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首页> 外文期刊>精密工学会誌 >Observation of light pulses at micro-fractures of solids and the temperature estimation of the part by the spectral data
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Observation of light pulses at micro-fractures of solids and the temperature estimation of the part by the spectral data

机译：观察固体微裂纹处的光脉冲并通过光谱数据估算零件的温度

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摘要

It was reported in the former paper that, when a fused quartz is scratched by an abrasive grain, a series of pit(5-30μm) array can be formed and a series of light pulse array corresponding to the pit array is found to emit. In this report, various solid samples were subjected to observe the pulses and to estimate the momentary temperatures. The temperature was found to have a relation to the thermal conductivity of the material. Silicate materials (SiO_2: fused quartz, single crystal and Pyrex glass), which have low thermal conductivities, show rather high temperature, even emitting line spectra near 300nm suggesting desorption of *O_2 molecules from SiO_2.
机译：在前一篇论文中已经报道，当熔融石英被磨料颗粒刮擦时，可以形成一系列凹坑（5-30μm）阵列，并且发现发射出与凹坑阵列相对应的一系列光脉冲阵列。在此报告中，对各种固体样品进行了观测，并估算了瞬时温度。发现温度与材料的热导率有关。具有低热导率的硅酸盐材料（SiO_2：熔融石英，单晶和耐热玻璃）显示相当高的温度，甚至在300nm附近发射线谱，表明* O_2分子从SiO_2上解吸。

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