|
1
|
Zotov N, Schlenz H, Brendebacha B, Modrowa H, Hormesa J, Reinauerc F, Glaumc R, Kirfel A, Paulmannd C. Effects Of Mno-Doping On The Structure Of Sodium Metaphosphate Glasses. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/zna-2003-7-806] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A combined structural study on ternary phosphate glasses (MnO)x(NaPO3)1−x, x = 0.0, 0.024, 0.048, 0.167, is performed using X-ray diffraction, EXAFS and Raman spectroscopy. The mean Mn-O nearest-neighbour distance and the Mn-O coordination number in the glass with 16.7 mol% MnO are 2.15(2) °A and 5.7±0.4, respectively. Depolymerization of the metaphosphate chains in the NaPO3 glass structure is observed with increasing MnO content by Raman scattering. This leads to a strong decrease of the average chain length and a small decreasing of the average P-O-P bridging angle with increasing MnO content.
Collapse
Affiliation(s)
- N. Zotov
- Mineralogisch-Petrologisches Institut, Universit¨at Bonn, Poppelsdorfer Schloss, D-53115 Bonn, Germany
| | - H. Schlenz
- Mineralogisch-Petrologisches Institut, Universität Bonn, Poppelsdorfer Schloss, D-53115 Bonn, Germany
| | - B. Brendebacha
- Physikalisches Institut, Universität Bonn, D-53115 Bonn, Germany
| | - H. Modrowa
- Physikalisches Institut, Universität Bonn, D-53115 Bonn, Germany
| | - J. Hormesa
- Physikalisches Institut, Universit¨at Bonn, D-53115 Bonn, Germany
- Center for Advanced Microstructures and Devices, 70806 Baton Rouge, LA, U. S. A
| | - F. Reinauerc
- Institut für Anorganische Chemie, Universität Bonn, D-53121 Bonn, Germany
| | - R. Glaumc
- Institut für Anorganische Chemie, Universität Bonn, D-53121 Bonn, Germany
| | - A. Kirfel
- Mineralogisch-Petrologisches Institut, Universität Bonn, Poppelsdorfer Schloss, D-53115 Bonn, Germany
| | - C. Paulmannd
- Mineralogisch-Petrologisches Institut, Universität Hamburg, D-20146 Hamburg, Germany
| |
Collapse
|