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Showing 1 to 1 of 1 for “"Ensaio ultrassônico"”.
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Caracterização do efeito whitening em polifluoreto de vinilideno (PVDF) por ensaio ultrassônico
Polymeric materials are being increasingly used as engineering materials. In some polymers, the appearance of opaque areas is observed due to processing or mechanical stress. The appearance of these opaque regions is known as stress whitening. This study was intended to characterize qualitatively …