Zobrazeno 1 - 10 of 23 pro vyhledávání: '"Lima, Severino Jackson Guedes de"'
2
The influence of temperature on the color of TiO2:Cr pigments
Autor: Vieira, Fagner Ticiano Gomes, Melo, Danniely Silva, Lima, Severino Jackson Guedes de, Silva, Elson Longo da, Paskocimas, Carlos Alberto, Silva Júnior, Wilson, Souza, Antonio Gouveia de, Santos, Iêda Maria Garcia dos
Publikováno v: Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
TiO2:Cr brown pigments were prepared via a polymeric precursor derived from the Pechini method. The pigments were analyzed by infrared spectroscopy, X-ray diffraction, ultraviolet–vis spectroscopy, and colorimetry. The increase of the calcination t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::c7581772dcd310c63401fe0e863e8f93
https://repositorio.ufrn.br/handle/123456789/32075
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3
Effect of heat treatment on Fe-B-Si-Nb alloy powder prepared by mechanical alloying
Autor: Coelho, Rodrigo Estevam, Gomes, Rodinei Medeiros, Lima, Severino Jackson Guedes de
Publikováno v: Materials Research, Volume: 8, Issue: 2, Pages: 161-163, Published: JUN 2005
The effect of heat treatment on crystallization behavior of Fe73.5B15Si10Nb1.5 alloy powder prepared by mechanical alloying was studied. The powder samples were prepared by mechanical alloying (MA) and for different milling times (1, 5, 25, 70 and 10
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______608::5247e9fc37805bb0fc679e6d7443d6ef
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000200012&lng=en&tlng=en
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4
Effect of heat treatment on Fe-B-Si-Nb alloy powder prepared by mechanical alloying
Autor: Coelho,Rodrigo Estevam, Gomes,Rodinei Medeiros, Lima,Severino Jackson Guedes de
Publikováno v: Materials Research v.8 n.2 2005
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
The effect of heat treatment on crystallization behavior of Fe73.5B15Si10Nb1.5 alloy powder prepared by mechanical alloying was studied. The powder samples were prepared by mechanical alloying (MA) and for different milling times (1, 5, 25, 70 and 10
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::5247e9fc37805bb0fc679e6d7443d6ef
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000200012
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5
Study of hardness and surface of composite properties epoxy/quasicrystal
Autor: Barros, Thayza Pacheco dos Santos
Publikováno v: Biblioteca Digital de Teses e Dissertações da UFPB
Universidade Federal da Paraíba (UFPB)
instacron:UFPB
Quasicrystals are materials with unique properties such as high hardness, low surface energy, low coefficient of friction, etc. Due to its high hardness and consequent fragility, the use of quasicrystals becomes limited to coatings and composite mate
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::21bc600582f517949a750f2c91d6d417
https://repositorio.ufpb.br/jspui/handle/tede/7575
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6
Metallurgical and mechanical characterization of the modified AISI 8630 steel, buttered with the ER80S-D2 carbon steel alloy by the process of welding 'GMAW'
Autor: Duarte, Saulo Moretti Araujo
Publikováno v: Biblioteca Digital de Teses e Dissertações da UFPB
Universidade Federal da Paraíba (UFPB)
instacron:UFPB
The recent oil discoveries in deep waters suggest new challenges to the technical area associated to the mechanical and metallurgical properties of the materials used in the oil and gas industry. In this study, we characterized the microstructural va
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::987144c2821385eb2db4f46085c8514a
https://repositorio.ufpb.br/jspui/handle/tede/5382
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7
Evaluation of the influence of hydrogen in dissimilar welded joing toughness of the fracture mechanics in the dissimilar welded joint with steel aisi 8630m buttered er80s-d2
Autor: Cavalcante, Fabrício José Nóbrega
Publikováno v: Biblioteca Digital de Teses e Dissertações da UFPB
Universidade Federal da Paraíba (UFPB)
instacron:UFPB
The steady growth in the use of structural steel has been studied by researchers and companies in underwater applications with the use of solder joints with dissimilar steels. To apply this type of joint in this type of environment, makes use of cath
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::4bc4f406f8c78b7acf6fb4e999f836e5
https://repositorio.ufpb.br/jspui/handle/tede/5380
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8
Analysis of influence of hydrogen on toughness almost static welded joints of steel hsla
Autor: Almeida, Jose Goncalves de
Publikováno v: Biblioteca Digital de Teses e Dissertações da UFPB
Universidade Federal da Paraíba (UFPB)
instacron:UFPB
This study examined the influence of hydrogen in quasi-static toughness of dissimilar welded joint, consisting of base metals steel AISI 8630M and ASTM A36, HSLA steels classified as (High Strength Low Alloy). As a metal filler wire AWS-ERNiCrMo 3ARB
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::5bd4e3b2c44ee2c3086dd5a95bbd975c
https://repositorio.ufpb.br/jspui/handle/tede/5385
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9
Estudo das variáveis do processo de produção de compósito alumínio - quasicristal por extrusão a quente
Autor: Sousa, Fernando Luís Vieira de
Publikováno v: Biblioteca Digital de Teses e Dissertações da UFPB
Universidade Federal da Paraíba (UFPB)
instacron:UFPB
The composites metal matrix exhibit properties that are of great interest to the mechanical and aerospace industry, especially when it incorporates low weight with high strength. Currently, the composites ductile matrix reinforced with nanoparticles
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::d7aab1dbd3e96d99a14716b20e7cc95d
https://repositorio.ufpb.br/jspui/handle/tede/5358
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10
Desenvolvimento e caracterização de um compósito matriz metálica (CMM): aço EUROFER97 reforçado com Carbeto de Tântalo - TaC
Autor: Oliveira, Leiliane Alves de
Publikováno v: Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
Conselho Nacional de Desenvolvimento Científico e Tecnológico Steel is an alloy EUROFER promising for use in nuclear reactors, or in applications where the material is subjected to temperatures up to 550 ° C due to their lower creep resistance und
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::e9db4ddcb62a8d31c61f70db8da67365
https://repositorio.ufrn.br/jspui/handle/123456789/12826
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