Zobrazeno 1 - 8
of 8
pro vyhledávání: '"U. U. Gomes"'
Publikováno v:
Cerâmica, Vol 69, Iss 392, Pp 272-277 (2024)
Abstract EUROFER is a reduced-activity ferritic-martensitic steel used in the construction of nuclear fusion reactors. Despite its good properties of mechanical strength, corrosion, creep, and radioactive damage, its maximum working temperature is 50
Externí odkaz:
https://doaj.org/article/cf02033bde8d490cb8d4fd3f881db019
Autor:
R. P. S. Dutra, M. L. Varela, R. M. Nascimento, U. U. Gomes, A. E. Martinelli, C. A. Paskocimas
Publikováno v:
Cerâmica, Vol 55, Iss 333, Pp 100-105 (2009)
O estudo do ciclo de queima de materiais cerâmicos tradicionais é de grande interesse industrial, visto que são processos que utilizam grande quantidade de energia. Com um ciclo de queima adequado é possível obter um produto de melhor qualidade
Externí odkaz:
https://doaj.org/article/35afab97d91749cb80d13ba1e950a97a
Autor:
D. P. Gurgel, I. S. Queiroz Jr., M. Q. da Silva Jr., H. D. de Andrade, U. U. Gomes, M. M. Karimi
Publikováno v:
Cerâmica, Vol 65, Iss suppl 1, Pp 7-11
Abstract This work aimed to perform the characterization of electrical properties of niobium pentoxide, Nb2O5, pure and doped with molybdenum, prepared by powder metallurgy route and to do a comparative analysis of the influence of this material when
Externí odkaz:
https://doaj.org/article/36e33d9947d44c77bdd901ffa6d81063
Publikováno v:
Cerâmica
Abstract Concretes present great potential to be used in many areas of civil construction. Their properties can be improved by substitution or addition of alternative materials to the Portland cement. The diatomite is a sedimentary material composed
Externí odkaz:
https://doaj.org/article/6193f17e9d314b688284b3f09ff5c7ac
Autor:
U. U. Gomes, J. Mendes Filho, A. G. Souza-Filho, Valder N. Freire, J. F. Julião, José Marcos Sasaki
Publikováno v:
Journal of Raman Spectroscopy. 31:451-454
The coexistence of phases in WO3 ceramics sintered within the 600–1000 °C temperature range is investigated using Raman microprobe spectroscopy. The analysis of vibrational modes indicates the existence of triclinic (VI) P1 and monoclinic (V) P21/
Publikováno v:
ChemInform. 22
Data on optical reflectance and anodization voltage, obtained during the galvanostatic anodization of metallic niobium foils in an H3PO4 (1%) solution at room temperature were simultaneously recorded as a function of time, to determine the thickness
Publikováno v:
Electrochimica Acta. 36:1297-1300
Data on optical reflectance and anodization voltage, obtained during the galvanostatic anodization of metallic niobium foils in an H3PO4 (1%) solution at room temperature were simultaneously recorded as a function of time, to determine the thickness
Autor:
Chaimowitz GA; Department of Psychiatry, McMaster University, Hamilton, Ont., Gomes U, Maze SS
Publikováno v:
CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne [CMAJ] 1988 Jan 01; Vol. 138 (1), pp. 51-3.