【摘 要】
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A homogeneous precipitation process based on urea hydrolysis reaction was exploited to synthesize BaMgAl10O17:Eu2+phosphor.The process parameters,such as the do
【机 构】
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School of Materiais Science and Engineering
论文部分内容阅读
A homogeneous precipitation process based on urea hydrolysis reaction was exploited to synthesize BaMgAl10O17:Eu2+phosphor.The process parameters,such as the dosage of urea,the calcination temperatures and the concentration of Eu2+,were refined in light of the characterization of the products.The experimental results revealed that pure and well-crystallized BaMgAl10O17:Eu2+phosphor could be obtained at 1250℃,a much lower temperature than that for traditional solid-state reaction.The as-prepared phosphor particles were small in grain size,regular in morphology,and uniform in size distribution.Because of the high homogeneity of the process,the as-prepared phosphor exhibited stronger emission intensity and higher thermal stability than the sample prepared by solid-state reaction at1600℃.
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