The formation and dissociation of Er deuteride grains were investigated by using scanning electron microscopy, in-situ X-ray diffraction and thermal desorption spectroscopy. Pure Er film shows classic columnar structu...The formation and dissociation of Er deuteride grains were investigated by using scanning electron microscopy, in-situ X-ray diffraction and thermal desorption spectroscopy. Pure Er film shows classic columnar structure, while the Er deuteride film was observed as bamboo-like morphology. The in-situ X-ray diffraction results demonstrate that the diffraction peaks of 27.39°, 28.43°, 31.71°, and 39.95° are ascribed to the crystal planes of （002）, （110）, （111）, and （112） of ErD3 phase, respectively. It is also confirmed that by in-situ X-ray diffraction technique, ErD3 grains would be dissociated at temperature exceeding 400 ℃. This result is consistent with the conclusion obtained by thermal desorption spectroscopy.展开更多
基金supported by the Fundamental Research Funds for the Central Universities of Ministry of Education of China(No.ZYGX2012YB017)the National Natural Science Foundation of China(No.91126001)
文摘The formation and dissociation of Er deuteride grains were investigated by using scanning electron microscopy, in-situ X-ray diffraction and thermal desorption spectroscopy. Pure Er film shows classic columnar structure, while the Er deuteride film was observed as bamboo-like morphology. The in-situ X-ray diffraction results demonstrate that the diffraction peaks of 27.39°, 28.43°, 31.71°, and 39.95° are ascribed to the crystal planes of （002）, （110）, （111）, and （112） of ErD3 phase, respectively. It is also confirmed that by in-situ X-ray diffraction technique, ErD3 grains would be dissociated at temperature exceeding 400 ℃. This result is consistent with the conclusion obtained by thermal desorption spectroscopy.
