Vacuum insulated glass (VIG) unit including nano-composite pillars, and/or methods of making the same
View Patent ↗Certain example embodiments of this invention relate to composite pillar arrangements for VIG units that include both harder and softer materials. The softer materials are located on the outside or extremities of the central, harder pillar material. In certain example embodiments, a high aspect ratio mineral lamellae is separated by an organic “glue” or polymer. When provided around a high strength pillar, the combination of the pillar and such a nano-composite structure may advantageously result in superior strength compared to a monolithic system, e.g., where significant wind loads, thermal stresses, and/or the like are encountered.
1. A vacuum insulated glass (VIG) unit, comprising:
first and second substantially parallel, spaced apart glass substrates defining a gap therebetween;
an edge seal provided proximate a periphery of the first and second substrates to form a seal;
a plurality of spacers provided between the first and second substrates, each said spacer being at least partially laminated with a material comprising carbon nanotubes (CNTs) to impart closure stresses on the first and/or second substrates proximate to the spacer to at least partially offset tensile stresses also applied to the first and/or second glass substrates,
wherein the gap is provided at a pressure less than atmospheric.
2. The VIG unit of claim 1 , wherein the CNTs are provided on one or both bases of the spacers such that the CNTs are generally perpendicular thereto.
3. A vacuum insulated glass (VIG) window unit comprising:
first and second substantially parallel spaced apart glass substrates defining a gap therebetween;
an edge seal provided proximate a periphery of the first and second substrates to form a seal;
a plurality of spacers provided between the first and second substrates for helping maintain the gap between the first and second substrates, each said spacer comprising a carbon nanotube (CNT); and
wherein the gap between the first and second substrates is provided at a pressure less than atmospheric.
4. The VIG window unit of claim 3 , further comprising a getter in communications with the gap.
5. The VIG window unit of claim 3 , wherein said spacers are arranged in an array between the first and second substrates.
6. The VIG window unit of claim 3 , wherein at least one of the glass substrates is tempered.