Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Manuel P. F. Graça"'
Autor:
Susana Devesa, Carlos Oliveira Amorim, João Horta Belo, João P. Araújo, Sílvia Soreto Teixeira, Manuel P. F. Graça, Luís Cadillon Costa
Publikováno v:
Magnetochemistry, Vol 10, Iss 10, p 79 (2024)
Recent research in solid-state physics and materials engineering focuses on the development of new dielectric materials, with bismuth-based pyrochlores being already extensively applied in communications technology for their excellent dielectric prop
Externí odkaz:
https://doaj.org/article/c032016073cc485b86f2eb167eaac1db
Autor:
Bruno M. G. Melo, Clara Baivier, Ratiba Benzerga, Didier Fasquelle, S. Soreto Teixeira, Manuel P. F. Graça, Luís Costa
Publikováno v:
Crystals, Vol 14, Iss 7, p 590 (2024)
This study presents the dielectric properties of a barium titanate–gadolinium ferrite composite material, obtained through a solid-state reaction method. The aim of this research was to create a composite material with enhanced dielectric propertie
Externí odkaz:
https://doaj.org/article/fc04d113f60b4d559068b6a508217e40
Publikováno v:
Nanomaterials, Vol 13, Iss 13, p 1955 (2023)
This work investigates the dielectric properties of barium titanate/gadolinium ferrite ceramic composites, with different concentrations of each material. Our objective was to increase the storage ability of this material, finding a compromise betwee
Externí odkaz:
https://doaj.org/article/b22b03e365104d5196bde1fb4f2cc525
Autor:
Susana Devesa, Joana Rodrigues, Sílvia Soreto Teixeira, Aidan P. Rooney, Manuel P. F. Graça, David Cooper, Teresa Monteiro, Luís C. Costa
Publikováno v:
Nanomaterials, Vol 11, Iss 3, p 660 (2021)
Tetragonal Er0.5Nb0.5O2 and monoclinic ErNbO4 micro- and nanoparticles were prepared by the citrate sol–gel method and heat-treated at temperatures between 700 and 1600 °C. ErNbO4 revealed a spherical-shaped crystallite, whose size increased with
Externí odkaz:
https://doaj.org/article/26fe1eed37754dc6bfd819beb40355c6
Autor:
Silvia Soreto Teixeira, Manuel P. F. Graça, José Lucas, Manuel Almeida Valente, Paula I. P. Soares, Maria Carmo Lança, Tânia Vieira, Jorge Carvalho Silva, João Paulo Borges, Luiza-Izabela Jinga, Gabriel Socol, Cristiane Mello Salgueiro, José Nunes, Luís C. Costa
Publikováno v:
Nanomaterials, Vol 11, Iss 1, p 193 (2021)
The physical properties of the cubic and ferrimagnetic spinel ferrite LiFe5O8 has made it an attractive material for electronic and medical applications. In this work, LiFe5O8 nanosized crystallites were synthesized by a novel and eco-friendly sol-ge
Externí odkaz:
https://doaj.org/article/dbde94a5b0614532a90483f60243fff7
Publikováno v:
Nanomaterials; Volume 13; Issue 13; Pages: 1955
This work investigates the dielectric properties of barium titanate/gadolinium ferrite ceramic composites, with different concentrations of each material. Our objective was to increase the storage ability of this material, finding a compromise betwee
Autor:
João P. F. Carvalho, Tânia Vieira, Jorge Carvalho Silva, Paula I. P. Soares, Nuno M. Ferreira, Carlos O. Amorim, Sílvia Soreto Teixeira, Manuel P. F. Graça
Publikováno v:
Materials; Volume 16; Issue 10; Pages: 3880
LA/P/0037/2020. LA/P/0006/2020. Publisher Copyright: © 2023 by the authors. Ferrites have been widely studied for their use in the biomedical area, mostly due to their magnetic properties, which gives them the potential to be used in diagnostics, dr
Autor:
Silvia Soreto, Teixeira, Manuel P F, Graça, José, Lucas, Manuel Almeida, Valente, Paula I P, Soares, Maria Carmo, Lança, Tânia, Vieira, Jorge Carvalho, Silva, João Paulo, Borges, Luiza-Izabela, Jinga, Gabriel, Socol, Cristiane, Mello Salgueiro, José, Nunes, Luís C, Costa
Publikováno v:
Nanomaterials
The physical properties of the cubic and ferrimagnetic spinel ferrite LiFe5O8 has made it an attractive material for electronic and medical applications. In this work, LiFe5O8 nanosized crystallites were synthesized by a novel and eco-friendly sol-ge
Autor:
Ana Paula M. Shainberg, Patrícia Valério, Alessandra Zonari, Faik N. Oktar, Lutfiye S. Ozyegin, Manuel Pedro F. Graça, Maria F. Leite, Alfredo M. Goes
Publikováno v:
Advances in Materials Science and Engineering, Vol 2012 (2012)
The biocompatibility and bioactivity properties of hydroxyapatites (HAs) modified through lithium addition were investigated. Hydroxyapatites obtained from bovine bone were mixed with lithium carbonate (Li), in the proportions of 0.25, 0.50, 1.00, an
Externí odkaz:
https://doaj.org/article/d696b3e927f348da9f7d7edb3593d008
Autor:
Pedro R. Prezas, Manuel J. Soares, João P. Borges, Jorge C. Silva, Filipe J. Oliveira, Manuel Pedro F. Graça
Publikováno v:
Nanomaterials, Vol 13, Iss 6, p 1058 (2023)
Atmospheric plasma spray (APS) remains the only certified industrial process to produce hydroxyapatite (Hap) coatings on orthopaedic and dental implants intended for commercialization. Despite the established clinical success of Hap-coated implants,
Externí odkaz:
https://doaj.org/article/11d694419a6c47e0ad349c8e43a0e2fe