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On some observations of the thermal emission of iron flakes produced in a grinding wheel

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Abstract

A report is given of some laboratory experiments on the thermal emission of glowing iron flakes. Clear effects of polarization are found sometimes in flakes of small size, indicating polarization of a kind similar to that appearing in the thermal emission from narrow metallic filaments. Sudden flashes of light appear in the thermal emission from flakes produced in a grinding wheel. At the same time the flake splits into two parts. It is suggested that the flash is due to tribo-thermoluminescence. It seems possible that the infrared radiation of the solar corona may contain a faintly polarized component due to thermal emission from dust particles.

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  1. Lund, Sweden

    Y. Öhman

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  1. Y. Öhman
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Paper dedicated to Professor Hannes. Alfvén on the occasion of his 70th birthday, 30 May, 1978.

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Öhman, Y. On some observations of the thermal emission of iron flakes produced in a grinding wheel. Astrophys Space Sci 55, 39–47 (1978). https://doi.org/10.1007/BF00642578

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  • DOI: https://doi.org/10.1007/BF00642578

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