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A Controlled Flaw Technique for Lifetime Characterization
Author(s) -
Liniger Eric G.,
Cook Robert E.
Publication year - 1993
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.1151-2916.1993.tb08346.x
Subject(s) - borosilicate glass , brittleness , characterization (materials science) , indentation , fracture (geology) , materials science , stress (linguistics) , identification (biology) , fracture mechanics , forensic engineering , structural engineering , composite material , engineering , nanotechnology , linguistics , philosophy , botany , biology
A new technique for studying the lifetime characterstics of brittle materials is presented. The technique involves the use of controlled identification flawa and treats time‐to‐failure as an experimentally fixed parameter rather than a dependent variable. Experimental advantages include specimen economy and unambiguous data analysis (for example, no specimens or results are lost due to test “run‐out”). The technique is applied to a borosilicate glass and the data compared with indentation fracture mechanics predicitions from a previous study. The data show the significant effects of reactive environment, in this case water, to reduce the failure stress of components.