Vacuum insulated glazing units and methods for producing the same

A vacuum insulated glazing unit comprising:

• a first pane;
• a second pane;
• a primary seal joining the first pane to the second pane along and adjacent perimeters thereof, wherein the primary seal defines a path that is continuous about the perimeters of the first pane and the second pane with an exception for an evacuation tube;
• wherein an intermediate space is defined between the first pane, the second pane, the primary seal;
• support pillars fixed in positions between the first pane and the second pane;
• and
• the evacuation tube located in the space through the primary seal and between the first pane and the second pane, the evacuation tube including a first opening within the intermediate space, a second opening external to the intermediate space, and a passage therebetween, wherein the passage is sealed;
• wherein the intermediate space is hermetically sealed by the first pane, the second pane, the primary seal, and the evacuation tube to maintain a low-pressure environment therein.

A vacuum insulated glazing unit comprising:

• a first pane;
• a second pane;
• a primary seal joining the first pane to the second pane along and adjacent perimeters thereof, wherein the primary seal includes a first glass material having a closed pore structure;
• a secondary seal between the first pane and the second pane, wherein the secondary seal includes a second glass material having an open pore structure, wherein the secondary seal is configured to function as a getter material due to the open pore structure;
• support pillars fixed in positions between the first pane and the second pane;
• and
• wherein an intermediate space is defined between the first pane, the second pane, and the primary seal, wherein the intermediate space is hermetically sealed by the first pane, the second pane, and the primary seal to maintain a low-pressure environment therein.