Strontium environment transition in tin silicate glasses by neutron and X-ray diffraction
Johnson, J. A., Urquidi, J., Holland, D., Johnson, C. E. and Appelyard, P. G.. (2007) Strontium environment transition in tin silicate glasses by neutron and X-ray diffraction. Journal of Non-Crystalline Solids, Vol.353 (No.44-46). pp. 4084-4092. ISSN 0022-3093Full text not available from this repository.
Official URL: http://dx.doi.org/10.1016/j.jnoncrysol.2007.06.015
The effect of Sr modifier atoms on the structure of stannosilicate glasses of composition (Sr0)(x)(SnO)(0.5-x)(SiP2)(0.5), with 0 <= x <= 0.15, has been studied using Mossbauer spectroscopy and neutron and X-ray diffraction. The tin is mostly in the Sn2+ state. The Sr-O bond length undergoes a step decrease from (2.640 +/- 0.005) angstrom to (2.585 +/- 0.005) angstrom as x increases from 0.10 to 0.15, indicating a decrease in coordination number from 8 to 7. A Sn-Sn distance of 3.507 +/- 0.005 angstrom is revealed by a first-order difference calculation from the x = 0 sample. This is too short to be consistent with significant edge sharing of [SnO3] trigonal pyramids.
|Item Type:||Journal Article|
|Subjects:||T Technology > TP Chemical technology
T Technology > TA Engineering (General). Civil engineering (General)
|Divisions:||Faculty of Science > Physics|
|Journal or Publication Title:||Journal of Non-Crystalline Solids|
|Publisher:||Elsevier Science BV|
|Official Date:||15 November 2007|
|Number of Pages:||9|
|Page Range:||pp. 4084-4092|
|Access rights to Published version:||Restricted or Subscription Access|
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