Zobrazeno 1 - 10
of 118
pro vyhledávání: '"J. A. C. De Paiva"'
Publikováno v:
Journal of Alloys and Compounds. 485:637-641
High-quality NiFe2O4 nanosized powders were prepared by a new route using a natural proteic solution of coconut water and metal ions. The transition from the superparamagnetic to the ferrimagnetic state was observed with the increase of the heat-trea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38c08a40c93a2f1cd54b7bf0dfdb4b47
https://doi.org/10.1016/j.jallcom.2009.06.052
https://doi.org/10.1016/j.jallcom.2009.06.052
Autor:
José Marcos Sasaki, F. M. M. Pereira, R. S. T. M. Sohn, C. A. R. Junior, J. A. C. De Paiva, Antonio Sergio Bezerra Sombra, M Santos, Francisco Nivaldo Aguiar Freire
Publikováno v:
Journal of Materials Science: Materials in Electronics. 19:627-638
The M-type barium hexaferrite Ba x Sr1−x Fe12O19 (where 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8c9b540215f9da9995008a1be4655c2
https://doi.org/10.1007/s10854-007-9411-5
https://doi.org/10.1007/s10854-007-9411-5
Autor:
M.G. da Silva, Antonio G. Souza Filho, J. A. C. De Paiva, Odair Pastor Ferreira, D. X. Gouveia, Josué Mendes Filho, Oswaldo Luiz Alves
Publikováno v:
Journal of Materials Science. 42:534-538
The thermal decomposition properties of Mg–Fe hydrotalcites were studied through in situ 57Fe Mossbauer spectroscopy and in situ X-ray diffraction. Abrupt changes in the quadrupolar splitting measured in the Mossbauer spectra revealed a phase trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df910dfede2a53551f21101c89575e2a
https://doi.org/10.1007/s10853-006-1143-z
https://doi.org/10.1007/s10853-006-1143-z
Autor:
I. F. De Vasconcelos, J. A. C. De Paiva, J.C. Góes, S.D. Figueiró, Antonio Sergio Bezerra Sombra
Publikováno v:
Journal of Physics and Chemistry of Solids. 63:465-470
In this paper, we report results of a study of the physicochemical, dielectric and piezoelectric properties of anionic and native collagen films, considering the development of new biomaterials which have potential applications in coating of cardiova
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bce531bf325fdc5dfc5cd9f7bbd07ba
https://doi.org/10.1016/s0022-3697(01)00161-5
https://doi.org/10.1016/s0022-3697(01)00161-5
Autor:
C.F. Wehmann, J. A. C. De Paiva, J.C. Góes, C. C. Silva, C. E. C. Magalhães, V. O. Sousa Neto, S.D. Figueiró, Antonio Sergio Bezerra Sombra
Publikováno v:
Journal of Materials Science: Materials in Electronics. 13:157-165
In this paper a study was carried out of collagen membranes prepared with iron as an impurity. In this study the function of the iron in the collagen structure was examined with the aim of increasing the value of the piezoelectric strain tensor eleme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::111917ee15a5a12a7c9dc9132149474f
https://doi.org/10.1023/a:1014333417212
https://doi.org/10.1023/a:1014333417212
Autor:
J. A. C. De Paiva, Ana Fabíola Leite Almeida, C. C. Silva, Antonio Sergio Bezerra Sombra, J.C. Góes, V. O. Sousa Neto, S.D. Figueiró, C. E. C. Magalhães
Publikováno v:
Solid State Sciences. 4:43-51
In this paper we did a study of collagen membranes prepared with iron as an impurity. In this study one try to understand the function of the iron in the collagen structure in view of increasing the value of piezoelectric strain tensor element d14. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::541f6504d503e6e920730574460611b8
https://doi.org/10.1016/s1293-2558(01)01220-1
https://doi.org/10.1016/s1293-2558(01)01220-1
Publikováno v:
Journal of Materials Science. 35:1555-1559
Niobate glasses and ceramics [(x Nb2O5 (0.5 − x) P2O5) 0.5 Li2O] were prepared by the melt-quenching method and analysed by means of infrared spectroscopy, X-ray powder diffraction and complex impedance methods. LiNbO3 crystals were detected for hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef944c2180d2c31d0bef5450196234df
https://doi.org/10.1023/a:1004765920995
https://doi.org/10.1023/a:1004765920995
Publikováno v:
physica status solidi (a). 176:1077-1083
In this paper we studied the piezoelectric and dielectric properties of collagen films, considering the development of new biomaterials which have potential applications in coating of cardiovascular prostheses, support of cellular growth and in syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ae0c4f057479808be9e4734b6ea046d
https://doi.org/10.1002/(sici)1521-396x(199912)176:2<1077::aid-pssa1077>3.0.co
https://doi.org/10.1002/(sici)1521-396x(199912)176:2<1077::aid-pssa1077>3.0.co
Publikováno v:
physica status solidi (a). 172:255-263
Niobate glasses and ceramics [(xNb 2 O 5 . (0.5-x) P 2 O 5 ) . 0.5 Li 2 O] were prepared by the melt-quenching method and analyzed by means of infrared spectroscopy, X-ray powder diffraction and complex impedance methods. LiNbO 3 crystals were detect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1220a0187fb7a32cbc4b5bf1fb43577a
https://doi.org/10.1002/(sici)1521-396x(199903)172:1<255::aid-pssa255>3.0.co
https://doi.org/10.1002/(sici)1521-396x(199903)172:1<255::aid-pssa255>3.0.co
Autor:
M.A. Valente, J. A. C. De Paiva, J S de Andrade, A. G. Pinheiro, Antonio Sergio Bezerra Sombra, José Marcos Sasaki, Igor F. Vasconcelos
Publikováno v:
Journal of Physics: Condensed Matter. 11:4451-4460
Potassium niobophosphate glasses and glass-ceramics of the family [xNb2O5.(50-x) P2O5.50K2O]:yFe2O3 were studied by x-ray powder diffraction, infrared and Raman scattering spectroscopy. For the potassium-phosphate samples [50P2O5-50K2O] the iron oxid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8f0412836c74e48b15afc7dff2c9f0a
https://doi.org/10.1088/0953-8984/11/22/315
https://doi.org/10.1088/0953-8984/11/22/315