Antimicrobial Glass Articles with Improved Strength and Methods of Making and Using Same

摘要

Described herein are various antimicrobial glass articles that have improved strength and resistance to discoloration. The improved antimicrobial glass articles described herein generally include a glass substrate with a compressive stress layer and an antimicrobial silver-containing region that each extend inward from a surface of the glass substrate to a specific depth. In some embodiments, the compressive stress layer has a compressive stress at the surface of about 500 MPa or greater and the compressive stress decreases monotonically from the surface into the depth of the glass substrate. Methods of making and using the glass articles are also described and include forming a compressive stress layer and forming an antimicrobial silver-containing region by preferentially exchanging a plurality of silver cations in a silver-containing medium for a specific plurality of first cations ions in the glass substrate.

主权项

1. An antimicrobial glass article, comprising:
a glass substrate comprising a compressive stress layer that extends inward from a surface of the glass substrate to a first depth therein, and an antimicrobial silver-containing region that extends inward from the surface of the glass substrate to a second depth therein, wherein the compressive stress layer comprises a stress at the surface of about 500 MPa or greater and the compressive stress decreases monotonically from the surface into the depth of the glass substrate.