Mechanical relaxation anomalies in mixed alkali oxides

1998 ◽  
Vol 231 (1-2) ◽  
pp. 89-98 ◽  
Author(s):  
Peter F Green ◽  
David L Sidebottom ◽  
Richard K Brow ◽  
James J Hudgens
Keyword(s):  
Mechanical Relaxation ◽  
Mixed Alkali ◽  
Alkali Oxides

Sintering-viscosity relation for mixed-alkali glass powder compacts

1995 ◽  
Vol 10 (7) ◽  
pp. 1846-1849 ◽  
Author(s):  
Ki-Dong Kim
Keyword(s):  
Glass Powder ◽  
Sintering Temperature ◽  
Glass Composition ◽  
Characteristic Point ◽  
Constant Heating Rate ◽  
Mixed Alkali ◽  
Alkali Glass ◽  
Alkali Oxides ◽  
Constant Heating ◽  
Powder Compacts

The sintering of glass powder compacts was studied by dilatometer in the (25 - x) Na2O–xK2O–75SiO2 glass system. The dilatometrically determined sintering temperature (Tsin) at constant heating rate decreases and the shrinkage at isothermal sintering increases when Na2O is replaced by K2O up to the mole fraction of K2O/(Na2O + K2O) = 0.5. This is due to the decrease in viscosity and means that sintering can be possibly accelereted by introduction of mixed alkali oxides in this system. According to calculation using the VFT-equation, the viscosity value at Tsin is almost independent of glass composition. From these results it may be supposed that the dilatometrically determined sintering begin temperature (Tsin) can be a characteristic point for the sintering of glass.

scholarly journals Survey of optical and fluorescence traits of Tm3+-doped alkali/mixed alkali oxides constituting B2O3-BaO-ZnO-LiF glasses for 0.45 μm laser and 1.46 μm fiber amplifier

2021 ◽  
pp. 104343
Author(s):  
G. Lakshminarayana ◽  
A.N. Meza-Rocha ◽  
O. Soriano-Romero ◽  
E.F. Huerta ◽  
U. Caldiño ◽  
...  
Keyword(s):  
Fiber Amplifier ◽  
Mixed Alkali ◽  
Alkali Oxides

Study of the ?-Mechanical Relaxation in Molecular Glass-Forming Liquids

1997 ◽  
Vol 7 (11) ◽  
pp. 1635-1650 ◽  
Author(s):  
A. Faivre ◽  
L. David ◽  
J. Perez
Keyword(s):  
Mechanical Relaxation ◽  
Glass Forming ◽  
Molecular Glass

MECHANICAL RELAXATION OF SUBSTITUTIONAL-INTERSTITIAL (TETRAHEDRAL) ATOM COMPLEXES IN THE bcc LATTICE

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-787-C5-792 ◽  
Author(s):  
M. Koiwa ◽  
S. Ishioka ◽  
G. Cannelli ◽  
R. Cantelli
Keyword(s):  
Mechanical Relaxation ◽  
Bcc Lattice

Microwave spectroscopy of mixed alkali halide dimers: LiNaF2

1996 ◽  
Vol 105 (22) ◽  
pp. 9754-9761 ◽  
Author(s):  
S. Biermann ◽  
J. Hoeft ◽  
T. Törring ◽  
R. Mawhorter ◽  
F. J. Lovas ◽  
...  
Keyword(s):  
Alkali Halide ◽  
Microwave Spectroscopy ◽  
Mixed Alkali

scholarly journals Effects of Na2O on optical and radiation shielding properties of xNa2O-(20-x)K2O-30V2O5-50TeO2 mixed alkali glasses

2021 ◽  
Vol 22 ◽  
pp. 103946
Author(s):  
S.J. Japari ◽  
M.I. Sayyed ◽  
A.K. Yahya ◽  
A.L. Anis ◽  
S.M. Iskandar ◽  
...  
Keyword(s):  
Radiation Shielding ◽  
Mixed Alkali ◽  
Shielding Properties
Sign in / Sign up

Export Citation Format

Share Document