Role of titanium in TiO2:SiO2 sol-gels: An x-ray diffraction study

Rigden, Jane S. and Newport, Robert J. and Smith, Mark E. and Dirken, Peter J. and Bushnell-Wye, Graham (1995) Role of titanium in TiO2:SiO2 sol-gels: An x-ray diffraction study. In: 2nd International Conference on Materials Chemistry (MC2), July 1995, Kent, England. (Access to this publication is restricted)

Restricted to Repository staff only
Contact us about this Publication Download (14MB)
Official URL


Transmission X-ray diffraction has been used to study a series of powdered silica:titania sol-gel glasses with titania contents ranging from a 'pure' silica sample through to high titania levels where phase separation is predicted to occur. Analysis of the data reveals a change in second- and: third-neighbour coordination numbers with increasing Ti content and confirms that for low titanium contents the sol-gels are atomically mixed. The lower titanium content sol-gels have also been studied as spun thin films using shallow-angle X-ray diffraction. Comparison with the transmission studies shows an increase in disorder in the silica network when the material is in the form of a coating rather than in the bulk. An increase in the nun;ber of Si-O-H bonds is also suggested.

Item Type: Conference or workshop item (Paper)
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Depositing User: J.M. Smith
Date Deposited: 29 Apr 2009 13:59
Last Modified: 09 Jun 2014 11:03
Resource URI: (The current URI for this page, for reference purposes)
  • Depositors only (login required):