Manuel Pedro Fernandes Graça


AuthID: R-000-A7N

Confirmed Publications: 82



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TITLE: Electric and dielectric properties of a SiO2-Na2O-Nb2O5 glass subject to a controlled heat-treatment process  Full Text
AUTHORS: Graca, MPF ; Ferreira G F da Silva ; Sombra, ASB; Valente, MA ;
PUBLISHED: 2007, SOURCE: PHYSICA B-CONDENSED MATTER, VOLUME: 396, ISSUE: 1-2
INDEXED IN: Scopus WOS
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63
TITLE: Electrical characterization of SiO2 : LiNbO3 glass and glass-ceramics using dc conductivity, and dielectric TSDC measurements spectroscopy  Full Text
AUTHORS: Graca, MPF ; Ferreira G F da Silva ; Sombra, ASB; Valente, MA ;
PUBLISHED: 2007, SOURCE: 4th Conference of the International-Dielectric-Society/9th International Conference on Dielectric and Related Phenomena in JOURNAL OF NON-CRYSTALLINE SOLIDS, VOLUME: 353, ISSUE: 47-51
INDEXED IN: Scopus WOS
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64
TITLE: Influence of the sol-gel growth parameters on the optical and structural properties on LiNbO3 samples  Full Text
AUTHORS: Graca, MPF ; Valente, MA ; Peres, M; Cruz, A; SoareS, MJ ; Neves, AJ ; Monteiro, T ; Alves, E ; Marques, C;
PUBLISHED: 2007, SOURCE: Symposium on Current Trends in Nanoscience - From Materials to Applications held at the 2006 E-MRS Spring Meeting in MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, VOLUME: 27, ISSUE: 5-8
INDEXED IN: Scopus WOS
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65
TITLE: Microwave dielectric properties of NiFe2O4 nanoparticles ferrites  Full Text
AUTHORS: Rubinger, CPL; Gouveia, DX; Nunes, JF; Salgueiro, CCM; Paiva, JAC; Graca, MPF ; Andre, PS ; Costa, LC ;
PUBLISHED: 2007, SOURCE: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, VOLUME: 49, ISSUE: 6
INDEXED IN: Scopus WOS CrossRef: 15
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66
TITLE: Preparation, structure, morphology, and dc and ac conductivity of the 88SiO(2)-6Li(2)O-6Nb(2)O(5) (% mole) sol-gel derived glass-ceramics  Full Text
AUTHORS: Graca, MPF ; Ferreira da Silva, MGF ; Valente, MA ;
PUBLISHED: 2007, SOURCE: JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, VOLUME: 42, ISSUE: 1
INDEXED IN: Scopus WOS
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67
TITLE: Structural and electrical properties of SiO2-Li2O-Nb2O5 glass and glass-ceramics obtained by thermoelectric treatments  Full Text
AUTHORS: Graca, MPF ; Ferreira da Silva, MGF; Valente, MA ;
PUBLISHED: 2007, SOURCE: JOURNAL OF MATERIALS SCIENCE, VOLUME: 42, ISSUE: 8
INDEXED IN: Scopus WOS
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68
TITLE: Structural and optical properties of Er3+ ion in sol-gel grown LiNbO3  Full Text
AUTHORS: Graca, MPF ; Valente, MA ; Peres, M; Cruz, A; Soares, MJ ; Neves, AJ ; Monteiro, T ; Alves, LC ; Alves, E ;
PUBLISHED: 2007, SOURCE: JOURNAL OF PHYSICS-CONDENSED MATTER, VOLUME: 19, ISSUE: 1
INDEXED IN: Scopus WOS
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69
TITLE: AC and DC conductivity analysis of hydroxyapatite and titanium calcium phosphate formed by dry ball milling  Full Text
AUTHORS: Silva, CC; Graca, MPF ; Valente, MA ; Sombra, ASB;
PUBLISHED: 2006, SOURCE: 21st International Conference on Amorphous and Nanocrystalline Semiconductors in JOURNAL OF NON-CRYSTALLINE SOLIDS, VOLUME: 352, ISSUE: 9-20
INDEXED IN: Scopus WOS CrossRef: 19
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70
TITLE: Carrier transport investigation on organic semiconductor by electrical DC and AC measurements: the case of Alq3
AUTHORS: Silva, VM; Graca, MPF ; Madaleno, JC ; Costa, LC ; Pereira, L ;
PUBLISHED: 2006, SOURCE: 3rd International Materials Symposium/12th Meeting of the Sociedad-Portuguesa-da-Materials (Materials 2005/SPM) in ADVANCED MATERIALS FORUM III, PTS 1 AND 2, VOLUME: 514-516, ISSUE: PART 1
INDEXED IN: Scopus WOS
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