Zobrazeno 1 - 10
of 33
pro vyhledávání: '"U. Von Alpen"'
Publikováno v:
Journal of Solid State Chemistry. 36:365-370
Conductivity data of several Na 2 SO 4 (I) solid solutions with cation substitutions are presented. The substitution of sodium by bi- and trivalent atoms generates cation vacancy concentrations up to 30% in the structure of Na 2 SO 4 (I) thus creatin
Publikováno v:
Solid State Ionics. :215-218
Mixed crystals of the Nasicon composition Na1+xZr2SixP3−xO120.4⩽x⩽2.8 cannot be prepared as pure monophases because free ZrO2 always occurs as an impurity. In this paper a new solid solution is presented which is defined by the end compounds Na
Publikováno v:
Materials Research Bulletin. 16:267-272
In this paper the influence of hydrogen doping on the ionic conductivity of Li3N single crystals is discussed. From measurements on a number of samples of widely varying hydrogen content, it is shown that: 1. 1. the doping in the samples is inhomogen
Publikováno v:
Solid State Ionics. 7:345-348
A new compound, Na4ZrSi3O10, belonging to the ternary system Na2O-SiO2-ZrO2 is presented. Based on X-ray powder methods, it is assigned monoclinic symmetry with the probable group C 2/c. The ionic conductivity was found to be 4 x 10-3Ω-1cm-1 at 300
Autor:
M.F. Bell, U. von Alpen
Publikováno v:
Solid State Ionics. :259-262
The kinetics of lithium transport across the interface formed by melting lithium onto a lithium nitride sinter has been studied using a linear potential sweep technique. A model which allows the calculation of the product of concentration and diffusi
Publikováno v:
Physica Status Solidi (b). 79:763-773
Electronic properties of e-screw dislocations, introduced by shear experiments, are studied by galvanomagnetic and optical absorption measurements. The experiments clearly establish the existence of induced acceptor levels in the band gap. The origin
Publikováno v:
physica status solidi (b). 55:667-676
Because of the plasticity of tellurium at room temperature many physical properties are strongly influenced by the preparation technique. Systematical inquiries about the influence of dislocations on the optical constants near the electronic band edg
Autor:
J. C. Doukhan, U. von Alpen
Publikováno v:
Review of Scientific Instruments. 48:640-642
c glide in tellurium single crystals cannot be studied by conventional uniaxial tests because slip on other glide systems cannot be suppressed, and because these systems are also active. We have developed a shearing device which allows this study to
Autor:
U. Von Alpen, M.F. Bell
Publikováno v:
Chemischer Informationsdienst. 10
Publikováno v:
Materials for Advanced Batteries ISBN: 9781468438536
The a.c. impedance technique has been increasingly used in the elucidation of the mechanism and kinetics of complex electrochemical reactions. However until recently this technique has suffered from being either slow and cumbersome or very complicate
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https://explore.openaire.eu/search/publication?articleId=doi_________::fe86f85dbf0b1d4c57e2fe4e95e97b5a
https://doi.org/10.1007/978-1-4684-3851-2_19
https://doi.org/10.1007/978-1-4684-3851-2_19