ChemInform Abstract: High-Temperature Electrochemical Synthesis of Group VI-A Metal Borides in Halide-Oxide Melts.

ChemInform ◽  
2010 ◽  
Vol 28 (20) ◽  
pp. no-no
Author(s):  
V. V. MALYSHEV ◽  
N. N. USKOVA ◽  
V. I. SHAPOVAL
ChemInform ◽  
2010 ◽  
Vol 28 (21) ◽  
pp. no-no
Author(s):  
V. V. MALYSHEV ◽  
R. V. KUPRINA ◽  
I. A. NOVOSELOVA ◽  
T. V. VERKHOVLYUK

2000 ◽  
Vol 72 (11) ◽  
pp. 2127-2136 ◽  
Author(s):  
Paul C. Nordine ◽  
J. K. Richard Weber ◽  
Johan G. Abadie

Containerless conditions allow well-controlled investigation of liquids at high temperatures. Levitation methods used for this purpose are reviewed, and their application is illustrated by discussion of the properties and behavior of deeply undercooled yttrium-aluminum-oxide melts.


2016 ◽  
Vol 3 (9) ◽  
pp. 3104-3113 ◽  
Author(s):  
T. S. R. Ch. Murthy ◽  
J. K. Sonber ◽  
K. Sairam ◽  
R.D. Bedse ◽  
J.K. Chakarvartty

2014 ◽  
Vol 70 (a1) ◽  
pp. C1332-C1332
Author(s):  
Chris Benmore ◽  
Lawrie Skinner ◽  
Oliver Alderman ◽  
Anthony Tamalonis ◽  
J.K. Weber ◽  
...  

Aerodynamic levitation with laser heating has now become a standard technique for studying the structure of oxide melts on synchrotron and neutron beamlines. Here we summarize the results of a growing number of findings that show a distinct decrease in the local cation-oxygen coordination number, for liquid state single and binary oxides, compared to their crystalline forms. This phenomenon is often correlated with a significant decrease in density upon melting and diffraction measurements show a distribution of lower coordinated polyhedra. The diffraction data allow us to refine interatomic potential parameters within molecular dynamics simulations to obtain very good agreement between the structural models and experiments. The feasibility of very high temperature experiments around and above 3000 degrees Celsius, as well as the safety aspects associated with measuring radioactive samples will be discussed. Future prospects on changing the oxidation state of high temperature oxide melts through reduction-oxidation reactions will also be considered. The photograph below shows a Uranium dioxide pellet being loaded into the aerodynamic levitator on a high energy x-ray beam line at the APS prior to melting.


Sign in / Sign up

Export Citation Format

Share Document