@article{oai:nitech.repo.nii.ac.jp:00002262,
 author = {小澤, 正邦 and 稲垣, 雅彦},
 journal = {セラミックス基盤工学研究センター年報 = Annual report of the Ceramics Research Laboratory Nagoya Institute of Technology},
 month = {Mar},
 note = {The internal friction and Young's modulus of superconducting YBa2Cu3O6+x ceramic wires at 200kHz were examined at 30-1050Kunder direct heating cyclic condition of samples without a buffer part. Novel behavior was observed for polycrystalline YBa2Cu3O6+xwires showed anelastic behavior as well as orthorhombic-to-tetragonal (O-T) phase transition within present temperature rangeafter several heat treatment. There appeared a strong internal friction peak below the O-T transition temperature, correspondingto the atomic site relaxation between oxygen and a vacancy in the Cu-O plane of oxygen defective YB2Cu3O6+x. A novel peak wasobserved after the cyclic heat treatments at around 700K, which was attributed to the hopping movement of oxygen in the defectivelocal structure of YBa2Cu3O6+x., application/pdf},
 pages = {23--27},
 title = {その場加熱によるYBa2Cu3O6+x線材の内部摩擦と酸素緩和の測定},
 volume = {7},
 year = {2008},
 yomi = {オザワ, マサクニ and イナガキ, マサヒコ}
}