Title :
PTCa/PEEK composite acoustic emission sensors
Author :
Sakamoto, Walter K. ; Malmonge, José A. ; Malmonge, Luiz F. ; Silva, Alberto F G da ; Higuti, Ricardo T.
Author_Institution :
Dept. de Fisica e Quimica, Univ. Estadual Paulista, Ilha Solteira
Abstract :
Composites made of calcium-modified lead titanate (PTCa) and poly (ether-ether-ketone) (PEEK) high performance polymer matrix were prepared in the film form using a hot press. The ceramic volume fraction reaches up to 60 percent providing a composite with 0-3 and 1-3 mixed connectivities due to the high ceramic content and the resulting materials could be considered PEEK-bonded PTCa particulate composite. The composites were characterized using piezoelectric spectroscopy and ultrasonic immersion techniques. Values up to 38.5 pC/N were obtained for the longitudinal d33 piezoelectric coefficient. The composite was surface-mounted on a carbon fiber plate-like specimen and the ability of the PTCa/PEEK composite to detect acoustic emission (AE) is reported
Keywords :
acoustic emission; calcium; ferroelectric ceramics; ferroelectric thin films; lead compounds; piezoceramics; piezoelectric thin films; piezoelectric transducers; piezoelectricity; polymer films; sensors; AE; PEEK-bonded PTCa particulate composite; PTCa-PEEK composite acoustic emission sensors; calcium-modified lead titanate; carbon fiber plate-like specimen; ceramic volume fraction; high performance polymer matrix; hot press; longitudinal d33 piezoelectric coefficient; piezoelectric spectroscopy; poly (ether-ether-ketone); thin film form; ultrasonic immersion techniques; Acoustic emission; Acoustic sensors; Acoustic signal detection; Carbon dioxide; Ceramics; Composite materials; Piezoelectric films; Polymer films; Spectroscopy; Titanium compounds;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TDEI.2006.247847
