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Acid‐Enhanced Crack Initiation in Glass
Author(s) -
Dabbs T. P.,
Lawn B. R.
Publication year - 1982
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.1151-2916.1982.tb10392.x
Subject(s) - materials science , silicate glass , immersion (mathematics) , dissolution , composite material , soda lime glass , rod , residual stress , metallurgy , chemistry , mathematics , medicine , alternative medicine , pathology , pure mathematics
Silicate glass rods containing Vickers indentations in the subthreshold‐fracture region can show dramatic strength losses on brief immersion in acid solutions. The effect is most significant for “normal” glasses, notably soda‐lime glass, and for HF‐based acids. After extended immersion the strength begins to recover, ultimately surpassing the original (pre‐immersion) level, as glass dissolution processes become dominant. The weakening effect is interpreted in terms of chemically enhanced residual‐contact stress effects.