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		<label>lattes: 1546596236306350 3 RodriguesNetoAssi:2012:RePoEm</label>
		<citationkey>RodriguesNetoAssi:2012:RePoEm</citationkey>
		<title>Reduction of Pollutants Emission by Using Zirconia Ceramics as a Thermal Barrier for Aircraft Turbine Fans</title>
		<format>DVD</format>
		<year>2012</year>
		<secondarytype>PRE CI</secondarytype>
		<author>Rodrigues, Luis Augusto Oliveira,</author>
		<author>Neto, Francisco Piorino,</author>
		<author>Assis, Joćo Marcos Kruszynski de,</author>
		<group></group>
		<group></group>
		<group>ETE-ETE-INPE-MCTI-GOV-BR</group>
		<affiliation></affiliation>
		<affiliation></affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<electronicmailaddress>luiz.o.rodrigues@gmail.com</electronicmailaddress>
		<electronicmailaddress></electronicmailaddress>
		<electronicmailaddress>joaomarcosjmka@iae.cta.br</electronicmailaddress>
		<e-mailaddress>joaomarcosjmka@iae.cta.br</e-mailaddress>
		<conferencename>International Conference of Young Researchers on Advanced Materials.</conferencename>
		<conferencelocation>Cingapura</conferencelocation>
		<date>2012</date>
		<booktitle>Proceedings</booktitle>
		<tertiarytype>Paper</tertiarytype>
		<transferableflag>1</transferableflag>
		<contenttype>External Contribution</contenttype>
		<keywords>zirconia ceramics, thermal barrier, metallic substrates, aircraft turbine fans.</keywords>
		<abstract>Zirconia ceramics has great potential for application as thermal barrier at high temperatures. Thermal barriers on metallic substrates of aircraft turbine fans are used to increase the turbineās temperature and thus generates a better combustion that improve their performance and reducing their consumption. So, the emission of pollutants such as CO and CO2 also decrease, which justifies the use of zirconia as a material for environmental protection. This work aims the application of zirconia with equimolar addition of yttrium and niobium oxides, as a thermal barrier. Different routes to obtain this material were analyzed. Samples were obtained with equimolar additions of 14.5, 16 and 17.5%, using planetary mill. These samples were sintered in air and in vacuum at 1500, 1550, 1600 and 1650°C. After sintering, the samples were characterized by measurement of specific mass, Vickers hardness and fracture toughness. The results showed that the samples sintered at 1600 and 1650°C in vacuum have improved hardness and fracture toughness behavior, which are important to improve the wear resistance.</abstract>
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		<language>en</language>
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