Abstract
The propagation of a macroscale crack was visualized in Mg partially stabilized zirconia ceramic using the mechanoluminescence (ML) of Sr Al2 O4: Eu,Dy. The transformation zone around the crack was also clearly detected by the ML. The ML technique permitted on a relatively fast time frame the quasidynamic R curve to be measured for crack speeds up to 15 ms. The transformation zone width grew to a maximum in the initial transient part of the quasidynamic R curve. The applied stress intensity factor then commenced to increase to 16 MPam.
Original language | English |
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Article number | 241916 |
Journal | Applied Physics Letters |
Volume | 90 |
Issue number | 24 |
DOIs | |
State | Published - 2007 |