Zobrazeno 1 - 10
of 25
pro vyhledávání: '"S. Mello Castanho"'
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 1229-1235 (2024)
The use of nuclear materials is increasing in energy production, medicine, and environmental sectors. Following this trend, the generation of radioactive wastes is also increasing in the whole production cycle and use of this kind of materials. Among
Externí odkaz:
https://doaj.org/article/d7378a28d3514b30b2a84e32317153bc
Autor:
S. Mello Castanho, R. Moreno
Publikováno v:
Cerâmica, Vol 44, Iss 287-288, Pp 141-145 (1998)
alpha- Si3N4 can easily oxidize when exposed in air atmosphere or other oxidizing environment. The chemistry of Si3N4 particle surfaces can change by different synthesis routes and also by subsequent processing steps. To avoid this oxidation is a cha
Externí odkaz:
https://doaj.org/article/f93074a55a0e4e41bccf8828b843e16b
Publikováno v:
Journal of Materials Research and Technology, Vol 13, Iss , Pp 154-161 (2021)
A modified 45S5 Bioglass® containing 2 mol% alumina and 2 mol% strontium oxide was prepared. In vitro bioactivity in powder and monolithic samples was conducted. Fourier transform infrared analysis and pH change in simulated body fluid were investig
Externí odkaz:
https://doaj.org/article/3e81ae62b35b40b48d36359a2d758767
Publikováno v:
Ceramics International. 48:18433-18440
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4df7e2ce5c044af98b09dba6f1b2399a
https://doi.org/10.1016/j.ceramint.2022.03.112
https://doi.org/10.1016/j.ceramint.2022.03.112
Akademický článek
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Publikováno v:
Journal of Non-Crystalline Solids. 289:151-154
In the present work a new route for the synthesis of α-Y2Si2O7 is reported. The method consists in the gelation of an acid solution composed by Y(NO3)3 and tetraethylorthosilicate (TEOS) in the adequate molar ratio to form a precusor complex gel con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7c383d2777f5ac0028e380b18b106a8
https://doi.org/10.1016/s0022-3093(01)00716-5
https://doi.org/10.1016/s0022-3093(01)00716-5
Autor:
S. Mello Castanho, Rosa Giménez Moreno
Publikováno v:
Cerâmica. 44:233-237
Apresentam-se os estudos relacionados ao processamento de pós de Si3N4, sistematizando-se cada etapa dos processos de conformação por colagem e colagem sob pressão. A avaliação das propriedades eletroforéticas e do comportamento reológico pos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe9d426f2dcb0601c2e5e65add43dec8
https://doi.org/10.1590/s0366-69131998000600005
https://doi.org/10.1590/s0366-69131998000600005
Autor:
Rosa Giménez Moreno, S. Mello Castanho
Publikováno v:
Cerâmica, Vol 44, Iss 287-288, Pp 141-145 (1998)
alpha- Si3N4 can easily oxidize when exposed in air atmosphere or other oxidizing environment. The chemistry of Si3N4 particle surfaces can change by different synthesis routes and also by subsequent processing steps. To avoid this oxidation is a cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9baac3ba18171be8b5c707d53103e7de
https://doi.org/10.1590/s0366-69131998000400006
https://doi.org/10.1590/s0366-69131998000400006
Akademický článek
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Publikováno v:
Journal of the European Ceramic Society. 18:1381-1384
In the present work a new and simple method for the synthesis of α-Y2-Si2O7 nanoparticles is reported. The method consists of the reaction of Y(NO3)3 and TEOS in the adequate molar ratio to form a precursor complex gel composed by two cations, Si an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e1bc7cadf63240a4fefd222fa4d4702
https://doi.org/10.1016/s0955-2219(98)00068-5
https://doi.org/10.1016/s0955-2219(98)00068-5