Zobrazeno 1 - 10
of 1 459
pro vyhledávání: '"Varela J.A."'
Publikováno v:
Science of Sintering, Vol 41, Iss 3, Pp 303-308 (2009)
In this work we optimized conditions for aerosol deposition of homogeneous, nanograined, smooth Ba0.8Sr0.2TiO3 thin films. Investigation involved optimization of deposition parameters, namely deposition time and temperature for different substrates.
Externí odkaz:
https://doaj.org/article/0a6da27a8fbb4875bd235a4730681837
Publikováno v:
Science of Sintering, Vol 39, Iss 3, Pp 267-272 (2007)
Bismuth titanate, Bi4Ti3O12 (BIT) nanosized powders have been successfully synthesized via high energy mechanochemical activation. The phase formation of BIT, crystal structure, microstructure, crystallite size and specific surface area were followed
Externí odkaz:
https://doaj.org/article/8ee31157b393411e91c55fae1db66785
Publikováno v:
Science of Sintering, Vol 37, Iss 3, Pp 199-216 (2005)
The family of bismuth titanate, Bi4Ti3O12 (BIT) layered-structured ferroelectrics materials is attractive from the viewpoint of their application as electronic materials such as dielectrics, piezoelectrics and pyroelectrics, because they are characte
Externí odkaz:
https://doaj.org/article/f9a4e75f2da14d67bbc6b69dfa4f4f70
Publikováno v:
Science of Sintering, Vol 36, Iss 3, Pp 179-188 (2004)
Barium titanates doped with Nb5+, and Y3+, were prepared. The starting powders were synthesized from citrate solutions by the Pechini process and partial Pechini process in two steps. Sintering was performed in the range from 13100 up to 13800C for 2
Externí odkaz:
https://doaj.org/article/bf9937cae688441c888cd18db9f39cdd
Autor:
Stojanović Biljana D., Foschini C.R., Zaghete M.A., Vieira F.O.S., Paiva-Santos C.O., Cilense M., Varela J.A.
Publikováno v:
Science of Sintering, Vol 34, Iss 1, Pp 63-71 (2002)
The influence of the addition of dopants on the microstructure development and electrical properties of BaTiO3 doped with 0.2, 0.4, 0.6, 0.8 mol% of Nb and 0.01 mol% of Mn based compounds was studied. Doped barium titanate was prepared using the poly
Externí odkaz:
https://doaj.org/article/0a2f6dd6a0614bb99bf05c65c90193a6
Publikováno v:
Science of Sintering, Vol 34, Iss 1, Pp 23-31 (2002)
Tin oxide is an n type semiconductor material with a high covalent behavior. Mass transport in this oxide depends on the surface state promoted by atmosphere or by the solid solution of aliovalent oxide doping. The sintering and grain growth of this
Externí odkaz:
https://doaj.org/article/883356f0f2dd4567b39270dd5f2610c5
Publikováno v:
In Revista Española de Anestesiología y Reanimación (English Edition) May 2022
Publikováno v:
In Revista Española de Anestesiología y Reanimación May 2022
Autor:
Berger, D., de Moura, A.P., Oliveira, L.H., Bastos, W.B., La Porta, F.A., Rosa, I.L.V., Li, M.S., Tebcherani, S.M., Longo, E., Varela, J.A.
Publikováno v:
In Ceramics International September 2016 42(12):13555-13561
Autor:
Oliveira, L.H., de Moura, A.P., La Porta, F.A., Nogueira, I.C., Aguiar, E.C., Sequinel, T., Rosa, I.L.V., Longo, E., Varela, J.A.
Publikováno v:
In Materials Research Bulletin September 2016 81:1-9