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Previous issue date: 2012-10-01 / In recent decades, ceramic products have become indispensable to the technological
development of humanity, occupying important positions in scientific production and
consequently in industrial production. One area of the economy that continues to
absorb large amounts of the products of this sector is Construction. Among the
branches of the ceramic industry, there are the red ceramic industry which is
traditionally the basis of that economic sector. Among the reasons for which the red
ceramic industry became popular in the country, and specifically in Rio Grande do
Norte, is the abundance of this raw material, easily found throughout the national
territory. However, it appears that the red ceramic industry has deficiencies in
technology and skilled labor, resulting in the production of ceramic goods with low
added value. Among the factors that determine the quality of the ceramic products
red has the proper formulation of the ceramic mass, the conformation and the firing
temperature. Thus, the overall goal of this work is to study the mineralogical and
technological properties, two clays from the region of the Wasteland Potiguar
industrial ceramist. Therefore, the raw materials were characterized by analysis of Xray
diffraction (XRD) analysis, X-ray fluorescence (XRF), particle size analysis (FA),
scanning electron microscopy (SEM), optical microscopy (OM ), plasticity index (PI),
thermal gravimetric analysis (TGA) and differential thermal analysis (DTA). The
technological properties of the material were analyzed by water absorption tests
(AA%) porosity (% PA), the linear shrinkage (RT%), apparent density (MEA), loss on
ignition (PF%) and flexural strength three points (TRF) / Nas ?ltimas d?cadas, os produtos cer?micos se tornaram indispens?veis para o
desenvolvimento tecnol?gico da humanidade, ocupando posi??es importantes na
produ??o cient?fica e consequentemente na produ??o industrial. Uma das ?reas da
economia que continua absorvendo grandes quantidades dos produtos desse setor
? a Constru??o Civil. Entre os ramos do setor ceramista, destacam-se as ind?strias
de cer?mica vermelha que ? tradicionalmente a base desse segmento econ?mico.
Entre os motivos pelo quais as ind?strias de cer?micas vermelhas se popularizaram
no pa?s, e especificamente no Rio Grande do Norte, ? a abund?ncia dessa mat?ria
prima, encontrada com facilidade por todo territ?rio nacional. Entretanto, constata-se
que a ind?stria de cer?mica vermelha possui defici?ncias em tecnologia e m?o de
obra qualificada, resultando na produ??o de pe?as cer?micas com baixo valor
agregado. Entre os fatores que determinam a qualidade dos produtos da cer?mica
vermelha, tem-se a formula??o adequada da massa cer?mica, a conforma??o e a
temperatura de queima. Sendo assim, o objetivo geral desse trabalho ? estudar as
propriedades mineral?gicas e tecnol?gicas, de duas argilas provenientes da regi?o
do Agreste Potiguar para a ind?stria ceramista. Para tanto, as mat?rias primas foram
caracterizadas atrav?s das an?lises de difratometria de Raios-X (DRX), an?lise de
fluoresc?ncia de Raios-X (FRX), an?lise granulom?trica (AG), microscopia eletr?nica
de varredura (MEV), microscopia ?ptica (MO), ?ndice de plasticidade (IP), an?lise
termogravim?trica (ATG) e an?lise t?rmica diferencial (ATD). As propriedades
tecnol?gicas do material foram analisadas pelos ensaios de absor??o de ?gua
(AA%), porosidade aparente (PA%), retra??o linear (RT%), massa espec?fica
aparente (MEA), perda ao fogo (PF%) e resist?ncia a flex?o em tr?s pontos (TRF)
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/15687 |
| Date | 01 October 2012 |
| Creators | Monteiro, Flanelson Maciel |
| Contributors | CPF:80732810400, http://lattes.cnpq.br/8671649752936793, Paskocimas, Carlos Alberto, CPF:06296687877, http://lattes.cnpq.br/2365059843175411, Silva, Ariadne de Souza, CPF:00735940401, http://lattes.cnpq.br/5623381698478389, Silva, Gilson Garcia da, CPF:56634161453, http://lattes.cnpq.br/8681275097040450, 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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