layers of glass on crystalline materials has been examined using newly developed experimental methods for nanomechanical testing. Continuous films of anorthite (CaAl[sub 2]Si[sub 2]O[sub 8]) were deposited onto Al[sub 2]O[sub 3] surfaces by pulsed-laser deposition. Mechanical properties such as Young's modulus and hardness were probed with a high-resolution depth-sensing indentation instrument. Nanomechanical testing, combined with AFM in situ imaging of the deformed regions, allowed force-displacement measurements and imaging of the same regions of the specimen before and immediately after indentation. This new technique eliminates any uncertainty in locating the indentation after unloading. Emphasis has been placed on examining how the Al[sub 2]O[sub 3] substrate crystallographic orientation will affect mechanical composite response of silicate-glass film/Al[sub 2]O[sub 3] system.

• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-92ER45465
• OSTI ID: 6190733
• Journal Information: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Vol. 82:7; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
360603* -- Materials-- Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ANORTHITE
CHALCOGENIDES
COMPOSITE MATERIALS
DATA
DEPOSITION
ENERGY BEAM DEPOSITION
EXPERIMENTAL DATA
FELDSPARS
FILMS
GLASS
HARDNESS
INFORMATION
MATERIALS
MECHANICAL PROPERTIES
MINERALS
NUMERICAL DATA
ORIENTATION
OXIDES
OXYGEN COMPOUNDS
SILICATE MINERALS
SURFACE COATING
YOUNG MODULUS