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首页> 外文会议>Seventh Internatioal Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life Pt.1, Sep 9-13, 2002, Novosibirsk, Russia >Simultaneous measurements of optical and thermal properties of solids at laser heating up to 2500 ℃
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Simultaneous measurements of optical and thermal properties of solids at laser heating up to 2500 ℃

机译：在高达2500℃的激光加热下同时测量固体的光学和热学性质

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Detailed studies of optical and thermal properties of solids are necessary for fundamental science as well as for optimization of technologies of laser processing of materials. The essential temperature dependences of the physical parameters of solids strongly influence the laser-matter interaction processes. The advantage of our experimental technique is the possibility to perform simultaneous measurements of reflectivity, absorptivity, transmissivity, heat capacity, heat conductivity, temperature conductivity of solids in a broad range of investigated temperatures (up to 2500℃) with high temporal resolution (0.5 ms). Besides, the developed method allows to estimate values of heat of phase transitions and to reveal the influence of ambient atmosphere on the physical properties of samples undergoing noticeable structural and chemical modifications during laser heating. A possibility to record both the optical and thermal properties and temperature dependences of metals, ceramics, CVD (chemical vapor deposition) diamond films within a single experiment (for a few seconds) allows to apply this technique for studying and selecting novel materials with unknown properties.
机译：对于基础科学以及对材料的激光加工技术进行优化，必须对固体的光学和热学性质进行详细研究。固体物理参数的基本温度依赖性极大地影响了激光与物质的相互作用过程。我们的实验技术的优势在于可以在广泛的温度范围（最高2500℃）内以高时间分辨率（0.5毫秒）同时测量固体的反射率，吸收率，透射率，热容量，热导率，固体的热导率。 ）。此外，开发的方法可以估算相变热的值，并揭示环境气氛对样品在激光加热过程中经历明显结构和化学修饰的物理性质的影响。可以在一个实验（几秒钟）内记录金属，陶瓷，CVD（化学气相沉积）金刚石膜的光学和热学性质以及温度依赖性的可能性，这允许将该技术应用于研究和选择性质未知的新型材料。

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