Vacuum glazing is a vital development in the move to more energy efficient buildings.
In vacuum glazing, an evacuated cavity supresses gaseous conduction and convection to
provide high thermal resistance. A high vacuum pressure (less than 0.1 Pa) is required
and must be maintained by a hermetic seal around the periphery, currently formed with
either indium (i.e. low temperature sealing method) or solder glass (i.e. high
temperature sealing method). This thesis reports the results of an experimental and
theoretical investigation into the development of new low temperature (less than 200˚C)
and novel high temperature (up to 450˚C) glass edge seals. A new low temperature
composite edge seal was developed in which double and triple vacuum glazings each of
dimensions 300x300mm were fabricated with measured vacuum pressures of
4.6x10-2Pa and 4.8x10-2Pa achieved respectively. A three dimensional finite element
model of the fabricated design of composite edge sealed triple vacuum glazing was
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.