Zobrazeno 1 - 10
of 84
pro vyhledávání: '"J.N. Mundy"'
Publikováno v:
Materials Letters. 9:347-352
The stability of YBa2Cu3O7−x (YBCO) towards reactions with CO2 in CO2/O2 gas mixtures has been studied during sintering of phase-pure YBCO powders as a function of CO2 partial pressure. The zero-field critical current density, Jc, in the sintered s
The transport critical current density (J{sub c}) of YBCO superconductors decreased with increasing CO{sub 2} partial pressure in the sintering atmosphere and ultimately reached zero, even though magnetization measurements showed that the bulk of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fb41175a3a0767c965e9557a8c84c08
https://doi.org/10.2172/10194903
https://doi.org/10.2172/10194903
Autor:
T. O. Mason, D. Xu, Guna S Selvaduray, C. Zhang, Y. Gao, K. L. Merkle, Roger B. Poeppel, U. Balachandran, J.N. Mundy, B. W. Veal
Publikováno v:
AIP Conference Proceedings.
Stability of the YBa2Cu3Ox (YBCO) superconductor in reacting with CO2 in CO2/O2 gas mixtures during sintering was investigated as a function of the partial pressure of CO2 and temperature. The transport critical current density, Jc, of the supercondu
Autor:
J.N. Mundy, J.L. Jin
Publikováno v:
Solid State Ionics. 25:71-83
Ionic conductivity measurements have been made as a function of temperature and Na/Rb ratio on four series of x (Na, Rb) 2 O: (1− x )GeO 2 glasses where x ≈0.09, 0.15, 0.19 and 0.29. The three series with x ⩾0.15 exhibit the common characterist
Autor:
J.N. Mundy
Publikováno v:
Solid State Ionics. :671-676
A satisfactory model for ionic transport in glass proves elusive. The apparent success of the weak electrolyte theory in interpreting a number of the electrical properties is shown to be illusory as the same evidence provides an equally satisfactory
Autor:
J.N. Mundy, Himanshu Jain
Publikováno v:
Journal of Non-Crystalline Solids. 91:315-323
The frequency dependence of electrical conductivity of many germanate and borate glasses has been analyzed in terms of an empirical power law at different temperatures. The power law has often been used in determining the concentration of mobile carr
Autor:
J.N. Mundy, G.L. Jin
Publikováno v:
Solid State Ionics. 24:263-272
Measurements of the electrical conductivity have been made in a series of x Na2O:y Al2O3: (1 − x − y) GeO2 glasses where x ≅ 0.01, 0.05, 0.10, 0.15, 0.22 and 0.29 and y x ≅ 0.033 and 1.0. The dc conductivities of the rubidium germanate glasse
Autor:
J.N. Mundy, G.L. Jin
Publikováno v:
Solid State Ionics. 21:305-325
Measurements of the electrical conductivity and tracer diffusion coefficient have been made in a series of X Na 2 O : Y Al 2 O 3 : (1− X − Y ) GeO 2 glasses where X ≈ 0.01, 0.05, 0.10, 0.15, 0.19 and 0.29 and Y / X ≈ 0, 0.33 and 1.0. The dc c
Publikováno v:
Journal of Non-Crystalline Solids. :873-880
From measurements of both d.c. and a.c. conductivity in wide composition range of alkali aluminogermanate glasses xM 2 O:yAl 2 O 3 :(1 − x − y)GeO 2 where M is the alkali Na or Rb, x ranges from 6 × 10 −4 to 0.29 and y/x −O , 0.33 and 1.0, w
Publikováno v:
Materials Science Forum. :451-456