Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Milton Ferreira de Souza"'
Publikováno v:
Materials Research, Vol 12, Iss 1, Pp 95-99 (2009)
The thermal conductivity and mechanical strength of gypsum and gypsum-cellulose plates made from commercial plaster by a new process have been measured. The gypsum parts made by the new process, 'novogesso', have high mechanical strength and low poro
Externí odkaz:
https://doaj.org/article/b1f1b8e832334525922a75b3a61ad90e
Publikováno v:
Materials Research, Vol 11, Iss 2, Pp 183-185 (2008)
Portland cement-based materials are present in our everyday life. Over the last two decades, important developments have been made to improve their mechanical strength, mainly through microstructural design. In addition, another promising parameter s
Externí odkaz:
https://doaj.org/article/d12e3eba262f4e8f8de092e777e9a0f4
Publikováno v:
Materials Research, Vol 1, Iss 1, Pp 53-58 (1998)
Expelling of the liquid phase during sintering of ZrO2-6.5 mol% Y2O3- 0.5 mol% Pr2O3 ceramic was observed as a result of grain coarsening. ZrO2- 7.0 mol% Y2O3 samples, without Pr2O3 addition, do not show this effect under the same sintering condition
Externí odkaz:
https://doaj.org/article/776033863408467f885e6d4d07e1fe29
Autor:
Carlos O. Paiva-Santos, D. P. F. de Souza, Inacio Regiani, Milton Ferreira de Souza, Washington Luiz Esteves Magalhães
Publikováno v:
Journal of the American Ceramic Society. 85:232-238
Nucleation and growth of mullite whiskers in the La 2 O 3- Al 2 O 3- SiO 2 system were investigated in the 1500°-1700°C temperature range. A differential thermal analysis (DTA) showed that the mullitization temperature decreases from 1350°C to 124
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd395b9e4cfbc211fd2027257671d868
https://doi.org/10.1111/j.1151-2916.2002.tb00071.x
https://doi.org/10.1111/j.1151-2916.2002.tb00071.x
Publikováno v:
physica status solidi (b). 241:2898-2904
Ion conducting yttria-stabilized tetragonal zirconia (3YTZ) and Er3+-, Nd3+- and Hf4+-doped 3YTZ ceramics were prepared and studied in this work. It is noted that dopant-induced structural effects, associated with free lattice volume for bulk conduct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62124fcdfa9bb6ee35b9a684ffbfcd9b
https://doi.org/10.1002/pssb.200402063
https://doi.org/10.1002/pssb.200402063
Autor:
Charles L. da Silva, Milton Ferreira de Souza, D. P. F. de Souza, Carlos Alberto Fortulan, Jean-Claude M’Peko, Deusdedit L. Spavieri
Publikováno v:
Solid State Ionics. 156:59-69
Sintered zirconia–alumina composites, prepared in a wide range of compositions, are studied in terms of their electrical response. Both grain conductivity and dielectric constant show the typical characteristics expected from the percolation theory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9911cf212343eca207a7b06d756229ac
https://doi.org/10.1016/s0167-2738(02)00611-2
https://doi.org/10.1016/s0167-2738(02)00611-2
Publikováno v:
Surface and Coatings Technology. 162:131-134
Silicon carbide films were applied on polished and rough mullite substrates by the APCVD technique at 1100, 1200 and 1300 °C, using methyltrichlorosilane as precursor gas. XRD analysis shows that graphite films were deposited on substrates at 1100
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0103674d4c0914c1a699e06ba8fd3994
https://doi.org/10.1016/s0257-8972(02)00405-x
https://doi.org/10.1016/s0257-8972(02)00405-x
Publikováno v:
Surface and Coatings Technology. 155:11-15
Cold plasmas were produced by electrical glow discharges in a gas medium at reduced pressure and at low frequency. The precursor gases used were ethylene, acetylene, butene-1, and vapor of vinyl acetate. The treatment caused the solid softwood surfac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25a9c9b6e7acb8a197de81534acf31c2
https://doi.org/10.1016/s0257-8972(02)00029-4
https://doi.org/10.1016/s0257-8972(02)00029-4
Autor:
D. P. F. de Souza, Inacio Regiani, Jefferson Benedicto Libardi Liborio, Paulo dos Santos Batista, Milton Ferreira de Souza
Publikováno v:
Materials Research. 3:25-30
Silica was extracted from rice hulls by three processing routes, starting with acid treatment followed by burning and milling. The amorphous white silica powder showed a surface area of 260 to 480 m2/g, purity above 99% and average particle size of 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ed20d3b5eaeda3cd8b58b60e580e150
https://doi.org/10.1590/s1516-14392000000200005
https://doi.org/10.1590/s1516-14392000000200005
Publikováno v:
Materials Research, Volume: 11, Issue: 2, Pages: 183-185, Published: JUN 2008
Materials Research v.11 n.2 2008
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Vol 11, Iss 2, Pp 183-185 (2008)
Materials Research v.11 n.2 2008
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Vol 11, Iss 2, Pp 183-185 (2008)
Portland cement-based materials are present in our everyday life. Over the last two decades, important developments have been made to improve their mechanical strength, mainly through microstructural design. In addition, another promising parameter s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ab5e11a5b2a537eae89bf386388832e
https://doi.org/10.1590/s1516-14392008000200012
https://doi.org/10.1590/s1516-14392008000200012