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High-voltage Electron Microscopy of Radiation Damages in Octacalcium Phosphate
Takaaki Aoba
Department of Oral Pathology
Junzo Takahashi
Department of Dental Technology, Osaka University Dental School, Nakanoshima, Kita-ku, Osaka 530, Japan
Toshio Yagi
Department of Oral Pathology
Yutaka Doi
Department of Dental Technology, Osaka University Dental School, Nakanoshima, Kita-ku, Osaka 530, Japan
Masayuki Okazaki
Department of Dental Technology, Osaka University Dental School, Nakanoshima, Kita-ku, Osaka 530, Japan
Yutaka Moriwaki
Department of Dental Technology, Osaka University Dental School, Nakanoshima, Kita-ku, Osaka 530, Japan
The present high-voltage electron microscopic study showed two types of radiation damages in OCP. The first type commenced with the formation of voids, which later grew and coalesced along the c-axis. The second type was characterized by the appearance of paired and concentric strain fields and the subsequent formation of dislocations. The origin of the strain fields is attributed tentatively to a precipitation of a second phase in the crystal.
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Journal of Dental Research, Vol. 60, No. 5,
954-959 (1981)
DOI: 10.1177/00220345810600051801
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