Go toArchive
Browse byFacets
Bookbag ( 0 )
'X ray Scattering' in keywords Facet   Publication Year 2001  [X]
Results  1 Item
Sorted by   
Publication Year
1Author    Z. NaturforschRequires cookie*
 Title    A Neutron and X-ray Diffraction Study of the Structure of Nd Phosphate Glasses  
 Abstract    Diffraction experiments were performed on two (Nd203)x(P205)i_ x glasses for studying the en­ vironmental order of the Nd3+ cations. In case of the metaphosphate glass (x = 0.25) a combination of X-ray and neutron diffraction data was used to separate the N d-0 and 0 -0 first neighbor peaks. An N d-0 coordination number of 6.6±0.3 and a mean N d-0 distance of (0.239±0.001) nm were determined. In the ultraphosphate glass studied (x = 0.20) these values increase to 6.9±0.3 and (0.240±0.001) nm where the N d-0 coordination number is equal to the number of terminal oxygen atoms (0 T) which are available for coordination of each Nd3+ cation. This indicates the formation of NdOn polyhedra not sharing any O atom where also all 0 T's are in N d-0T-P positions. In the metaphosphate glass the NdO" polyhedra have to share some 0 T sites. 
  Reference    Z. Naturforsch. 56a, 237—243 (2001); received January 8 2001 
  Published    2001 
  Keywords    Neutron Scattering, X-ray Scattering, Short-range Order, Phosphate Glasses 
  Similar Items    Find
 TEI-XML for    default:Reihe_A/56/ZNA-2001-56a-0237.pdf 
 Identifier    ZNA-2001-56a-0237 
 Volume    56