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Mostrando ítems 11-20 de 21
Obtenção de estruturas porosas altamente bioativas via sinterização do Biosilicato®
(Universidade Federal de São Carlos, 2009-04-07)
In the present work, scaffolds were obtained through the controlled sintering of Biosilicate®. This material possesses good mechanical properties and its bioactivity level is comparable to that of bioglasses, making it an ...
Obtenção e condutividade elétrica de vitrocerâmica Li1+xAlxTi2-x(PO4)3 com diferentes microestruturas
(Universidade Federal de São Carlos, 2009-08-21)
Technological advances in portable devices imply not only the development of devices but also the need to enhance their power sources. For instance, cellular phones with high technology incorporating Bluetooth, Infrared, ...
Condutividade elétrica da solução sólida céria-zircônia dopada com ítrio e gadolínio
(Universidade Federal de São Carlos, 2009-09-10)
Rare earth doped ceria has a great potential to be used as electrolyte in temperatures around 800 °C in fuel cells due to its higher electrical conductivity than YSZ. However, the reduction of Ce+4 to Ce+3 in low oxygen ...
Efeito dos materiais do backing bar na geometria e dureza de juntas soldadas por FSW em ligas de alumínio 6013 e 2024
(Universidade Federal de São Carlos, 2009-08-12)
Solid-state joining techniques such as Friction Stir Welding (FSW) are a natural choice to produce weld low heat input, limited slight distortion and low microstructural and mechanical degradation. Great effort has currently ...
Sílica coloidal como agente ligante e fonte mulitizadora em concretos refratários
(Universidade Federal de São Carlos, 2009-03-03)
The recent development of refractory castables for high temperatures applications are closely related to binders technology, especially those presenting superior performance and installation properties. The calcium aluminate ...
Estudo da dispersão de pigmentos orgânicos em resina de polipropileno para aplicação em fibras e filamentos
(Universidade Federal de São Carlos, 2009-08-03)
Polypropylene has become widely used in fiber and filament applications; most part of these applications use colorful pigments to satisfy aesthetic necessities, communication, identification and others. To achieve the ...
Aluminato de lantânio puro e dopado: obtenção e caracterização elétrica
(Universidade Federal de São Carlos, 2009-02-20)
In the attempt to find new electrolyte materials for Solid Oxide Fuel Cells (SOFC) that works at low temperature, perovskite-type materials have been intensively investigated. These materials have favorable crystal structure ...
Estudo da influência da adição de serragem de couro tratada quimicamente nas características de argamassas de cimento Portland
(Universidade Federal de São Carlos, 2009-05-15)
The purpose of this study was to examine the major environmental concern for the large volume of toxic wastes generated by industries of tanneries and the search for a technological solution for the treatment of this waste. ...
Influência de defeitos nas propriedades mecânicas de juntas soldadas por FSW da liga AA6013-T6
(Universidade Federal de São Carlos, 2009-04-28)
In 1991, it was developed a solid state welding process called Friction Stir Welding - FSW, intended to increase the number of applications for the aluminum and its alloys. As every welding process the presence of defects ...
Aplicações de resíduo de bauxita e cinza pesada da indústria do alumínio na fabricação de cimento Portland
(Universidade Federal de São Carlos, 2009-02-20)
Presently, a sustainable development is considered fundamental for the success and competitivity company s. Believing in such, the major Brazilian aluminum manufactures have invested, over the last two years, more than U$S ...