Published February 2008 | Version v1
Journal article Metadata-only

Fractoluminescence and dislocation density of ionic crystals after X-ray irradiation

Creators

  • 1. Kanazawa Univ., Kanazawa, Ishikawa (Japan)
  • 2. Kanazawa Univ., Dept. of Mechanical Engineering, Kanazawa, Ishikawa (Japan)

Description

Fractoluminescence (FL) has been observed by three bending tests of KCl single crystals doped with Ca2+, the size of which 3x1x12 mm3. FL has occurred only in the vicinity of fracture surface (within 0.3mm) and FL intensity as well as dislocation density has sharply decreased with increasing distance from fracture surface. And the dislocation density has approached to the initial one. Collecting data from many samples, it has been found that the FL intensity is proportional to the three-half power of the dislocation density. The relation between FL intensity and dislocation density has been explained by dislocation intersection. (author)

Additional details

Publishing Information

Journal Title
Zairyo
Journal Volume
57
Journal Issue
2
Journal Page Range
p. 154-158
ISSN
0514-5163

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
39068128
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BENDING; CALCIUM IONS; DISLOCATIONS; DOPED MATERIALS; FRACTURES; IONIC CRYSTALS; IRRADIATION; LUMINESCENCE; MONOCRYSTALS; POTASSIUM CHLORIDES; X-RAY SOURCES
Descriptors DEC
ALKALI METAL COMPOUNDS; CHARGED PARTICLES; CHLORIDES; CHLORINE COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; CRYSTALS; DEFORMATION; EMISSION; FAILURES; HALIDES; HALOGEN COMPOUNDS; IONS; LINE DEFECTS; MATERIALS; PHOTON EMISSION; POTASSIUM COMPOUNDS; RADIATION SOURCES

Optional Information

Notes
11 refs., 8 figs.