The thermal stabilities, physical and optical properties of xK(2)O-(14-x)Na2O-14Nb(2)O(5)-72TeO(2) (x = 0 similar to 12 mol%) glasses have been studied. The glasses consisting of ca. 10 mol% K2O show high thermal stabilities with values of Delta T = Tx - Tg = ca. 105 degrees C against crystallization, where Tg and Tx are the glass transition and crystallization onset temperatures, respectively. The activation energy of grain growth of a cubic crystalline phase in the 10K(2)O-4Na(2)O-14Nb(2)O(5)-72TeO(2) glass was 7.92 kJ/mol. The energy required for the phase transformation from the 10K(2)O-4Na(2)O-14Nb(2)O(5)-72TeO(2) glass to the cubic crystalline phase was 190.74 kJ/mol. The optical and physical properties of the K2O-Na2O-Nb2O5-TeO2 glas...
The heat capacity (Cp) change in the glass transition region for the xNa2O · (100−x)TeO2, mol%, glas...
High refractive index glasses with nominal composition of 0.35La(2)O(3)-(0.65-x)Nb2O5-xTa(2)O(5) (x0...
Transparent glasses having molar composition (23−x)K2O·xNa2O·27Nb2O5·50SiO2 (x=0, 5, 10, 15 and 23) ...
The thermal stabilities, physical and optical properties of xK(2)O-(14-x)Na2O-14Nb(2)O(5)-72TeO(2) (...
In order to develop a new type of nonlinear optical materials or photocatlaysts, Na2O-Nb2O5-TeO2 gla...
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2008Thesis (M.Sc.) -- ...
The FTIR, Raman, UV-Vis, P-31 MAS-NMR, DTA, and refractive index measurements have been combined to ...
In this work, optical, thermal, thermo-optical and spectroscopic properties of the 80TeO(2)-(20-x)Li...
Optically clear glasses of various compositions in the system (100-x) TeO2-x(1.5K(2)O-Li2O-2.5Nb(2...
Crystallization behavior of potassium niobium silicate (KNS) glasses having compositions expressed b...
To develop and utilize TeO2-based glasses as nonlinear optical materials or matrix glasses, xK2O- (1...
The crystn. of the xK2O.xNb2O5.(1-2x)SiO2 (x = 0.167 - 0.250) glasses and glasses close in compn. to...
A series of fluorotellurite glasses based on 70TeO2–5MxOy–10P2O5–10ZnO–5PbF2 in mol%, where MxOy = (...
The crystallization of the K2O . Nb2O5. 2SiO2 (KNS-50) glass has been studied by DTA, XRD, SEM and F...
23K2O-27Nb2O5-50SiO2 (KNS), 13K2O-10Na2O-27Nb2O5-50SiO2 (KNaNS) and 15K2O-12Li2O-27Nb2O5-46SiO2 (KLi...
The heat capacity (Cp) change in the glass transition region for the xNa2O · (100−x)TeO2, mol%, glas...
High refractive index glasses with nominal composition of 0.35La(2)O(3)-(0.65-x)Nb2O5-xTa(2)O(5) (x0...
Transparent glasses having molar composition (23−x)K2O·xNa2O·27Nb2O5·50SiO2 (x=0, 5, 10, 15 and 23) ...
The thermal stabilities, physical and optical properties of xK(2)O-(14-x)Na2O-14Nb(2)O(5)-72TeO(2) (...
In order to develop a new type of nonlinear optical materials or photocatlaysts, Na2O-Nb2O5-TeO2 gla...
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2008Thesis (M.Sc.) -- ...
The FTIR, Raman, UV-Vis, P-31 MAS-NMR, DTA, and refractive index measurements have been combined to ...
In this work, optical, thermal, thermo-optical and spectroscopic properties of the 80TeO(2)-(20-x)Li...
Optically clear glasses of various compositions in the system (100-x) TeO2-x(1.5K(2)O-Li2O-2.5Nb(2...
Crystallization behavior of potassium niobium silicate (KNS) glasses having compositions expressed b...
To develop and utilize TeO2-based glasses as nonlinear optical materials or matrix glasses, xK2O- (1...
The crystn. of the xK2O.xNb2O5.(1-2x)SiO2 (x = 0.167 - 0.250) glasses and glasses close in compn. to...
A series of fluorotellurite glasses based on 70TeO2–5MxOy–10P2O5–10ZnO–5PbF2 in mol%, where MxOy = (...
The crystallization of the K2O . Nb2O5. 2SiO2 (KNS-50) glass has been studied by DTA, XRD, SEM and F...
23K2O-27Nb2O5-50SiO2 (KNS), 13K2O-10Na2O-27Nb2O5-50SiO2 (KNaNS) and 15K2O-12Li2O-27Nb2O5-46SiO2 (KLi...
The heat capacity (Cp) change in the glass transition region for the xNa2O · (100−x)TeO2, mol%, glas...
High refractive index glasses with nominal composition of 0.35La(2)O(3)-(0.65-x)Nb2O5-xTa(2)O(5) (x0...
Transparent glasses having molar composition (23−x)K2O·xNa2O·27Nb2O5·50SiO2 (x=0, 5, 10, 15 and 23) ...