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Low‐Earth‐Orbit Effects on Strength of Glasses
Author(s) -
Wiedlocher David E.,
Tucker Dennis S.,
Nichols Ron,
Kinser Donald L.
Publication year - 1992
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1992.tb05527.x
Subject(s) - low earth orbit , space debris , orbit (dynamics) , debris , geocentric orbit , earth (classical element) , astrobiology , materials science , earth's orbit , ceramic , mineralogy , environmental science , physics , spacecraft , geology , composite material , satellite , aerospace engineering , astronomy , meteorology , engineering
The effects of a 5.8‐y exposure to low‐earth‐orbit environment upon the mechanical properties of five commercial glasses and a low‐expansion‐coefficient glass‐ceramic have been examined. The radiation components of the earth‐orbit environment did not degrade the mechanical strength of the samples examined within the limits of experimental error. Statistical problems arising from the low frequency of micrometeorite or space debris impacts upon the samples precluded statistically valid measurement of impacted sample strengths. Upper bounds for the magnitude of the impact event damage upon the strengths for impacted samples have been determined.