DEVELOPMENT AND CHARACTERIZATION OF CERAMIC COMPOSITES (AL2O3-TiO2) REINFORCED WITH CEO2 FOR THE MANUFACTURE OF INERT COATINGS IN METALLIC TANKS OF THE PETROLEUM INDUSTRY.

Reference	Presenter	Authors (Institution)	Abstract
09-104	NOELLE D'EMERY GOMES SILVA	SILVA, N.D.(UNIVERSIDADE FEDERAL DE PERNAMBUCO); Domingues, R.O.(UNIVERSIDADE FEDERAL DE PERNAMBUCO); Ferreira, R.A.(Universidade Federal de Pernambuco); YADAVA, Y.P.(UNIVERSIDADE FEDERAL DE PERNAMBUCO);	The need to develop technologies that make possible the optimization of petroleum processes and transportation is notorious due to the importance of its derivatives in modern society. Knowing that crude petroleum generates hostile environments due to the corrosive and chemically reactive nature, it is necessary to find materials that are able to withstand the imposed weather. Petroleum storage and transportation tanks are made of metal materials, which undergo surface degradation, becoming a critical problem in the oil industry. One way of solving this problem is the use of ceramics as an inert coating to harsh environments. The type of material most suitable for an inert coating to harsh environments is ceramic based on alumina. With the application of the inert coating, it is possible to avoid the process of corrosion and wear of the tanks and reservoirs, besides a longer time between the maintenances. In the present work, we produced alumina-titania ceramic composites (Al2O3-TiO2) reinforced with rare earth oxide - CeO2, with a variation between the samples of 5% and 7% by weight of Ceria and 10%, 15% and 20% by weight of Titania, which have as characteristics high mechanical resistance and resistance to the hostile environment created by crude Petroleum. The composites were produced by a thermomechanical process, sintered at a temperature of 1350°C and studied structural, microstructural and mechanical properties through X-Ray Diffraction, optical microscopy, Scanning Electron Microscopy (SEM) and Vickers Microhardness. By X-ray diffraction analysis showed that no new phase was formed, indicating the formation of the desired composites. In order to analyze the stability of the developed composites, comparisons of mechanical and structural properties were performed before and after immersion in crude oil. The results of this study will be analyzed, discussed and presented in this work.
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