Zobrazeno 1 - 10
of 40
pro vyhledávání: '"A.I. Ivon"'
Publikováno v:
Journal of Alloys and Compounds. 656:740-744
Temperature dependence of the bulk resistivity of zinc oxide grains in ZnO varistor ceramics was studied in the range 77–460 K. The pulse method was used for the measurement of the grain resistivity. In the examined temperature range the resistivit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f42ee82a6c73cd239d45a7f13e0ebc85
https://doi.org/10.1016/j.jallcom.2015.10.046
https://doi.org/10.1016/j.jallcom.2015.10.046
Publikováno v:
Physica B: Condensed Matter. 457:108-112
It is shown that an addition of bismuth oxide Bi2O3 (0.5 mol%) to the system SnO2–CoO–Nb2O5–Cr2O3 with small amounts of Nb2O5 and Cr2O3 (0.05 mol%) leads to a significant decrease in the electric field where a strong nonlinearity of the current
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbbc3ab67a9047b53d4e9e9ad2dca9e8
https://doi.org/10.1016/j.physb.2014.09.026
https://doi.org/10.1016/j.physb.2014.09.026
Publikováno v:
Journal of Alloys and Compounds. 616:372-377
In this paper the grain resistivity was measured for commercial ZnO-based and laboratory-made SnO 2 -based varistor ceramics exhibiting highly nonlinear current–voltage characteristics at low current (1 mA cm − 2 ). The high-current study was per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0e6aa2ef57918f00406f419b97b567c
https://doi.org/10.1016/j.jallcom.2014.07.178
https://doi.org/10.1016/j.jallcom.2014.07.178
Publikováno v:
Ceramics International. 39:6441-6447
A new pulse technique for grain resistivity measurement in varistor ceramics is suggested. Such technique allows obtaining more precise value of the grain resistivity due to the use of the concept of differential electrical resistance. This technique
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84eb911e7151266f413f712960eec193
https://doi.org/10.1016/j.ceramint.2013.01.072
https://doi.org/10.1016/j.ceramint.2013.01.072
Publikováno v:
Journal of the European Ceramic Society. 32:3801-3807
New dense SnO 2 -based varistor ceramics with high nonlinear current–voltage characteristics (nonlinearity coefficients are of approximately 50) in a system of SnO 2 –CoO–Nb 2 O 5 –Cr 2 O 3 –Y 2 O 3 –SrO–MgO are reported. The current–
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae03977b33dc3213b661254face47b0b
https://doi.org/10.1016/j.jeurceramsoc.2012.05.029
https://doi.org/10.1016/j.jeurceramsoc.2012.05.029
Publikováno v:
Materials Science and Engineering: B. 145:76-84
It is shown that tin dioxide based SnO 2 –Co 3 O 4 –Nb 2 O 5 –Cr 2 O 3 ceramic material exhibits not only varistor properties discussed in the literature but also humidity-sensitive properties. At low electric fields conductivity of SnO 2 –Co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6582e629ce3374c0586100e793ddbe71
https://doi.org/10.1016/j.mseb.2007.10.003
https://doi.org/10.1016/j.mseb.2007.10.003
Publikováno v:
Journal of Non-Crystalline Solids. 353:1521-1528
Electric conductivity, microstructure and phase composition of (85-α)VO2–15VPG–αCu glass–ceramics (VPG = Vanadium–Phosphate–Glass) with copper content in the interval 0 wt% ⩽ α ⩽ 15 wt% were investigated. VPG is the glass (molar %) 8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58165b6da518f2508095ce847d356d12
https://doi.org/10.1016/j.jnoncrysol.2007.02.033
https://doi.org/10.1016/j.jnoncrysol.2007.02.033
Publikováno v:
Journal of the European Ceramic Society. 24:2591-2595
The current–voltage characteristics of zinc oxide-based ceramics with silver electrodes created by silver baking and with copper electrodes obtained by electrodeposition of copper have been investigated in wide region of electric current. For ZnO v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::524bca3896db48a5eac21b6471571700
https://doi.org/10.1016/j.jeurceramsoc.2003.09.003
https://doi.org/10.1016/j.jeurceramsoc.2003.09.003
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