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U.S. Department of Energy
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Silicate-glass/sapphire interfaces probed with micromechanical testing instruments: SEM and TEM combined characterization

Conference ·
OSTI ID:468894
; ; ;  [1]
  1. Univ. of Minnesota, Minneapolis, MN (United States)
The mechanical behavior of the interfaces between calcium-alumino-silicate (CAS) glasses and single-crystal {alpha}-Al{sub 2}O{sub 3} substrates has been studied with two different types of micromechanical testers. The emphasis of this work is to correlate irregularities observed in the load-displacement curves produced using these testing instruments with the morphology of the deformation regions observed for the microindentations and microscratches. The effect of the substrate orientation on the interfacial properties has also been studied. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) have been used to characterize the deformation structures associated with the microscratches and microindentations.
DOE Contract Number:
FG02-92ER45465
OSTI ID:
468894
Report Number(s):
CONF-960877--
Country of Publication:
United States
Language:
English