Preparation method of Er3+ and Tm3+ co-doped yttrium lanthanum oxide scintillating material transparent ceramic material
A technology of transparent ceramics and lanthanum yttrium oxide, which is applied in the field of preparation of lanthanum yttrium oxide scintillation transparent ceramic materials, can solve the problems of small thermal conductivity and thermal damage threshold, difficult crystal growth, short fluorescence lifetime, etc., and achieve good optical properties, Realize the effect of industrial scale production and simple preparation process
Inactive Publication Date: 2014-07-30
SHANGHAI UNIV
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However, due to the small stimulated emission interface of glass, the thermal conductivity and thermal damage threshold are also small, which limits its continuous use. For crystals, its fluorescence lifetime (2-4ms) is relatively short, and it is difficult to grow crystals and difficult to process into Large size, high preparation cost
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[0019] Specific embodiments of the present invention will now be described in conjunction with the accompanying drawings.
[0020] a kind of Er 3+ and Tm 3+ The preparation method of co-doped lanthanum oxide yttrium scintillation transparent ceramic material has the following process and steps:
[0021] a. Using high-purity 99.99% Y 2 o 3 , 99.99%Er 2 o 3 , 99.99%Tm 2 o 3 and 99.99% La 2 o 3 As raw materials, the molar ratio of the four is according to the chemical formula (Tm 0.02 Er 0.02 Y 0.86 La 0.1 ) 2 o 3 To weigh ingredients;
[0022] b. Y prepared according to the above formula 2 o 3 , Er 2 o 3 , Tm 2 o 3 , La 2 o 3 The mixed powder is put into a ball mill tank for ball milling, the ball-to-material ratio is 2:1, the mass ratio of solvent ethanol to powder is 4:1, the ball mill tank speed is 50 rpm, and the ball mill time is 5h;
[0023] c. The ball-milled powder is dried in an oven, and then the mixed powder is calcined in a muffle furnace, kep...
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Abstract
The invention relates to a preparation method of Er3+ and Tm3+ co-doped yttrium lanthanum oxide scintillating material transparent ceramic material, and belongs to the technical field of special ceramic manufacturing technology. The method takes high-purity Y2O3, Er2O3, Tm2O3 and La2O3 powder as raw material, adopts the traditional ceramic preparation technology to prepare the Er3+ and Tm3+ co-doped yttrium lanthanum oxide scintillating material transparent ceramic material in a low temperature condition through a suitable sintering schedule and a solid state sintering method. Experiments show that after Tm3+ ion is added, the ceramic material ensures that 2.7 micrometer lightening is restrained to a certain extent, so that the ceramic material has a wide application prospect in the field of 3 micrometer laser field.
Description
technical field [0001] The present invention relates to a kind of Er 3+ and Tm 3+ The invention discloses a preparation method of co-doped lanthanum oxide and yttrium scintillation transparent ceramic material, which belongs to the technical field of special ceramic manufacturing technology. Background technique [0002] In recent years, 3um laser materials have been highly valued at home and abroad. The laser in the 3um band is located in the two transmission windows (1-3um, 3-5um) of the atmosphere, and covers many important molecular characteristic lines. Therefore, it has a wide range of applications in the fields of remote sensing, ranging, environmental monitoring, bioengineering and medical treatment. In the military, the 3um band laser has good atmospheric transmission characteristics, strong ability to penetrate battlefield smoke, good confidentiality, and is extremely safe to human eyes. It can realize the miniaturization of laser diode pumping, so this kind of ...
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IPC IPC(8): C04B35/505C04B35/626C04B35/622
Inventor 王永刚杨秋红陆神洲张浩佳黄栋栋李韫含
Owner SHANGHAI UNIV