scholarly journals Permanent Densification of Calcium Aluminophosphate Glasses

2019 ◽  
Vol 6 ◽  
Author(s):  
Saurabh Kapoor ◽  
Randall E. Youngman ◽  
Lina Ma ◽  
Nadja Lönnroth ◽  
Sylwester J. Rzoska ◽  
...  
Keyword(s):  
Aluminophosphate Glasses ◽  
Permanent Densification

Aluminophosphate Glasses with High Sulfate Content

1994 ◽  
Vol 353 ◽  
Author(s):  
Sergey V. Stefanovsky ◽  
Igor A. Ivanov ◽  
Anatolii N. Gulin
Keyword(s):  
Diffusion Coefficients ◽  
Glass Structure ◽  
Chemical Durability ◽  
Electric Resistivity ◽  
Melting Points ◽  
Sulfate Content ◽  
Leach Rate ◽  
High Sulfate ◽  
Aluminophosphate Glasses ◽  
And Diffusion

AbstractTo immobilize a high sulfate radioactive wastes a system Na2O-A12O3-P2O5-SO3 has been chosen as one where glasses have a relatively low melting points and good chemical durability. Glasses within partial system 44 Na2O, 20 A12O3 (36-x) P2O5 x SO3 have been prepared at 1000 °C. A possibility of assimilation up to 12 mole % of SO3 has been established. The basic properties of sulfate-containing glasses as density, microhardness, thermal expansion coefficient, transformation and deformation temperatures, viscosity, electric resistivity, leach rate of ions and diffusion coefficients of 22Na, 35S, 90Sr and 137Cs have been measured. Glass structure by infrared and EPR spectroscopies has been investigated.

Structure and radiative properties of aluminophosphate glasses

1994 ◽  
Vol 29 (17) ◽  
pp. 4577-4582 ◽  
Author(s):  
Sang Won Lee ◽  
Kun Sang Ryoo ◽  
Jung Eun Kim ◽  
Jeong Hoon Lee ◽  
Chong Don Kim ◽  
...  
Keyword(s):  
Radiative Properties ◽  
Aluminophosphate Glasses

Ab initio simulation of permanent densification in silica glass

2017 ◽  
Vol 96 (5) ◽  
Author(s):  
Emina Ryuo ◽  
Daisuke Wakabayashi ◽  
Akihide Koura ◽  
Fuyuki Shimojo
Keyword(s):  
Ab Initio ◽  
Silica Glass ◽  
Ab Initio Simulation ◽  
Permanent Densification

Permanent densification of compressed silica glass: a Raman-density calibration curve

2012 ◽  
Vol 25 (2) ◽  
pp. 025402 ◽  
Author(s):  
T Deschamps ◽  
A Kassir-Bodon ◽  
C Sonneville ◽  
J Margueritat ◽  
C Martinet ◽  
...  
Keyword(s):  
Calibration Curve ◽  
Silica Glass ◽  
Permanent Densification

Structure and properties of high Li2O-containing aluminophosphate glasses

2009 ◽  
Vol 29 (10) ◽  
pp. 1895-1902 ◽  
Author(s):  
Florian Moreau ◽  
Alicia Durán ◽  
Francisco Muñoz
Keyword(s):  
Structure And Properties ◽  
Aluminophosphate Glasses

The relationship between magnetism and magneto-optical effects in rare earth doped aluminophosphate glasses

2016 ◽  
Vol 49 (7) ◽  
pp. 075001 ◽  
Author(s):  
M Valeanu ◽  
M Sofronie ◽  
A C Galca ◽  
F Tolea ◽  
M Elisa ◽  
...  
Keyword(s):  
Rare Earth ◽  
Optical Effects ◽  
Aluminophosphate Glasses ◽  
The Relationship ◽  
Rare Earth Doped

Effects of indenter geometry on indentation-induced densification of soda-lime glass

2010 ◽  
Vol 25 (11) ◽  
pp. 2203-2211 ◽  
Author(s):  
Satoshi Yoshida ◽  
Hiroshi Sawasato ◽  
Toru Sugawara ◽  
Yoshinari Miura ◽  
Jun Matsuoka
Keyword(s):  
Permanent Deformation ◽  
Soda Lime ◽  
Oxide Glass ◽  
Soda Lime Glass ◽  
Shape Dependence ◽  
Diamond Indenter ◽  
Deformation Modes ◽  
Permanent Densification ◽  
Indenter Shape ◽  
Indentation Imprint

Hardness of glass is known to be related to the resistance to permanent deformation. However, the mechanism of permanent deformation of glass under a sharp diamond indenter is not clear yet. One of the deformation modes of oxide glass at room temperature is permanent densification. In this study, the indentation-induced densification of soda-lime glass under diamond indenters was evaluated from the volume recovery of indentation imprint by thermal annealing. The volume change of the indentation imprint by annealing corresponds to the densified volume under the indenter. Using some kinds of diamond indenters, which have different inclined face angles, the ratios of densified volume to the total “lost” volume under the indenters were determined. With an increase in the inclined face angle, the densification contribution decreased and the shear-flow contribution increased. This indenter-shape dependence of densification in glass is discussed in terms of the stress dependence of the deformation mechanisms in glass.

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