TY - JOUR
T1 - Indentation of silicate-glass films on Al2O3 substrates
AU - Zagrebelny, Andrey V.
AU - Lilleodden, Erica T.
AU - Gerberich, William W
AU - Carter, C. Barry
PY - 1999
Y1 - 1999
N2 - 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 (CaAl2Si2O8) were deposited onto Al2O3 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 Al2O3 substrate crystallographic orientation will affect mechanical composite response of silicate-glass film/Al2O3 system.
AB - 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 (CaAl2Si2O8) were deposited onto Al2O3 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 Al2O3 substrate crystallographic orientation will affect mechanical composite response of silicate-glass film/Al2O3 system.
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U2 - 10.1111/j.1151-2916.1999.tb02002.x
DO - 10.1111/j.1151-2916.1999.tb02002.x
M3 - Article
AN - SCOPUS:0032658840
SN - 0002-7820
VL - 82
SP - 1803
EP - 1808
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 7
ER -