Porous Ceramics
Mostrando 25-31 de 31 artigos, teses e dissertações.
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25. Propriedades de biocerâmicas porosas de fosfato de cálcio obtidas com matérias-primas de origem orgânica e sintética
Calcium phosphate ceramics applied to bone tissue repair is an option for functional bone wound healing. Calcium phosphate utilized in this work has been originated from calcined bovine bone samples or a commercial brand of biphasic calcium phosphate (BCP). In this work, calcium phosphate added with alkaline carbonates and other raw-materials have been mixed
Publicado em: 2007
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26. Electronic ceramics based on polycrystalline SnO2, TiO2 and (Sn xTi1-x)O2 solid solution
In the present text we discuss on electronic properties arising from polycrystalline semiconductor ceramics of SnO2, TiO2 and (Sn xTi1-x)O2 solid solution rutile-type structure. This is intended to be a short overview of the most recent papers in this area. One of the most important content discussed in this text is based on sinterability of these polycrysta
Materials Research. Publicado em: 2006-09
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27. Influence of processing parameters on structural characteristics of porous calcium phosphate samples: a study using an experimental design method
Synthetic porous ceramics can be used as three-dimensional scaffolds for bone repair. The aim of this work is to correlate process parameters with scaffolds structural characteristics. The factorial 2 level experimental design was chosen to study the effect of the Ca/P ratio (1.58 or 1.67), calcination temperature (1000 or 1150 °C) and porogen content (20 o
Materials Research. Publicado em: 2005-03
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28. CaracterizaÃÃo MecÃnica e Microestrutural de CerÃmicas Porosas Obtidas A Partir de Diferentes Aluminas / Mechanical and Microstructural Characterization of Porous Ceramics Obtained from Different Aluminas The
O interesse em cerÃmicas porosas vem aumentando, à medida que novos processos vÃo sendo desenvolvidos, e as aplicaÃÃes decorrentes representam oportunidades tecnolÃgicas e econÃmicas substanciais. Para cada aplicaÃÃo, hà pelo menos uma propriedade relevante e deve ser avaliada, dependendo da funÃÃo: fÃsica, quÃmica e biolÃgica. Dentre as vÃri
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2003
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29. Mechanical characterisation of porous glass reinforced hydroxyapatite ceramics: Bonelike®
In the present study, mechanical properties of porous glass reinforced hydroxyapatite bioceramics were assessed by microhardness, bending and compression tests and fracture toughness determination. Porous discs were produced by a dry method using wax spheres as pore formers. Green bodies were sintered and the final microstructure of the composites consists o
Materials Research. Publicado em: 2003-06
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30. A utilização de materiais obtidos pelo processo de sol-gel na construção de biossensores
The use of sol-gel materials to develop new biosensors has received great attention due to its characteristics and versatility of sol-gel process. An overview is presented of the state-of-the-art of electrochemical biosensors employing sol-gel materials. Low-temperature, porous sol-gel ceramics represent a new class for the immobilization of biomolecules. Th
Química Nova. Publicado em: 2002-09
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31. Adequação de um lisimetro de sucção para monitoração da agua do solo em saneamento
The preservation of water resource is a question of surViva1 of -humanity,being one ofgreat preocupations os leadership politics, scientifics and academics. Nevertheless,is necessary to adapt the monítoring this resources of a brazílian reality, using equipments of easy operation and cost lous. For example, the lysimeters the succtíon are constitutíve fo
Publicado em: 2001