Aluminum Carbide
Mostrando 13-18 de 18 artigos, teses e dissertações.
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13. Nucleation and growth of austenite/VC eutectic in alloys of the Fe-V-C system. / Nucleação e crescimento do eutético austenita/VC em ligas do sistema Fe-V-C.
The three most commercially important families of alloys for the foundry industry show the formation of faceted/non-faceted eutectics type during solidification: cast irons with graphite (austenite/graphite eutectic), white cast irons (austenite/carbide eutectic) and Al-Si alloys (alfa/silicon eutectic). In the case of white cast irons, the eutectic carbide
Publicado em: 2008
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14. Current distribution in high current rectifier semiconductors - real case study. / Distribuição de corrente entre semicondutores em retificadores de alta corrente - estudo de casos reais.
The industrial electrolytic processes to produce, aluminum, cooper, zinc, nickel, manganese, silicon carbide, chlorine and its derivative, require current values which greatly exceed the capability of single rectifying devices and paralleled combinations of semiconductors or equipments are necessary. This study evaluated through a comparative analyzes twenty
Publicado em: 2008
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15. INFLUENCE OF KAOLIN CAMPO ALEGRE CONCENTRATION ON THE PHYSICAL AND MECHANICAL PROPERTIES OF SILICON CARBIDE/ALUMINUM COMPOSITES / INFLUÊNCIA DA CONCENTRAÇÃO DE CAULIM CAMPO ALEGRE NAS PROPRIEDADES FÍSICAS E MECÂNICAS DE COMPÓSITOS DE CARBETO DE SILÍCIO/ALUMÍNIO
O processo de infiltração de cerâmicas por metal fundido é uma técnica bastante promissora para fabricação de compósitos. Também conhecida por squeeze-casting, permite a infiltração de pré-formas cerâmicas altamente porosas ou sistemas particulados das mais diversas naturezas, com o principal objetivo de obtenção de propriedades especiais, tai
Publicado em: 2007
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16. Avaliação de diversos métodos para remoção da resina remanescente após descolagem de bráquetes ortodônticos.
The purpose of this study was to evaluate the alterations on enamel surface after the use of 5 different techniques to remove remnant resin after bracket debonding. The sample was constituted of 50 human premolars, extracted for orthodontic and periodontal purposes, whose vestibular faces were submitted to surface rugosimetric analysis, carried out at 3 dist
Publicado em: 2006
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17. Minimum lubrication in Al-Si drilling
The high percentage of the refrigeration costs (17%) in the operational production costs, the ecological subjects, the lawlegal demands related to the preservation of the environment and the human health justify the recent researches about the restriction towards the use of abundant cutting fluid in machining processes. However, it is important to point out
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2003-03
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18. Resistencia de união de resinas compostas de dupla ativação ao titanio c.p
The aim of this study was to evaluate the tensile bond strength of commercially pure Titanium bonded to the luting composite resins Panavia Fluoro Cement and Re1y X ARC. One hundred twenty Titanium discs were casted and embedded in PVC tubes with cold-cured acrylic resin. The edges of the Titanium discs containing tubes were cut and the Titanium discs were g
Publicado em: 2001