Production of high brittle toughness aluminatitania ceramic composite coatings for crude petroleum oil storage tanks

PRODUCTION OF HIGH BRITTLE TOUGHNESS ALUMINATITANIA CERAMIC COMPOSITE COATINGS FOR CRUDE PETROLEUM OIL STORAGE TANKS Sheila Alves Bezerra Silva, (sheila_quimica@hotmail.com) Timóteo Weiss Gomes Santos, (timoteoweiss@gmail.com) Ricardo Artur Sanguinetti,Ferreira, (ras@ufpe.br) Yogendra Prasad Yadava, (yadava@ufpe.br) Departamento de Engenharia Mecânica, Universidade Federal de Pernambuco, 50741-530, Recife-PE, Brazil Abstract: The increasing development of the petroleum industry has required new technologies in the production of materials that resist the corrosive environments such as storage and transportation of crude oil. Accordingly, the ceramic materials that are highly resistant to hostile environments have great potential for such applications. As ceramic materials are fragile, in this work we have produced alumina-titania based ceramic composites having high brittle toughness and high mechanical strength. Alumina-titania ceramic composites added with 1-3% ceria were produced through thermo-mechanical processing and normal sintering techniques.structural, microstructural characterizations and mechanical tests were carried out to evaluate the use of these composites in the manufacture of crude petroleum oil storage tanks made of metallic matrix coated with the composites ceramics developed in this work. The results will be presented and discussed in this paper. Keywords: alumina-titania, brittle toughness, crude petroleum, storage tanks 1. INTRODUCTION

Protective Coatings TECHNOLOGY UPDATE NO. 11 Inspection of Fluorescent Coating Systems 1. Scope Protective coating systems, when properly selected and applied, will protect the underlying substrate from corrosion and deterioration. Confirming that the coating has been applied correctly can require an extensive and lengthy inspection process. The use of fluorescent coatings in a coating system permits faster identification of holidays and areas with low film thickness. This…

PAINTING OVER HOT DIP GALVANIZED STEEL Thomas J. Langill, Ph.D., Technical Director American Galvanizers Association 12200 E. Iliff Ave. Suite 204 Aurora, CO 80014 Abstract: Duplex systems, also known as painting over hot dip galvanized steel, are extremely effective corrosion protection systems. However, careful surface preparation techniques need to be used to alleviate potential coating failures. Use the age and characteristics of the galvanized coating to determine what type of…

advantage of the combined approaches of a specifically colon-biodegradable pectin matrix with a pH-sensitive Eudragitw S100 polymeric coating. The developed system was able to suitably retard the onset of drug release and to provide a colon-specific delivery, thus overcoming the problems of pectin solubility in the upper gastrointestinal tract and low site-specificity of simple pH-dependent systems. Due to the poor compactability properties of pectin, it was used in mixture with Emdexw, a…

SAMARA OLIVEIRA SANTOS 2015078627 SUELEN GARCIA DE ANDRADE 2015069792 ART COATING PINTURAS TÉCNICAS INDUSTRIAIS LTDA EPP Guarulhos 2015 Alunos: RA: AMARAILDE DE OLIVEIRA REZENDE SILVA 2015005204 FERNANDA PEREIRA VASCONCELLOS 2015017628 FERNANDO GOMES DA SILVA 2015007070 FRANKLIN DE OLIVEIRA SANTOS 2015065606 JANE FRANCISCO DA SILVA 2015095742 LARQUENSIEL ALVES SANTA ROSA 2015006707 MARIA DE FÁTIMA PEREIRA DO NASCIMENTO 2015083426 SAMARA OLIVEIRA SANTOS 2015078627 SUELEN…

Materials, 1979, Designation ANSI/ASTM-C633-Standard Test Methods for Adhesion or Cohesive Strength of Flame Sprayed Coatings, Philadelphia, PA, USA. ASTM - American Society for Testing and Materials, 1985, Designation G-65-Standard Practices for Conducting Dry Sand/Rubber Wheel Abrasion Tests, Philadelphia, USA. Berger, L.M., Vuoristo, P., Mantyla, T., Kunert, W., Lengauer, W. & Ettmayer, P., 1996, Microstructure and properties of WC-Co-Cr coatings, Thermal Spray: Practical…

pelo diâmetro das partículas e pelo método de síntese. Dentre as diversas técnicas de preparação tanto de pós ultrafinos quanto de filmes, uma que vem se destacando é o método Pechini (ou método dos precursores poliméricos) que possui a vantagem de fornecer materiais com características bem definidas e, variando-se as condições de síntese, pode-se controlar a morfologia do produto final, além de ser um método de custo relativamente baixo e que não necessita de aparelhagens…

due to the high thermal insulation provided by the vacuum gaps either side of the middle glass pane; consequently the heat absorbed from the sun by the middle glass pane cannot be easily transferred to the indoor and outdoor environments. For 0.5 m by 0.5 m and 1 m by 1 m triple vacuum glazing exposed, to isolation levels greater than 200 W.m-2 and 180 W.m-2 respectively with four 0.03 emittance coatings, the middle glass sheet temperature is larger than that of the indoor and outdoor…

revestimentos feitos pelo sistema de Drywall. Que é basicamente um meio de construção feita ao seco, que podesubstituir facilmente outros tipos de execução, como por exemplo, a alvenaria comum. Sem perca de qualidade. As suas chapas e demais componentes são todos industrializados, chegando ao canteiro de obraspronto, para sua montagem sua final. Isso diminui o tempo, gastos e facilita a execução do projeto. Tornando também a obra mais limpa, sendo assim benéfica ao meio ambiente, e de…

é dependente das propriedades mecânicas da camada nitretada na região da interface. A adesão aumenta quando a relação H/E e o grau de recuperação elástica da camada nitretada torna-se próximo ao do TiN. Palavras-chave: Nitretação por plasma; Superfícies; Revestimento; Adesão. USE OF PLASMA A NITRIDING PRE-TREATMENT AND TiN-PVD FOR GENERATION OF DUPLEX SURFACE ON AISI H13 STEEL Abstract Coating adhesion on hot work tool steels type AISI H13 after plasma pre-nitriding treatment is…