METHODS AND APPARATUS FOR STRENGTH AND/OR STRAIN LOSS MITIGATION IN COATED GLASS

摘要

Methods and apparatus provide for: a glass substrate having a first strain to failure characteristic, a first elastic modulus characteristic, and a flexural strength; and a coating applied over the glass substrate to produce a composite structure in order to increase a hardness thereof, where the coating has a second strain to failure characteristic and a second elastic modulus characteristic, where the first strain to failure characteristic is higher than the second strain to failure characteristic, and one of: (i) the first elastic modulus characteristic is above a minimum predetermined threshold such that any reduction of the flexural strength of the glass substrate resulting from application of the coating is mitigated; and (ii) the first elastic modulus characteristic is below a maximum predetermined threshold such that any reduction of the strain to failure of the glass substrate resulting from application of the coating is mitigated.

主权项

1. A method, comprising:
providing a glass substrate having a first strain to failure characteristic, a first elastic modulus characteristic, and a flexural strength; applying a coating over the glass substrate to produce a composite structure, where the coating has a second strain to failure characteristic and a second elastic modulus characteristic, wherein the first strain to failure characteristic is higher than the second strain to failure characteristic; and selecting the first elastic modulus characteristic such that one of: (i) the first elastic modulus characteristic is above a minimum predetermined threshold such that any reduction of the flexural strength of the glass substrate resulting from application of the coating is mitigated; and (ii) the first elastic modulus characteristic is below a maximum predetermined threshold such that any reduction of the strain to failure of the glass substrate resulting from application of the coating is mitigated.