caa a22 4500 463225597 CHVBK 20180405153226.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s10853-007-1815-3 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1815-3 The effect of caesium on barium hollandites studied by neutron diffraction and magic-angle spinning (MAS) nuclear magnetic resonance [Elektronische Daten] [Karl Whittle, Sharon Ashbrook, Gregory Lumpkin, Ian Farnan, Ronald Smith, Simon Redfern] The structural effects of incorporating Cs into the monoclinic and tetragonal hollandites Ba1.2−x Cs x Mg1.2−x/2Ti6.8+x/2O16 and Ba1.2−x Cs x Al2.4−x Ti5.6+x O16 have been studied using powder neutron diffraction and 133Cs and 27Al MAS NMR. Addition of Cs to the monoclinic structure induces a ‘shear-type collapse', in agreement with previously published results. NMR spectra show that the addition of Cs does not change the local structure around the Al cations within the tunnel walls. An algorithm is given that allows a prediction of unit cell parameters to be made for tetragonal hollandites containing barium. Springer Science+Business Media, LLC, 2007 Whittle Karl Department of Earth Sciences, Cambridge Centre for Ceramic Immobilisation, University of Cambridge, Downing Street, CB2 3EQ, Cambridge, UK aut Ashbrook Sharon Department of Earth Sciences, Cambridge Centre for Ceramic Immobilisation, University of Cambridge, Downing Street, CB2 3EQ, Cambridge, UK aut Lumpkin Gregory Department of Earth Sciences, Cambridge Centre for Ceramic Immobilisation, University of Cambridge, Downing Street, CB2 3EQ, Cambridge, UK aut Farnan Ian Department of Earth Sciences, Cambridge Centre for Ceramic Immobilisation, University of Cambridge, Downing Street, CB2 3EQ, Cambridge, UK aut Smith Ronald ISIS Facility, Rutherford Appleton Laboratory, OX11 0QX, Chilton, Didcot, Oxfordshire, UK aut Redfern Simon Department of Earth Sciences, Cambridge Centre for Ceramic Immobilisation, University of Cambridge, Downing Street, CB2 3EQ, Cambridge, UK aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/22(2007-11-01), 9379-9391 0022-2461 42:22<9379 2007 42 10853 https://doi.org/10.1007/s10853-007-1815-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1815-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Whittle Karl Department of Earth Sciences, Cambridge Centre for Ceramic Immobilisation, University of Cambridge, Downing Street, CB2 3EQ, Cambridge, UK aut NATIONALLICENCE 700 1- Ashbrook Sharon Department of Earth Sciences, Cambridge Centre for Ceramic Immobilisation, University of Cambridge, Downing Street, CB2 3EQ, Cambridge, UK aut NATIONALLICENCE 700 1- Lumpkin Gregory Department of Earth Sciences, Cambridge Centre for Ceramic Immobilisation, University of Cambridge, Downing Street, CB2 3EQ, Cambridge, UK aut NATIONALLICENCE 700 1- Farnan Ian Department of Earth Sciences, Cambridge Centre for Ceramic Immobilisation, University of Cambridge, Downing Street, CB2 3EQ, Cambridge, UK aut NATIONALLICENCE 700 1- Smith Ronald ISIS Facility, Rutherford Appleton Laboratory, OX11 0QX, Chilton, Didcot, Oxfordshire, UK aut NATIONALLICENCE 700 1- Redfern Simon Department of Earth Sciences, Cambridge Centre for Ceramic Immobilisation, University of Cambridge, Downing Street, CB2 3EQ, Cambridge, UK aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/22(2007-11-01), 9379-9391 0022-2461 42:22<9379 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer