Efeito do tratamento térmico sobre o grau de molhabilidade de liga experimental Ti-30Ta

• Autor(a) principal: Coser, Marchelo Augusto [UNESP]
• Data de Publicação: 2010
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/203273; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2019-04-18/000911791.pdf
• topic: Titânio; Tensão superficial; Ligas dentárias; Titanium

Although the Ti-6Al-4V is still employed in the biomedical area due to its excellent mechanical properties and corrosion resistance, studies have shown that the release of vanadium ions and aluminum can cause health problems in the long term, which has led the development of new titanium alloys. At present new formulations for dental alloys based on titanium have been proposed adding chemicals with satisfactory physical and biological qualities, such as wear resistance, low modulus and biological behavior of the facilitator osseointegration. In turn, osseointegration depends on the material used, the manufacturing process, design, machining conditions, surface finish, type of bone receiving the implant, surgical technique, type of prosthesis that will apply over the implants and loading conditions during mastication. The aim of this study was to evaluate the wettability of Ti-30Ta experimental alloy when subjected to heat treatment. Were made 20 discs of Ti-30Ta alloy with 13mm in diameter and 3 mm thick, divided into two groups: GI and GII, control and heat treatment: treatment at 300 º C for 1h in an electric furnace. All specimens were taken Goniômetro300-F1 (Ramé-Hard Inst.Co) for reading the contact angle. Results showed mean values of 82,5+0.98 for GI and 23,31+0,06 for GII. It is concluded that the thermal treatment allowed higher wettability and lower surface tension to the material