Obtenção e caracterização de compósitos de fibras de carbono recobertos com nitreto de silício para aplicações espaciais

• Autor(a) principal: Cintra, Maria Paula de Oliveira Campos [UNESP]
• Data de Publicação: 2016
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/156814; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2018-08-16/000902440.pdf
• topic: Compósitos poliméricos; Fibras de carbono; Nitreto de silicio; Microscopia; Polymeric composites

This work refers to the processing and surface treatment of thermoplastic composites for space applications. After the composites processing, the silicon deposition on its surface was conducted by Plasma Enhanced Chemical Vapor Deposition (PECVD). The following step was to perform the Plasma Immersion Ion Implantation (PIII) on the deposited silicon to create a silicon nitride layer. After this treatment, the characterization of the samples was performed on untreated and treated samples for comparison. Several characterization techniques were conducted, such as: Optical Microscopy, Atomic Force Microscopy (AFM), X-Ray Photoelectron Spectroscopy (XPS), X-ray Diffraction (XRD), Nanoidentation and Scratching. Through the analysis of all the characterizations, it was concluded that it is possible to achieve a silicon nitride layer on the PPS/CF composite without damage it. Concerning the application of this material at space environment (low orbit), this result is fundamental and innovator in an international scenario.