Patent ID: 7625509

Claim:
A method of making an article from glass comprising: providing a substrate including an outer surface; providing at least a first glass, wherein the first glass comprises at least two different metal oxides, wherein the first glass has a T g and T x , and wherein the difference between the T g and the T x of the first glass is at least 5K, the first glass comprising one of a CaO—Al 2 O 3 —ZrO 2 , BaO—TiO 2 , La 2 O 3 —TiO 2 , REO—Al 2 O 3 , REO—Al 2 O 3 —ZrO 2 , REO—Al 2 O 2 —ZrO 2 —SiO 2 , or SrO—Al 2 O 3 —ZrO 2 composition, and the glass containing less than 20% by weight SiO 2 , less than 20% by weight B 2 O 3 , and less than 40% by weight P 2 O 5 ; heating the first glass above the T g such that at least a portion of the glass wets at least a portion of the outer surface of the substrate, wherein the heating is conducted at least one temperature in a range from 725° C. to 1100° C.; and cooling the glass to provide an article comprising ceramic comprising the glass attached to the at least a portion of the outer surface of the substrate.