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Previous issue date: 2007-06-01 / The study of the physical and mechanic properties is an analysis of unquestioned importance on the production of the ceramic materials. In the region of the Rec?ncavo Baiano, there are ceramic and small brick factories, that still use rudimentary techniques, where the necessity of
characterization of raw materials is denounced by the quality of the final product. The present work has for objective to study the behavior of the clay proceeding from the
region of the Rec?ncavo, between the cities of Candeias and Cama?ari/Ba, with addition of 5, 10 and 15% by weight of brick scraps, trying to optimize the physic and mechanical
properties of the final product, aiming a better possibility of being manufactured, mechanic resistance, low linear retraction and water absorption. The brick scraps and the clay were characterized by FRX, DRX, TG, ATD and the granulometric analysis. Samples for testing where prepared by uniaxial pressing at 25Mpa, in 60x20x5mm size. The evaluated
technological properties were: linear retraction, water absorption, apparent porosity and flexural strength. The samples were burned in electric oven in the temperatures of 850?, 950? and 1050?C and compared its mechanical properties and the gresification. With addition of 15% by weight of brick scraps and burning at 900?-1000?C the samples showed properties superior to that clay / O estudo das propriedades f?sicas e mec?nicas ? uma an?lise de import?ncia inquestion?vel na produ??o dos materiais cer?micos. Na regi?o do Rec?ncavo Baiano, encontram-se cer?micas e pequenas olarias, que ainda utilizam t?cnicas rudimentares, onde a necessidade de caracteriza??o das mat?rias-primas ? denunciada pela qualidade do produto final.
O presente trabalho tem por objetivo estudar o comportamento da argila proveniente da regi?o do Rec?ncavo Baiano, compreendida entre os munic?pios de Candeias e Cama?ari, com adi??o de 5, 10 e 15% em peso de rejeitos cer?micos, procurando otimizar as propriedades f?sico-mec?nicas do produto final, visando uma melhor trabalhabilidade, resist?ncia mec?nica e baixas retra??o linear e absor??o de ?gua. O rejeito cer?mico e a argila foram caracterizados por FRX, DRX, TG, ATD e analise granulom?trica. Foram preparados corpos-de-prova com
dimens?es de 60x20x5mm, por prensagem uniaxial a 25MPa. As propriedades tecnol?gicas avaliadas foram: retra??o linear, absor??o de ?gua, porosidade aparente e resist?ncia mec?nica
? flex?o. Os corpos foram sinterizados em forno resistivo nas temperaturas de 850?, 950? e 1050?C e comparadas suas propriedades mec?nicas e a gresifica??o. Obteve-se para os corpos com incorpora??o de 15% em peso de rejeitos cer?micos, propriedades superiores as da argila, nas temperaturas entre 900? e 1000? C
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/15526 |
| Date | 01 June 2007 |
| Creators | Santos, Osvaldo Cruz |
| Contributors | CPF:80732810400, http://lattes.cnpq.br/8671649752936793, Martinelli, Ant?nio Eduardo, CPF:15724520800, http://lattes.cnpq.br/0022988322449627, Paskocimas, Carlos Alberto, CPF:06296687877, http://lattes.cnpq.br/2365059843175411, Santos, Antonio Carlos Pereira, CPF:07253273591, http://lattes.cnpq.br/1167400191007184, Nascimento, Rubens Maribondo do |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Engenharia Mec?nica, UFRN, BR, Tecnologia de Materiais; Projetos Mec?nicos; Termoci?ncias |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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