Surface engineering of soda lime silicate glass under thermal poling process for hardness reinforcement

6^th International Conference and Exhibition on Materials Science and Chemistry

May 17-18, 2018 | Rome, Italy

Fargin Evelyne, Paraillous Maxime, Poulon Quintin Angeline, Cardinal Thierry and Dussauze Marc

ICMCB - Universit�© Bordeaux, France
ISM - Universit�© Bordeaux, France

Scientific Tracks Abstracts: J Material Sci Eng

Abstract :

Surface engineering of soda-lime silicate glass has been performed by thermal poling and the correlation between the modification of the glass composition, the local structure and the mechanical properties of the field-induced modified surface has been investigated. Glow discharge optical emission spectroscopy (GD-OES) demonstrates the multi-layered structuring of the glass surface, due to the migration of mobile cations species. The nature of the atmosphere during poling directly impacts on the charge compensation mechanisms, the multi-layer shape and composition. This work demonstrates the presence of a pure layer of silica beneath the surface of the poled glass under N2 which strongly increases the mechanical properties of soda-lime glass, especially hardness. The thermal poling treatment is then used to enhance a densification of the poled region and a compressive stress at the silica nanometric layer surface. Recent Publications 1. Jiang L et al. (2013) Different K+�Na+ inter-diffusion kinetics between the air side and tin side of an ion-exchanged float aluminosilicate glass. Applied Surface Science 265:889-894. 2. Lepienski C M, Giacometti J A, et al. (1993) Electric field distribution and near-surface modifications in soda-lime glass submitted to a dc potential. Journal of Non-Crystalline Solids 159:204-212. 3. Krieger U and Lanford W A (1988) Field assisted transport of Na+ ions, Ca2+ ions and electrons in commercial sodalime glass I: Experimental. Journal of Non-Crystalline Solids 102:50-61. 4. Carlson D E, Hang K W and Stockdale G F (1974) Ion depletion of glass at a blocking anode: II, properties of iondepleted glasses. Journal of American Ceramic Society 57(7):295-300. 5. Dussauze M, Rodriguez V, et al. (2010) How does thermal poling affect the structure of soda-lime glass. Journal of Physical Chemistry C 114:12754-12759.

Biography :

Fargin Evelyne has strong experience in nonlinear optical properties of glasses and particularly third and second order nonlinear susceptibility. She implanted in Bordeaux the surface glass processing by poling which is now developed with co-workers for composition, mechanical properties and optical structuring of the glass surface. She recently developed new heavy glass oxides for fiber applications thanks to strong collaborations inside an international laboratory LUMAQ (U. Bordeaux, COPL Laval, INRS Québec). She also was involved in the study and optimization of laser-induced defects in glasses and luminescence properties of flaws for the Megajoule Laser Facility in Bordeaux.
Email:Evelyne.fargin@u-bordeaux.fr