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168yjh

铜虫 (小有名气)

[交流] 【求助】中译英一小段

中译英一小段。请勿用软件作简单翻译,谢谢!

通过调节基质组分比例,研究了SrAl2xO3x+1:Eu2+,Dy3+(x=1~2)荧光粉晶体结构,发光性质及长余辉特性。选取硝酸锶和硝酸铝作为基质原材料,硼酸氨和氟化铝作为助溶剂,采用阳离子草酸盐共沉淀、湿法混合及分步合成等方法,制备了亮度高、余辉长及良好粒径分布的系列长余辉发光材料。基于对样品X射线衍射图谱,激发、发射光谱和余辉衰减曲线测量及分析,发现SrAl2xO3x+1: Eu2+,Dy3+具有良好的结晶状态;随x增加,发射光谱峰值从520nm蓝移至470nm;衰减到可辨认发光强度0.32mcd/m2余辉时间可相应地从30h延长到60h以上。表现不同余辉特性的主要原因是Eu2+在基质中具有不同浓度、不同衰减速度的蓝、绿两种发光中心造成的,其中蓝发光中心寿命明显高于绿发光中心。

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monitor2885

至尊木虫 (职业作家)

队长

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
168yjh(金币+30,VIP+0):有一定参考价值,但还需做较多改进!请看下2楼回复。以便相互学习,谢谢! 8-24 17:59
通过调节基质组分比例,研究了SrAl2xO3x+1:Eu2+,Dy3+(x=1~2)荧光粉晶体结构,发光性质及长余辉特性。选取硝酸锶和硝酸铝作为基质原材料,硼酸氨和氟化铝作为助溶剂,采用阳离子草酸盐共沉淀、湿法混合及分步合成等方法,制备了亮度高、余辉长及良好粒径分布的系列长余辉发光材料。基于对样品X射线衍射图谱,激发、发射光谱和余辉衰减曲线测量及分析,发现SrAl2xO3x+1: Eu2+,Dy3+具有良好的结晶状态;随x增加,发射光谱峰值从520nm蓝移至470nm;衰减到可辨认发光强度0.32mcd/m2余辉时间可相应地从30h延长到60h以上。表现不同余辉特性的主要原因是Eu2+在基质中具有不同浓度、不同衰减速度的蓝、绿两种发光中心造成的,其中蓝发光中心寿命明显高于绿发光中心。

By adjusting the proportion of components, fluorescence crystal structure, luminescent properties and long afterglow characteristics of SrAl2xO3x+1: Eu2+, Dy3+(x=1~2) were studyied. Strontium nitrate and aluminum nitrate as a matrix of raw materials, then ammonia and aluminum fluoride boric acid as a cosolvent, we used cationic oxalate coprecipitation, wet mixing, synthesis method and step-by-step method to prepare a series of long afterglow luminescent materials with high-brightness, long afterglow and good size distribution. Based on X-ray diffraction pattern of sample, excitement and emission spectra and afterglow decay curve measurement, we found that SrAl2xO3x +1: Eu2+, Dy3+ has a good crystalline state. With x increasing, AES peak moved from 520nm to 470nm; afterglow time for attenuation to recognizable luminous intensity of 0.32mcd/m2 can be extended from 30h to 60h. The characteristics of different afterglow are mainly due to Eu2+ in matrix with different concentrations, different decay rate of blue and green radiation centers. The blue light-emitting center was significantly higher than the green one.
Retirement
6楼2009-08-24 11:08:11
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难。。。。。。。。。。。。。。
2楼2009-08-23 10:56:55
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asif-lily

金虫 (正式写手)

仅供参考

★ ★ ★ ★ ★
168yjh(金币+5,VIP+0):谢谢参与 8-24 17:55
By adjusting the matrix component proportion,research the phosphor crystal structure of SrAl2xO3x+1:Eu2+,Dy3+(x=1~2), luminance and persistence characteristic.Select strontium nitrate and aluminium nitrate as stroma materials, use AmmoniumBorate and aluminium fluoride as latent solvent, synthesis series of long-lasting phosphor by the stepwise synthesis and  co-precipitates of oxalates ,wet-mixing. the long-lasting phosphor in the paper having the qualities of High brightness,long afterglow, Good particle size distribution.
一天我睁开眼睛看到这个世界很陌生。妈妈说:everythingwillbeok!
3楼2009-08-23 13:15:42
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asif-lily

金虫 (正式写手)

The Xs and emission spectrum results showed that SrAl2xO3x+1: Eu2+,Dy3+ have good crystallizationcan , with the x increasing he excited from 520nm to 470nm.
太费劲了,不是你专业的,好多词都没听过啊!
lz 找找专利啥的,自己翻译吧
一天我睁开眼睛看到这个世界很陌生。妈妈说:everythingwillbeok!
4楼2009-08-23 13:34:58
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