《Table 1 Characterization of phase composition of precursor powder after heat treatment》

《Table 1 Characterization of phase composition of precursor powder after heat treatment》   提示:宽带有限、当前游客访问压缩模式
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《前驱粉粒度对Bi-2223带材微观结构和超导电性的影响研究(英文)》


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P.Kameli et al introduce a method to estimate volume fraction of phases,according to X-ray diffraction patterns[9].Volume fractions of phases were estimated by this method to study the effect of particle size on characterization of phase assemblages,as shown in Table 1.Powder 2 has the highestBi-2212 phase content(96.31%)and the lowest Cu O phase content(1.25%).AEC phase increases from 1.93%to 2.78%with decreasing of particle size.FWHM values of Bi-2212phase(0012)decreases with the decreasing of particle size,which means more sufficient reaction.It can be also concluded that the reaction time of precursor powders decreases with the decrease of particle size.