In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 37, No. 6R ( 1998-06-01), p. 3495-
Abstract:
Charged particle emission and luminescence upon bending
fracture of granite were investigated in a vacuum. In most cases, sharp peaks of charged particle emission and
luminescence were observed at the very instant of final fracture, and continued for several seconds. However, it
sometimes happened that the bending fracture needed about 10-20 ms, and a sharp peak of charged particle emission
was also observed at the beginning of the decrease in the applied load, suggesting that initiation and propagation
of microcrack induced the charged particle emission. In both cases, luminescence was observed only at the instant
of final fracture. Luminescence spectra were composed of two bands centered at about 2.1 and 3.0 eV, and each band
showed different decay profiles, suggesting the contribution of the different defect centers.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.37.3495
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1998
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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