Ferroelectric ceramics such as BaTiO<sub>3</sub>, PbTiO<sub>3</sub> and PLZI has been widely used in piezo-and pyroelectric devices. Ferroelectric thin films can be integrated with large-scale ...Ferroelectric ceramics such as BaTiO<sub>3</sub>, PbTiO<sub>3</sub> and PLZI has been widely used in piezo-and pyroelectric devices. Ferroelectric thin films can be integrated with large-scale inte-grated circuits, so the films can be used for many kinds of microelectronic and electroopticdevices, such as NVFRAM, SAW devices, optical switches and optical展开更多
The study of mechanical properties of high T<sub>C</sub> superconductors is very important for their practical application. A lot of work has been carried out in this field. We have studied the deformation...The study of mechanical properties of high T<sub>C</sub> superconductors is very important for their practical application. A lot of work has been carried out in this field. We have studied the deformation and fracture of bulk YBCO and the effect of doped Ag. The Ag contents dolled in YBa<sub>2</sub>Cu<sub>3</sub>Ag<sub>x</sub>O<sub>7-y</sub> were in a range of X=0 to 1.5. We found that X=0.3 was the optimum Ag content, at which the fracture toughness, hardness and strength increased significantly and reached their maxima. However, the studies on me-展开更多
The preparation of the single domain GBCO bulk with 25 mm in diameter in air was reported. In order to avoid the Gd ions substituted the Ba sites, different BaCuO2 contents was added into the precursor powders. Tc of ...The preparation of the single domain GBCO bulk with 25 mm in diameter in air was reported. In order to avoid the Gd ions substituted the Ba sites, different BaCuO2 contents was added into the precursor powders. Tc of the samples achieved 94.3 K. The magnetization hysteresis loops of the samples were measured at 77 K. It is shown that the irreverswas obtained.展开更多
基金Project supported by the National Natural Science Foundation of Chinapartially by the Electronic Material Research Laboratory of Xi'an Jiaotong University.
文摘Ferroelectric ceramics such as BaTiO<sub>3</sub>, PbTiO<sub>3</sub> and PLZI has been widely used in piezo-and pyroelectric devices. Ferroelectric thin films can be integrated with large-scale inte-grated circuits, so the films can be used for many kinds of microelectronic and electroopticdevices, such as NVFRAM, SAW devices, optical switches and optical
基金Project supported by the National Center for Research and Development on Superconductivity of China.
文摘The study of mechanical properties of high T<sub>C</sub> superconductors is very important for their practical application. A lot of work has been carried out in this field. We have studied the deformation and fracture of bulk YBCO and the effect of doped Ag. The Ag contents dolled in YBa<sub>2</sub>Cu<sub>3</sub>Ag<sub>x</sub>O<sub>7-y</sub> were in a range of X=0 to 1.5. We found that X=0.3 was the optimum Ag content, at which the fracture toughness, hardness and strength increased significantly and reached their maxima. However, the studies on me-
文摘The preparation of the single domain GBCO bulk with 25 mm in diameter in air was reported. In order to avoid the Gd ions substituted the Ba sites, different BaCuO2 contents was added into the precursor powders. Tc of the samples achieved 94.3 K. The magnetization hysteresis loops of the samples were measured at 77 K. It is shown that the irreverswas obtained.
