Patent ID: 11858844
Assignee: BYD COMPANY LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B  H  Y | IPC B  C  H

Claim 3:
4. The glass composite according to claim 1, wherein:
the first glass member and the second glass member are connected to form a contact interface,
a cross section along the direction perpendicular to the contact interface is defined as a first cross section,
the first cross section has no crevices when observed visually by naked eyes or observed under a microscope at a magnification of 500×, and
the first cross section has crevices at the contact interface after contacting with a hydrofluoric acid solution,
wherein crevices of the first cross section have a width of 0.1-300 μm after it is corroded for 30 s-1200 s in the hydrofluoric acid solution having a mass concentration of 5%-40% crevice.