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1篇 您的检索式:作者名="WU Chengjiu"
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1PREPARATION OF HIGH T_(c) Pb-DOPED Bi-BASED SUPERCONDUCTING AMORPHOUS SOLID显示文摘The Pb-doped Bi-based amorphous solid has been prepared by the anvil quenching method from the melt.After annealing,we obtained the dense superconductor with onset and zero resistance temperature at 120K and 107K,respectively.X-ray powder diffraction(XRD)and selected area electron diffract ion(SAED)analysis show that there is mainly high Tc phase(2223 phase)in the sample,and scanning electron microscopy(SEM)observation of the surface of the sample reveals that the needle-like grain abound in sample.Energy dispersive analysis of X-ray(EDAX)indicates that the average composition of grains is Bi_(2)Pb_(0.3)Sr_(1.3)Ca_(1.7)Cu_(2.3)O_(δ).CHEN Meiling LI Xiaoge WANG Keyi LI Shuzhen XU Shihong WU Chengjiu TANG Hongao 1990Chinese Physics Letters1990,7,3:0
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