Method for treating vitreous materials by thermal poling
AssigneeCentre National De La Recherche Scientifique
InventorsMaxime Paraillous, Thierry Cardinal, Angeline Poulon, Evelyne Fargin, Marc Dussauze
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Abstract
The invention relates to a method for treating a silicate-type glass comprising alkali and alkaline-earth metal oxides or d10 or IIIA metal oxides, said method comprising at least the following steps: (a) incorporation of nitrogen into the surface of the glass; and (b) thermal poling treatment of the material obtained in (a), under a chemically inert controlled atmosphere. The invention also relates to the material produced by said method.
Claims13
A method for treating a silicate-type glass comprising alkali and alkaline earth metal oxides or IIIA metal oxides, said method comprising:
- (a) incorporating nitrogen into a surface of the silicate-type glass whereby a material comprising nitrogen is obtained, and
- (b) thermal poling treatment of the material comprising nitrogen from (a) under a chemically inert controlled atmosphere,
- wherein the material comprising nitrogen is placed between an anode and a cathode without direct contact between the material comprising nitrogen and the anode.
A method for
- improving durability of glazing of a silicate-type glass comprising alkali and alkaline earth metal oxides or IIIA metal oxides;
- or
- improving scratch resistance of a digital/tactile screen comprising alkali and alkaline earth metal oxides or IIIA metal oxides;
- or
- increasing resistance to abrasion of a mirror comprising alkali and alkaline earth metal oxides or IIIA metal oxides;
- said method comprising:
- (a) incorporating nitrogen into a surface of the silicate-type glass whereby a material comprising nitrogen is obtained, and
- (b) thermal poling treatment of the material comprising nitrogen from (a) under a chemically inert controlled atmosphere,
- wherein the material comprising nitrogen is placed between an anode and a cathode without direct contact between the material comprising nitrogen and the anode.
A method of manufacturing:
- a building glazing comprising a silicate-type glass comprising alkali and alkaline earth metal oxides or IIIA metal oxides;
- or
- a solar panel mirror comprising a silicate-type glass comprising alkali and alkaline earth metal oxides or IIIA metal oxides;
- or
- a screen for electronic devices comprising a silicate-type glass comprising alkali and alkaline earth metal oxides or IIIA metal oxides;
- or
- a fiberglass comprising a silicate:
- type glass comprising alkali and alkaline earth metal oxides or IIIA metal oxides;
- said method comprising:
- (a) incorporating nitrogen into a surface of the silicate-type glass whereby a material comprising nitrogen is obtained, and
- (b) thermal poling treatment of the material comprising nitrogen from (a) under a chemically inert controlled atmosphere,
- wherein the material comprising nitrogen is placed between an anode and a cathode without direct contact between the material comprising nitrogen and the anode.
Dependencies are inferred from the claim text.