About: Structure and properties of potassium niobato-borophosphate glasses.

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About: Structure and properties of potassium niobato-borophosphate glasses. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Bulk glasses of the series (1-x)[0.5K2O-0.1B2O3-0.4P2O5]-xNb2O5 with x = 0-45.7 mol% Nb2O5 were prepared by slow cooling in air and investigated by Raman, 31P, and 11B MAS NMR spectroscopy. The incorporation of Nb2O5 into the parent borophosphate glass results in a substantial increase in the glass transition temperature and chemical durability of glasses. Raman spectra showed that Nb atoms form distorted NbO6 octahedra, which are isolated at low Nb2O5 content, whereas at higher Nb2O5 content they form clusters. 11B NMR spectra of the glasses revealed the interaction between Nb2O5 and BO4 tetrahedral units, which results in a partial transformation of tetrahedral BO4 units to trigonal BO3 units and the formation of mixed B(OP)4-n(ONb)n units. Bulk glasses of the series (1-x)[0.5K2O-0.1B2O3-0.4P2O5]-xNb2O5 with x = 0-45.7 mol% Nb2O5 were prepared by slow cooling in air and investigated by Raman, 31P, and 11B MAS NMR spectroscopy. The incorporation of Nb2O5 into the parent borophosphate glass results in a substantial increase in the glass transition temperature and chemical durability of glasses. Raman spectra showed that Nb atoms form distorted NbO6 octahedra, which are isolated at low Nb2O5 content, whereas at higher Nb2O5 content they form clusters. 11B NMR spectra of the glasses revealed the interaction between Nb2O5 and BO4 tetrahedral units, which results in a partial transformation of tetrahedral BO4 units to trigonal BO3 units and the formation of mixed B(OP)4-n(ONb)n units. (en) Práce se zabývá studiem stuktury skel kompoziční řady (1-x)[0.5K2O-0.1B2O3-0.4P2O5]-xNb2O5 (x = 0-45.7 mol% Nb2O5) připravených pomalým chladnutím skelné taveniny na vzduchu. Struktura skel byla studována pomocí Ramanovy, 31P a 11B MAS NMR spektroskopie. (cs)
Title	Structure and properties of potassium niobato-borophosphate glasses. Struktura a vlastnosti niobáto-borofosfátových skel. (cs) Structure and properties of potassium niobato-borophosphate glasses. (en)
skos:prefLabel	Structure and properties of potassium niobato-borophosphate glasses. Struktura a vlastnosti niobáto-borofosfátových skel. (cs) Structure and properties of potassium niobato-borophosphate glasses. (en)
skos:notation	RIV/00216275:25310/08:00007608!RIV09-GA0-25310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA104/07/0315), Z(MSM0021627501)
http://linked.open...iv/cisloPeriodika	2-9
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Koudelka, Ladislav Mošner, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	397822
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/08:00007608
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Raman spectroscopy; Phosphates; NMR, MAS-NMR and NQR; Short-range order (en)
http://linked.open.../riv/klicoveSlovo	MAS-NMR and NQR Short-range order Phosphates NMR Raman spectroscopy
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[76B4BAF23195]
http://linked.open...i/riv/nazevZdroje	Journal Non-Crystalline Solids
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Phosphate and borophosphate glasses with heavy metal oxides for applications in optoelectronics and photonics.
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	354
http://linked.open...iv/tvurceVysledku	Pospíšil, Jaroslav Koudelka, Ladislav Montagne, Lionel Mošner, Petr Delevoye, Laurent
http://linked.open...n/vavai/riv/zamer	Aimed preparation of special compounds and materials and investigation of their physical and chemical properties and supramolecular structures
issn	0022-3093
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	25310

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