公开(公告)号：US20250002399A1

公开(公告)日：2025-01-02

申请号：US18735717

申请日：2024-06-06

Applicant: CORNING INCORPORATED

Inventor： Jiangwei Feng ,  Timothy James Orcutt ,  Shai Negev Shafrir ,  Istvan Laszlo Szabo

IPC: C03C15/02 ,  C03C3/155 ,  C03C23/00

Abstract: Methods for making a glass article include etching the surfaces of the glass article with an etchant solution that includes hydrofluoric acid to produce an etched glass article. The glass article being a high index glass containing transition metal oxides and having an index of refraction greater than or equal to about 1.6 at 589.3 nm wavelength. The surface having surface and subsurface defects. The etching improves a surface strength of the surfaces of the etched glass article by removing or rounding the surface and subsurface defects, and the etching causes deposition of transition metal fluorides. The methods include cleaning the surfaces of the etched glass article with a cleaning solution having a pH of greater than or equal to about 10 to remove transition metal fluorides from the surfaces of the etched glass article.