Numéro
J. Phys. IV France
Volume 04, Numéro C2, Février 1994
European Workshop on Piezoelectric Materials : Crystal Growth, Properties and Prospects
Page(s) C2-79 - C2-83
DOI http://dx.doi.org/10.1051/jp4:1994210
European Workshop on Piezoelectric Materials : Crystal Growth, Properties and Prospects

J. Phys. IV France 04 (1994) C2-79-C2-83

DOI: 10.1051/jp4:1994210

Controlled dissolution of quartz material.
Part I. Controlled dissolution of quartz plates in potassium and sodium hydroxides : chemical thinning down of SC cuts

M. DELEUZE1, O. CAMBON2, A. GOIFFON1, A. IBANEZ1 and E. PHILIPPOT1

1  Laboratoire de Physicochimie des Matériaux Solides, UM II, URA DO407 du CNRS, C 003, Place E. Bataillon, 34095 Montpellier cedex 5, France
2  C.E.P.E/Thomson, 44 Avenue de la Glacière, BP. 165, 95100 Argenteuil, France


Abstract
From previous studies suggesting that controlled crystal growth and crystal dissolution are governed by the same laws, we have previously finalized the chemical lapping or controlled dissolution of AT quartz plates in NaOH,H2O. The quality of chemical polishing changes with the crystallographic orientation of plates. Consequently, we have investigated similar basic solvents other than NaOH medium to obtain a good chemical polishing of SC cuts. Surface roughness evolution was checked and shows that controlled dissolution of SC cuts has to take place in KOH medium. As shown in NaOH medium, initial surface state has a great influence on thinning down. Dissolution rates measured against temperature in different media and activation energies are compared.



© EDP Sciences 1994