• 作者： 沈祥榮 ; 吳茂昆 ; 謝政毓 等
• 作者服務機構： 清華大學材料科學工程系
• 中文摘要： A superconducting (Bi,Pb)/sub 2/(Sr,Ca)/sub 4/ Cu/sub 3/O/sub y/ material has been prepared by the oxalate coprecipitation method. The high-Tc 110K phase was effectively promoted by application of an intermediate grinding and pressing between the sintering heat treatments. The powder X-ray diffraction shows the existence of single high-Tc and high-textured microstructures with strong (001) reflections within a short sintering time (18h). The morphology of the sintered samples was examined by scanning electron microscopy (SEM). Also, the kinetics of the formation of the high-Tc phase were investigated by the isothermal method. A possible mechanism of the formation of high-Tc 2223 phase was proposed.
• 英文摘要： --
• 中文關鍵字： Multiple Pressing; Isothermal; Sintering; Mechanism
• 英文關鍵字： 多重成型；等溫；燒結；機構