Metal Ceramic Systems
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Análisis de la forma de onda de señales de Emisión Acústica producida en ensayos de interfaces ceramo-metálicas
ABSTRACT The study of ceramic-metal interface is of special importance in odontology area by the current demand about dental prostheses, so it is very important to be more and more similar to natural teeth and with a long service life. With the aim of assessing in detail the behavior of ceramic-metal interface used in dental restorations systems, in this wor
Matéria (Rio J.). Publicado em: 19/07/2018
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2. Ballistic Efficiency of Multilayered Armor Systems with Sisal Fiber Polyester Composites
The urban violence and the different types of global armed conflicts demand efficient protective systems against high energy ammunition. Multilayered Armor Systems (MAS) provide efficient protection by making use of lighter and more efficient materials. A typical MAS may be composed of three layers: a front ceramic followed by a composite, backed by a ductil
Mat. Res.. Publicado em: 15/01/2018
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3. Finite Element Modelling for Static and Free Vibration Response of Functionally Graded Beam
Abstract A 1D Finite Element model for static response and free vibration analysis of functionally graded material (FGM) beam is presented in this work. The FE model is based on efficient zig-zag theory (ZIGT) with two noded beam element having four degrees of freedom at each node. Linear interpolation is used for the axial displacement and cubic hermite int
Lat. Am. j. solids struct.. Publicado em: 2016-04
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4. Internal fit of two all-ceramic systems and metal-ceramic crowns
OBJECTIVES: The aim of this study was to investigate the internal fit (IF) of glass-infiltrated alumina (ICA - In-Ceram Alumina), yttria-stabilized tetragonal zirconia polycrystals (Y-TZP - IPS e.max ZirCAD), and metal-ceramic (MC - Ni-Cr alloy) crowns. MATERIAL AND METHODS: Sixty standardized resin-tooth replicas of a maxillary first molar were produced for
Journal of Applied Oral Science. Publicado em: 2012-04
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5. Avaliação da adaptação marginal implante/coping cerâmico antes e após ciclagem mecânica / Evaluation of marginal adaptation implant/ceramic coping before and after mechanical cycling
Coroas livres de metal vêm sendo cada vez mais utilizadas e preconizadas na odontologia atual. A grande variedade de cerâmicas e a evolução das propriedades desses materiais suscitaram vários estudos sobre a adaptação marginal, tanto para dente, quanto para implantes com plataforma regular em ombro. No entanto, a plataforma dos implantes Straumann em
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/10/2010
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6. Biaxial flexural strength of Turkom-Cera core compared to two other all-ceramic systems
Advances in all-ceramic systems have established predictable means of providing metal-free aesthetic and biocompatible materials. These materials must have sufficient strength to be a practical treatment alternative for the fabrication of crowns and fixed partial dentures. OBJECTIVES: The aim of this study was to compare the biaxial flexural strength of thre
Journal of Applied Oral Science. Publicado em: 2010-12
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7. SYNTHESIS AND CERAMIC PROCESSING OF ALUMINA AND ZIRCONIA BASED COMPOSITES INFILTRATED WITH GLASS PHASE FOR DENTAL APPLICATIONS / Síntese e processamento de compósitos á base de alumina e zircônia com infiltração de fase vítrea para aplicações odontológicas
The interest for the use of ceramic materials for dental applications started due to the good aesthetic appearance promoted by the similarity to natural teeth. However, the fragility of traditional ceramics was a limitation for their use in stress conditions. The development of alumina and zirconia based materials, that associate aesthetic results, biocompat
Publicado em: 2009
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8. Influência do número de refundições da liga Ni-Cr-Mo-Ti sobre as propriedades de próteses metalocerâmicas
A frequently encountered difficulty in oral prosthetics is associated with the loss of metallic alloys during the melting stage of the production of metal-ceramic replacement systems. Remelting such materials could impar their use in oral rehabilitation due to loss in esthetics, as well as in the chemical, physical, electrochemical and mechanical properties.
Publicado em: 2008
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9. Compósitos cerâmicos porosos de alumina - zircônia para aplicação em sistemas de controle térmico para satélites: obtenção e caracterização / Alumina-zirconia porous ceramic composites for application in satellite thermal control systems: obtaining and characterization
To control the temperature of satellites are used various thermal control heat systems. The Loop Heat pipe (LHP) are being developed at the DEM (Space Mechanic and Control Division) of the INPE (National Institute for Space Research) an apparatus for passive heat control of the satellites components. The main components of the LHP system are: capillary evapo
Publicado em: 2008
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10. AVALIAÇÃO DE DESEMPENHO TÉRMICO DE EDIFÍCIO INSTITUCIONAL ESTRUTURADO EM AÇO. O CASO DA SEDE DA PREFEITURA MUNICIPAL DE MARIANA, MG.
The evaluation of building thermal performance, by numerical simulation, can greatly contribute to improving the thermal comfort of built environments and a reduction in energy consumption, in the heating and / or cooling of environments, providing means to optimize projects in the energy performance of buildings. So when conditions for human comfort within
Publicado em: 2008
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11. Avalição in vitroda resistência ao cisalhamento de braquetes colados em diferentes sistemas cerâmicos / In vitro short-term evaluation of shear strength of brackets bonded to different porcelain systems
Orthodontic treatment in the adult population has lately gained popularity in an attempt to improve esthetic and function. It is, however, a common feature in these patients, that their dentition is restored by resin veneers, porcelain fused to metal and all ceramic crowns. In this context, the orthodontist faces the challenge of bonding brackets to differen
Publicado em: 2007
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12. Avaliação da resistencia de união entre uma ceramica de alto conteudo cristalino - zirconia - e dois cimentos resinosos, apos diferentes tratamentos de superficie / Evaluation of the bond strength between a high-crystalline content ceramic - zirconia - and two luting systems, after different surface treatments
A dificuldade em se obter valores de união elevados e duradouros entre cimento resinoso e cerâmicas de alto conteúdo cristalino tem limitado o emprego destes materiais. Desta maneira, o objetivo deste estudo foi avaliar a resistência de união entre dois cimentos resinosos e uma cerâmica à base de dióxido de zircônio após diferentes tratamentos supe
Publicado em: 2006