Details of Grant 

EPSRC Reference:	GR/S40947/01
Title:	Dielectric Loss in Oxide Materials - Modelling and Experiment
Principal Investigator:	Alford, Professor N
Other Investigators:	Dunne, Professor LJ
Researcher Co-Investigators:
Project Partners:	Morgan Electro Ceramics Powerwave UK Ltd
Department:	Engineering Systems
Organisation:	London South Bank University
Scheme:	Standard Research (Pre-FEC)
Starts:	01 October 2003	Ends:	28 February 2007	Value (£):	202,695
EPSRC Research Topic Classifications:	Materials Characterisation
EPSRC Industrial Sector Classifications:	Communications Electronics Energy
Related Grants:
Panel History:
Summary on Grant Application Form
Current theories of dielectric loss to describe real materials suffer from certain problems. These are:a) The discrepancy (often orders of magnitude) between predicted values for dielectric loss and observed values.b) The discrepancy between the observed temperature dependence of the loss for both polycrystalline ceramics and single crystals with theory. c) The inability of the theory to cope with departure from symmetry. This includes the introduction of grain boundaries.The aim of this proposal is to carry out measurements of dielectric loss, relative permitivity, temperature coefficient of frequency, Raman, IR and wave speed on single crystals and polycrystalline oxides. These measurements will then be used to verify the modelling of losses in single crystals and polycrystalline dielectrics.
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Organisation Website:	http://www.lsbu.ac.uk