A method of manufacturing a strengthened glass article includes forming a glass-to-glass laminate by fusing clad and core glasses, where the clad has greater high-temperature coefficient of thermal expansion (HTCTE) than the core but a lesser low-temperature coefficient of thermal expansion (LTCTE). The method includes cooling the laminate to impart stresses through contraction mismatch between the clad and core, where stresses in the laminate from HTCTE differences at least partially offset stresses in the laminate from LTCTE. After the cooling, the method includes modifying geometry of the laminate, then relaxing at least some of the stresses in the glass-to-glass laminate from differences in the HTCTE.

A method of manufacturing a strengthened glass article includes forming a glass-to-glass laminate by fusing clad and core glasses, where the clad has greater high-temperature coefficient of thermal expansion (HTCTE) than the core but a lesser low-temperature coefficient of thermal expansion (LTCTE). The method includes cooling the laminate to impart stresses through contraction mismatch between the clad and core, where stresses in the laminate from HTCTE differences at least partially offset stresses in the laminate from LTCTE. After the cooling, the method includes modifying geometry of the laminate, then relaxing at least some of the stresses in the glass-to-glass laminate from differences in the HTCTE.

A glass composition includes from about 50 mol. % to about 70 mol. % SiO.sub.2, from about 0.1 mol. % to about 10 mol. % Al.sub.2O.sub.3, from about 5 mol. % to about 25 mol. % B.sub.2O.sub.3, and from about 10 mol. % to about 30 mol. % of a modifier, wherein the modifier is at least one of Na.sub.2O, K.sub.2O and CaO.

A glass composition includes from about 50 mol. % to about 70 mol. % SiO.sub.2, from about 0.1 mol. % to about 10 mol. % Al.sub.2O.sub.3, from about 5 mol. % to about 25 mol. % B.sub.2O.sub.3, and from about 10 mol. % to about 30 mol. % of a modifier, wherein the modifier is at least one of Na.sub.2O, K.sub.2O and CaO.

A quartz glass crucible (1) includes: a crucible body (10) made of silica glass; and a crystallization-accelerator-containing layer (13) formed on an outer surface of the crucible body (10). A concentration of a crystallization accelerator contained in the crystallization-accelerator-containing layer (13) is 1.0×10.sup.13 atoms/cm.sup.2 or more and 4.8×10.sup.15 atoms/cm.sup.2 or less. The quarts glass crucible is intended to be capable of not only enduring a single crystal pulling-up process that takes a very long time, such as multi-pulling, but also stably controlling the oxygen concentration and crystal diameter of a silicon single crystal by eliminating a gap between the carbon susceptor and the crucible as much as possible.

A laminated glass article includes a glass core layer and a glass cladding layer adjacent to the glass core layer. At least one of the glass core layer or the glass cladding layer is a tinted layer. The tinted layer can include a tinting agent that imparts a color to the tinted layer.

A laminated glass article includes a glass core layer and a glass cladding layer adjacent to the glass core layer. At least one of the glass core layer or the glass cladding layer is a tinted layer. The tinted layer can include a tinting agent that imparts a color to the tinted layer.

A ceramic printing ink is provided that is suitable for application using an inkjet printing process to produce a coating on glass ceramics. The ink includes a glassy material of glass particles and pigment particles. The glass particles are present in a ratio of total weight to the pigment particles of at least 1.5 and less than 19. The glass particles have an equivalent diameter d.sub.90 ranging from at least 0.5 μm to at most 5 μm. The ink has an effective coefficient of linear thermal expansion, α.sub.20-300,eff, in a range from 6.5*10.sup.−6/K to 11*10.sup.−6/K.

A ceramic printing ink is provided that is suitable for application using an inkjet printing process to produce a coating on glass ceramics. The ink includes a glassy material of glass particles and pigment particles. The glass particles are present in a ratio of total weight to the pigment particles of at least 1.5 and less than 19. The glass particles have an equivalent diameter d.sub.90 ranging from at least 0.5 μm to at most 5 μm. The ink has an effective coefficient of linear thermal expansion, α.sub.20-300,eff, in a range from 6.5*10.sup.−6/K to 11*10.sup.−6/K.

An electronic package assembly includes a glass substrate including an upper glass cladding layer, a lower glass cladding layer, a glass core layer coupled to the upper glass cladding layer and the lower glass cladding layer, where the upper glass cladding layer and the lower glass cladding layer have a higher etch rate in an etchant than the glass core layer, a first cavity positioned within one of the upper glass cladding layer or the lower glass cladding layer, and a second cavity positioned within one of the upper glass cladding layer or the lower glass cladding layer, a microprocessor positioned within the first cavity, and a micro-electronic component positioned within the second cavity.