期刊
APPLIED PHYSICS LETTERS
卷 90, 期 24, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.2748100
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资金
- National Research Foundation of Korea [gasokpls200701] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The propagation of a macroscale crack was visualized in Mg partially stabilized zirconia ceramic using the mechanoluminescence (ML) of SrAl2O4: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 m/s. 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 MPa root m. (c) 2007 American Institute of Physics.
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