Soft x-ray diffraction of striated muscle
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
We measured the phase stability of the Bi2Sr2CaCu2O8+δ and Bi2Sr2Ca2Cu3O10+δ superconductors as a function of temperature and oxygen pressure. Below the solidus temperature of ∼790°C, Bi2Sr2CaCu2O8+δ is stable at oxygen pressures one fourth of those where CuO becomes metastable, while Bi2Sr2Ca2Cu3O10+δ is stable at the same pressures where CuO is stable. Above the solidus temperature, the pressure required to stabilize either phase increases rapidly with temperature. The major solid-state decomposition products of Bi2Sr2CaCu2O8+δ are Bi2Sr3-xCaxO6+δ and Cu2O, and also Bi2Sr 2-xCaxO5 for bismuth-rich samples. For Bi2Sr2Ca2Cu3O10+δ the major decomposition products are Bi2Sr2CaCu2O8+δ, Ca2-xSrxCuO 3, and Cu2O. The solid-state decomposition reaction is reversible for the Bi-2212 phase, but not for the Bi-2223 phase. © 1993.
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
J. Paraszczak, J.M. Shaw, et al.
Micro and Nano Engineering
A. Nagarajan, S. Mukherjee, et al.
Journal of Applied Mechanics, Transactions ASME
Peter J. Price
Surface Science