SOME FACTORS DETERMINING INCIPIENT SUPERHEATS IN ALKALINE METALS

1974 ◽  
Author(s):  
A. Leonov ◽  
V. F. Prisnyakov ◽  
A. Voropay
Keyword(s):  
Alkaline Metals

Analogues of the active and inactive sodium carbonate

1982 ◽  
Vol 47 (12) ◽  
pp. 3348-3361 ◽  
Author(s):  
Erich Lippert ◽  
Karel Mocek ◽  
Emerich Erdös
Keyword(s):  
Thermal Decomposition ◽  
Time Dependence ◽  
Water Vapour ◽  
Sulphur Dioxide ◽  
Atmospheric Pressure ◽  
Flow Reactor ◽  
Kinetic Measurements ◽  
Sodium Potassium ◽  
Alkaline Metals ◽  
Hydrogen Carbonates

The reactivity of the anhydrous carbonates of alkaline metals with sulphur dioxide has been studied experimentally in dependence both on the nature of the cation and on the way of preparation of the anhydrous carbonate. The carbonates were prepared either by thermal decomposition of hydrogen carbonates or by thermal dehydration of carbonate hydrates. The carbonates of lithium, sodium, potassium, rubidium and caesium have been investigated. Kinetic measurements were carried out in a flow reactor in the integral regime at 423 K under atmospheric pressure, with a gas containing 0.2 vol.% of sulphur dioxide and 2.0 vol.% of water vapour in the nitrogen as a carrier gas. The reactivities have been compared on the basis of time dependence of the conversion of carbonate to sulphite.

Density changes of bismuth and alkaline metals at the transition to the liquid state

2016 ◽  
Vol 23 (6) ◽  
pp. 913-918 ◽  
Author(s):  
S. V. Stankus ◽  
R. N. Abdullaev ◽  
R. A. Khairulin
Keyword(s):  
Liquid State ◽  
Alkaline Metals

A Novel Technique for Growth of Lithium-free ZnO Single Crystals

2013 ◽  
Vol 1538 ◽  
pp. 405-410
Author(s):  
Shaoping Wang ◽  
Aneta Kopec ◽  
Andrew G. Timmerman
Keyword(s):  
Single Crystal ◽  
The Novel ◽  
Uv Laser ◽  
Uv Detectors ◽  
Growth Technique ◽  
Light Emitting ◽  
Alkaline Metals ◽  
Novel Technique ◽  
Solar Blind ◽  
Zno Single Crystal

ABSTRACTA ZnO single crystal is a native substrate for epitaxial growth of high-quality thin films of ZnO-based Group II-oxides (e.g. ZnO, ZnMgO, ZnCdO) for variety of devices, such as UV and visible-light emitting diodes (LEDs), UV laser diodes and solar-blind UV detectors. Currently, commercially available ZnO single crystal wafers are produced using a hydrothermal technique. The main drawback of hydrothermal growth technique is that the ZnO crystals contain large amounts of alkaline metals, such as Li and K. These alkaline metals are electrically active and hence can be detrimental to device performances. In this paper, results from a recently developed novel growth technique for ZnO single crystal boules are presented. Lithium-free ZnO single crystal boules of up to 1 inch in diameter was demonstrated using the novel technique. Results from crystal growth and materials characterization will be discussed.

Hydridoaluminates of alkaline metals

1987 ◽  
Vol 129 ◽  
pp. 209-210
Author(s):  
J.P Bastide ◽  
J.C Bureau ◽  
P Claudy ◽  
J.M Letoffe ◽  
J El Hajri
Keyword(s):  
Alkaline Metals

Impact of Humates of Alkaline Metals on Functioning of Several Cyanoprokaryota and Chlorophyta Species

2018 ◽  
Vol 54 (5) ◽  
pp. 36-48
Author(s):  
V. A. Medved' ◽  
A. S. Potrokhov ◽  
O. G. Zinkovskiy ◽  
A. V. Kureishevich
Keyword(s):  
Alkaline Metals

Luminescence properties of three structures built from 3-cyano-4-dicyanomethylene-5-oxo-4,5-dihydro-1H-pyrrol-2-olate and alkaline metals (Na, K and Rb)

2009 ◽  
Vol 65 (2) ◽  
pp. m52-m55 ◽  
Author(s):  
Viktor A. Tafeenko ◽  
Stanislav I. Gurskiy ◽  
Andrey N. Baranov ◽  
Tatiana V. Kaisarova ◽  
Leonid A. Aslanov
Keyword(s):  
Luminescence Properties ◽  
Alkaline Metals

Study of the interaction of small particles of alkaline metals with α-methylstyrene in non-polar media

1991 ◽  
Vol 33 (7) ◽  
pp. 1296-1303
Author(s):  
Ye.V. Novikova ◽  
D.K. Polyakov ◽  
V.V. Troitskii
Keyword(s):  
Small Particles ◽  
Alkaline Metals ◽  
Polar Media

Effect of co-doping of Ce3+and alkaline metals on the photoluminescence in CaGa2S4and SrGa2S4hosts

2006 ◽  
Vol 203 (11) ◽  
pp. 2718-2722 ◽  
Author(s):  
Chiharu Hidaka ◽  
Kazutaka Miura ◽  
Shinya Oikawa ◽  
Takeo Takizawa
Keyword(s):  
Alkaline Metals ◽  
Co Doping

Acetone gas phase condensation on alkaline metals doped TiO2 sol–gel catalysts

2005 ◽  
Vol 252 (3) ◽  
pp. 828-832 ◽  
Author(s):  
Marcial Zamora ◽  
Tessy López ◽  
Ricardo Gómez ◽  
Maximiliano Asomoza ◽  
Ruth Meléndrez
Keyword(s):  
Gas Phase ◽  
Sol Gel ◽  
Alkaline Metals ◽  
Doped Tio2 ◽  
Tio2 Sol
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