Conclusions
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1.
Study of the IR spectra of unannealed corundum crystals grown in a hydrogen-oxygen flame established that all such crystals have absorption bands corresponding to OH-group valence vibrations and hence do not differ in this respect from other crystals grown under analogous conditions.
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2.
The experimental data obtained in this investigation indicate that there is a relationship between the absorption bands corresponding to OH groups and the content of impurities requiring charge compensation in the crystals.
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Additional information
Translated from Zhurnal Prikladnoi Spektroskopii, Vol.10, No. 6, pp. 981–984, June, 1969.
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Volynets, F.K., Vorob'ev, V.G. & Sidorova, E.A. Infrared absorption bands in corundum crystals. J Appl Spectrosc 10, 665–667 (1969). https://doi.org/10.1007/BF00614413
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DOI: https://doi.org/10.1007/BF00614413