Abstract
Deuterium retention and desorption properties of SiC/SiC composite after deuterium ion irradiation were investigated by means of thermal desorption spectroscopy. Carbon composition measured by Auger electron spectroscopy was considerably large, 90 at.%, which was due to the special heat treatment to the SiC fiber. X-ray diffraction analysis suggested that the material investigated was amorphous silicon carbide with fine crystalline phases. After deuterium ion irradiation, retained deuterium desorbed in forms of HD, D2 and CD4. Thermal desorption spectrum of D2 had a single peak at 1050 K. The D2 spectrum was similar to that of CFC rather than that of SiC. Amount of retained deuterium was approximately 5 × 1021 D/m2, which was comparable to that of CFC or SiC. Amount of desorbed CD4 was 5 × 1019 CD4/m2, which was approximately 1/4 of the CFC.
Original language | English |
---|---|
Pages (from-to) | 209-212 |
Number of pages | 4 |
Journal | Shinku/Journal of the Vacuum Society of Japan |
Volume | 44 |
Issue number | 3 |
DOIs | |
State | Published - 2001 |
Externally published | Yes |