Methods for producing localized crystallization in glass articles and glass articles formed therefrom

A method for producing localized crystallization in a glass article, the method comprising:

• depositing a nucleation catalyst onto at least a portion of a surface of a first glass article to form an at least partially coated surface, wherein the nucleation catalyst is in a solution or in a slurry;
• fusing a second glass article to the first glass article to form a fused glass article, wherein the at least partially coated surface is positioned at an interface between the first glass article and the second glass article;
• heating the fused glass article to a nucleation temperature;
• holding the fused glass article at the nucleation temperature to form a locally crystallized glass article comprising a crystalline phase and a non-crystalline phase, wherein one or more portions of the locally crystallized glass article adjacent to the nucleation catalyst comprise the crystalline phase and a remainder of the locally crystallized glass article comprises the non-crystalline phase;
• and
• cooling the locally crystallized glass article.