scholarly journals Experimental and numerical investigations of an oxygen single‐bubble shrinkage in a borosilicate glass‐forming liquid doped with cerium oxide

2020 ◽  
Vol 103 (12) ◽  
pp. 6736-6745
Author(s):  
Luiz Pereira ◽  
Jaroslav Kloužek ◽  
Miroslava Vernerová ◽  
Annabelle Laplace ◽  
Franck Pigeonneau
1986 ◽  
Vol 84 (1-3) ◽  
pp. 186-195 ◽  
Author(s):  
H.D. Schreiber ◽  
S.J. Kozak ◽  
R.C. Merkel ◽  
G.B. Balazs ◽  
P.W. Jones

1984 ◽  
Vol 67 (6) ◽  
pp. C-106-C-108 ◽  
Author(s):  
Henry D. Schreiber ◽  
G. Bryan Balazs ◽  
Barbara E. Carpenter ◽  
Janet E. Kirkley ◽  
Leslie M. Minnix ◽  
...  

2007 ◽  
Vol 75 (5) ◽  
Author(s):  
A. Grandjean ◽  
M. Malki ◽  
C. Simonnet ◽  
D. Manara ◽  
B. Penelon

2015 ◽  
Vol 656 ◽  
pp. 012019 ◽  
Author(s):  
Matthieu Guédra ◽  
Claude Inserra ◽  
Bruno Gilles ◽  
Jean-Christophe Béra

1996 ◽  
Vol 465 ◽  
Author(s):  
T. F. Meaker ◽  
D. K. Peeler ◽  
J. C. Marra ◽  
J. M. Pareizs ◽  
W. G. Ramsey

ABSTRACTImmobilization by vitrification is one potential disposition option for a portion of the United States’ excess plutonium inventory. Research has been performed to determine the glass forming region of a frit, plutonium and rare earth system. The frit contains mainly oxides of aluminum, silicon and boron; small amounts of ZrO2 and SrO are also included. The rare earth elements provide a flux to the glass during processing. The rare earths are also added as neutron absorbers (to prohibit criticality) in the final vitreous product.This report will show the compositional region, using Th as a Pu surrogate, that should be targeted in future studies for maximum Pu solubility in the lanthanide borosilicate glass system. Durability data and process variables will also be provided.


2019 ◽  
Vol 103 (4) ◽  
pp. 2453-2462 ◽  
Author(s):  
Luiz Pereira ◽  
Olivier Podda ◽  
Barbara Fayard ◽  
Annabelle Laplace ◽  
Franck Pigeonneau

Author(s):  
Gareth Thomas

Silicon nitride and silicon nitride based-ceramics are now well known for their potential as hightemperature structural materials, e.g. in engines. However, as is the case for many ceramics, in order to produce a dense product, sintering additives are utilized which allow liquid-phase sintering to occur; but upon cooling from the sintering temperature residual intergranular phases are formed which can be deleterious to high-temperature strength and oxidation resistance, especially if these phases are nonviscous glasses. Many oxide sintering additives have been utilized in processing attempts world-wide to produce dense creep resistant components using Si3N4 but the problem of controlling intergranular phases requires an understanding of the glass forming and subsequent glass-crystalline transformations that can occur at the grain boundaries.


Author(s):  
Matthew R. Libera ◽  
Martin Chen

Phase-change erasable optical storage is based on the ability to switch a micron-sized region of a thin film between the crystalline and amorphous states using a diffraction-limited laser as a heat source. A bit of information can be represented as an amorphous spot on a crystalline background, and the two states can be optically identified by their different reflectivities. In a typical multilayer thin-film structure the active (storage) layer is sandwiched between one or more dielectric layers. The dielectric layers provide physical containment and act as a heat sink. A viable phase-change medium must be able to quench to the glassy phase after melting, and this requires proper tailoring of the thermal properties of the multilayer film. The present research studies one particular multilayer structure and shows the effect of an additional aluminum layer on the glass-forming ability.


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