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The dependency of optical properties on density for hot pressed MgF2

机译:光学性能对热压MgF2密度的依赖性

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摘要

The effects of the most important parameters of hot pressing, including temperature, time and pressure on densification, microstructure and infrared transparency of MgF2 ceramics are discussed. The results show that the absorption or scattering of incident radiation is strongly dependent on the amount of porosity. By increasing the temperature or the pressure, transparency at infrared wavelengths has been increased due to the rise in density. For the longer hot pressing times, a continuous increase in density and infrared transparency has been seen as well. Cold pressing before hot press has minor effects on the density and infrared transparency of MgF2. (C) 2008 Elsevier B.V. All rights reserved.
机译:讨论了热压最重要的参数,包括温度,时间和压力对MgF2陶瓷的致密化,微观结构和红外透明度的影响。结果表明,入射辐射的吸收或散射在很大程度上取决于孔隙率。通过增加温度或压力,由于密度的增加,红外波长下的透明度增加了。对于更长的热压时间,还可以看到密度和红外透明度的连续增加。热压之前的冷压对MgF2的密度和红外透明度影响不大。 (C)2008 Elsevier B.V.保留所有权利。

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