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Article Dans Une Revue High Pressure Research Année : 2000

The hydrothermal growth of alpha-quartz and the nature of the physico-chemical defects detected in the resulting crystal

Résumé

The development of α-quartz for high frequencies devices leads to a strong reduction of the thickness of the piezoelectric sheet. Such a thickness is comparable to the size of the defects. Consequently, the main objective for the improvement of the performances of α-quartz used as a piezoelectric material is to reduce the density of physico-chemical defects. Our work has been focussed in two directions: (i) the identification of different physico-chemical defects using the overlap of different techniques (X-ray topography, IR spectroscopy, Cathodoluminescence, Thermo-luminescence, EPR,…) (ii) attempts at improving the correlations between the different parameters governing the hydrothermal crystal growth of a-quartz and the nature or the density of defects.
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hal-02556304 , version 1 (13-02-2023)

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Pierre-Emmanuel Hickel, Gerard Demazeau, R. Arnaud, Rémy Chapoulie, Pierre Guibert, et al.. The hydrothermal growth of alpha-quartz and the nature of the physico-chemical defects detected in the resulting crystal. High Pressure Research, 2000, 18 (1-6), pp.265-269. ⟨10.1080/08957950008200978⟩. ⟨hal-02556304⟩
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