Preparation and Luminescence Property of LaMgAl_(11)O_(19)

机译：LaMgAl_（11）O_（19）的制备及发光性能

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Lanthanum magnesium hexaaluminate (LaMgAl_(11)O_(19), LMA) has attracted much interest as its widely used in solid state lasers, TV phosphors and fluorescent lamps. In this paper, LaMgAl_(11)O_(19) ceramic was pressureless sintered at 1650 ℃ for 10 h in air atmosphere using LaMgAl_(11)O_(19) powders prepared by solid-state reaction at 1500℃ for 4 h. The result indicated that the synthesis temperature of LaMgAl_(11)O_(19) powders was about 1500℃. The LMA ceramic sample was dense and had a microstructure of platelet-like gains. The excitation spectrum shows two wide bands with the peaks at about 254 nm and 265 nm by monitoring the strongest 362 nm emission, and the emission spectra is consisted of a broad band emission with their peaks near 362 nm with a half-width about 5 nm exciting with 265 nm wavelength.

机译：六铝酸镧镁（LaMgAl_（11）O_（19），LMA）受到广泛的关注，因为它广泛用于固态激光器，电视荧光粉和荧光灯中。本文采用LaMgAl_（11）O_（19）粉末在1500℃固相反应4 h，在空气中于1650℃将LaMgAl_（11）O_（19）陶瓷在1650℃下无压烧结10 h。结果表明，LaMgAl_（11）O_（19）粉末的合成温度约为1500℃。 LMA陶瓷样品致密并且具有血小板样增益的微观结构。通过监测最强的362 nm发射，激发光谱显示出两个宽带，其峰值分别在254 nm和265 nm处，并且发射光谱由宽带发射组成，其峰值在362 nm附近，半峰约为5 nm。 265 nm波长激发。

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来源
《Materials for energy conversion and storage》|2012年|224-227|共4页
会议地点 Shenzhen(CN)
作者
Min Xin; Fang Minghao; Liu Yangai; Huang Zhaohui;
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作者单位

School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, P.R. China;

School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, P.R. China;

School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, P.R. China;

School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, P.R. China;

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原文格式 PDF
正文语种 eng
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关键词
luminescence; solid-state method; LaMgAl_(11)O_(19);

机译：发光固态法LaMgAl_（11）O_（19）;

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Preparation and Luminescence Property of LaMgAl_(11)O_(19)

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