Results 91 to 100 of about 2,258 (200)

Effect of sintering temperature and heat treatment on electrical properties of indium oxide based ceramics [PDF]

, 2008
Indium oxide based ceramics with bismuth oxide addition were sintered in air in the temperature range 800-1300 ºC. Current-voltage characteristics of In2O3-Bi2O3 ceramics sintered at different temperatures are weakly nonlinear.
Bondarchuk, AN, Bulpett, R, Glot, AB, Jones, BJ, Mazurik, SV, Verma, N   +5 more
core  

Nonlinear DC-response in Composites: a Percolative Study

, 1997
The DC-response, namely the $I$-$V$ and $G$-$V$ charateristics, of a variety of composite materials are in general found to be nonlinear. We attempt to understand the generic nature of the response charactersistics and study the peculiarities associated ...
A. A. Middleton, A. A. Middleton, A. J. Rimberg, A. Kar Gupta, A. Kar Gupta, Abhijit Kar Gupta, Asok K. Sen, D. A. G. Bruggeman, D. Lenstra, D. S. Fisher, D. van der Putten, E. Canessa, E. K. Sichel, G. D. Mahan, G. E. Pike, I-G. Chen, I. Balberg, J. Robertson, K. K. Bardhan, K. K. Bardhan, L. de Arcangelis, L. K. H. van Beek, M. Aertsens, M. Prester, M. Reghu, M. Sahimi, P. Mandal, R. K. Chakrabarty, R. Landauer, S. A. Wolf, S. Kirkpatrick, S. Roux, U. N. Nandy, Y. Gefen   +33 more
core   +1 more source

Influence of processing parameters on microstructure and electrical properties of ZnO-based varistor ceramics

Discover Electronics
ZnO-based varistors are widely used in electrical equipment for surge protection. This research explores the influence of sintering parameters—such as sintering temperature, ramp rate and soaking time—on microstructure development and V-I characteristics
Muhammad Hassan, Muddassar Hussain, Muhammad Ali, Syed Ahmad Ali   +3 more
doaj   +1 more source

Microstructural and nonohmic properties of ZnO.Pr6O11 CoO polycrystalline system

Materials Research, 2010
The microstructure and electrical properties of varistors composed of (95-x) ZnO + x Pr6O11 + 5 CoO (ZPC), (x = 0.1, 0.5 and 1.0) and sintered at 1300 and 1350 °C, were investigated. According to X-ray diffraction, several phases (ZnO, Pr2O3 and Pr2CoO4)
Miguel Angel Ramírez, José Francisco Fernández, José de Frutos, Paulo Roberto Bueno, Elson Longo, José Arana Varela   +5 more
doaj   +1 more source

Photothermal and Electrical Characterization of Zno-Based Varistor Systems [PDF]

, 2007
Photopyroelectric spectroscopy is a powerful tool for examining the optical properties related to non-radiative de-excitation processes in materials. This technique consists of using a thin photopyroelectric (PPE) film in intimate contact with a solid ...
Rizwan, Zahid
core  

Desenvolvimento de varistores à base de SnO2 para aplicação em redes de alta tensão Development of SnO2-based varistors for high voltage application

Cerâmica, 2006
Varistores à base de SnO2 foram preparados pelo processo convencional de mistura de óxidos. As amostras foram sinterizadas a 1250 °C por 2 h. Os difratogramas obtidos por difração de raios X e as análises por microscopia eletrônica de varredura ...
M. M. Oliveira, J. H. G. Rangel, V. C. de Sousa, E. R. Leite, E. Longo, P. R. Bueno, J. A. Varela   +6 more
doaj   +1 more source

Effects of Dopants and Processing Parameters on the Properties of ZnO-V₂O₅-Based Varistors Prepared by Powder Metallurgy: A Review. [PDF]

Materials (Basel), 2023
Lungu MV.
europepmc   +1 more source

Cold-Sintered ZnO Ceramic Composites Co-Doped with Polytetrafluoroethylene and Oxides. [PDF]

Molecules, 2023
Xiao Y, Yang Y, Kang S, Li Y, Hou X, Ren C, Wang X, Zhao X.   +7 more
europepmc   +1 more source

Origin of solid-state activated sintering in BiO₂₃-doped ZnO. [PDF]

, 1999
Thesis (S.M.)--Massachusetts Institute of Technology, Dept.
Luo, Jian, 1971-
core  

Processing parameters for ZnO-based thick film varistors obtained by screen printing

Boletín de la Sociedad Española de Cerámica y Vidrio, 2006
Thick film varistors based on the ZnO-Bi2O3-Sb2O3 system have been prepared by screen printing on dense alumina substrates. Different processing parameters like the paste viscosity, burn out and sintering cycles, green and sintered thickness, have been ...
de la Rubia, M. A., Peiteado, M., Fernández, J. F., Caballero, A. C., de Frutos, J., Holc, J., Drnovsek, S., Kuscer, D., Macek, S., Kosec, M.   +9 more
doaj