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Previous issue date: 2009-03-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Initially concentrated in some poles at the South and Southeast regions of Brazil, the ceramic tiles industry became wide during the 80 s decade, with a disconcentration industrial and regional pulverization. The competitiveness in the ceramic tiles internal and external consumers markets, it has debtor the industries to invest in sophisticated products each time more, either in design or the technology, but, mainly, in its final properties. Amongst the diverse types of ceramic coating, the porcelanato if has detached had to its process of technological production and excellent characteristics techniques. The Porcelanato is currently the material for coatings that presents the best technical and aesthetic features when compared with others ceramics found on the market. The chemical composition and the others raw materials characteristics have an importance that must to be ally to the inherent characteristics of fabrication process, essentially those related to the cycle of burning. This work had as purpose to develop formularizations of ceramic mass for production of porcelanato without glass coating, pertaining to the group BIa (text of absorption of water ≤ 0.5%) and with resistance superior mechanics 35MPa from raw materials characterized. The ceramic raw materials selected to the development of this study (A1 and A2 clays, feldspate, talc and quartz) were submitted to the following tests: X-ray fluorescence - chemical analysis determination; X-ray diffraction - Analysis of the stages mineralogics; Laser granulometry - size distribution of particles; and Differential thermal analysis - thermal behavior. Were performed tests of absorption of water, lineal retraction of it burns, apparent specific mass and rupture tension the flexing. The results had evidenced that the formularizations that had the A1 clay and talc on its composition were efficient for the porcelanato production remaining their technological characteristics inside of the intervals of variation desired by the Norms of the ABNT / Inicialmente concentrada em alguns p?los de produ??o nas regi?es Sul e Sudeste do Brasil, a ind?stria de cer?mica para revestimento ampliou-se na d?cada de 80, com um processo de desconcentra??o industrial e pulveriza??o regional. A competitividade nos mercados consumidores interno e externo de revestimento cer?mico tem obrigado as ind?strias a investir em produtos cada vez mais sofisticados, seja no design ou na tecnologia, mas, principalmente, nas suas propriedades finais. Dentre os diversos tipos de revestimento cer?mico, o porcelanato tem se destacado devido ao seu processo de produ??o tecnol?gico e excelentes caracter?sticas t?cnicas. O porcelanato ? atualmente o material para revestimentos que apresenta as melhores caracter?sticas t?cnicas e est?ticas quando comparado com os demais materiais cer?micos encontradas no mercado. A composi??o qu?mica e demais caracter?sticas das mat?rias-primas assume uma import?ncia fundamental que deve ser aliada ?s caracter?sticas inerentes ao processo de fabrica??o, essencialmente aqueles relacionados com o ciclo de queima. Este trabalho teve como finalidade desenvolver formula??es de massa cer?mica para produ??o de porcelanato sem vidrado, pertencente ao grupo BIa (teor de absor??o de ?gua ≤ 0,5%) e com resist?ncia mec?nica superior a 35 MPa a partir das mat?rias-primas caracterizadas. As mat?rias-primas cer?micas selecionadas para o desenvolvimento deste trabalho (argila A1, argila A2, caulim, feldspato, talco e quartzo) foram submetidas aos seguintes ensaios: fluoresc?ncia de raios X determina??o da an?lise qu?mica; difra??o de raios X an?lise das fases mineral?gicas; granulometria a laser distribui??o do tamanho de part?culas; e an?lise t?rmica diferencial comportamento t?rmico. Foram realizados ensaios de absor??o de ?gua, retra??o linear de queima, massa espec?fica aparente e tens?o de ruptura ? flex?o. Os resultados obtidos evidenciaram que as formula??es que cont?m a argila A1 e o talco em sua composi??o foram eficazes para a produ??o de porcelanato mantendo suas caracter?sticas tecnol?gicas dentro dos intervalos de varia??o desejadas pelas Normas da ABNT
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/15571 |
| Date | 26 March 2009 |
| Creators | Ara?jo, Pedro Alighiery Silva de |
| Contributors | CPF:80732810400, http://lattes.cnpq.br/8671649752936793, Martinelli, Ant?nio Eduardo, CPF:15724520800, http://lattes.cnpq.br/0022988322449627, Dutra, Ricardo Peixoto Suassuna, CPF:91875838449, http://lattes.cnpq.br/0075804072604913, Paskocimas, Carlos Alberto, 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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