Effect of carbon black on properties of 0–3 piezoelectric ceramic/cement composites
Year: 2009
Type: article
Abstract: 0–3 cement-based piezoelectric composites were fabricated using sulphoaluminate cement and piezoelectric ceramic [0.08Pb(Li 1/4 Nb 3/4 )O 3 · 0.47PbTiO 3 · 0.45PbZrO 3 ] [P(LN)ZT] as raw materials by compressing technique. The influences of carbon black content on the piezoelectric and dielectric properties , electric conductivity and impedance were investigated. The results indicate that the piezoelectric strain constant d 33 and piezoelectric voltage constant g 33 of the composites increase gradually with a suitable carbon black addition. When the carbon black content is 0.3 wt%, both of the piezoelectric strain constant d 33 and piezoelectric voltage constant g 33 of the composite exist the maximum value, which are 17.45 pC N −1 and 36.3 mV m N −1 , respectively. As the carbon black content increases, the dielectric constant ε r , dielectric loss tan δ and electric conductivity σ of the composites all increase, while the impedance decreases. In the frequency range tested, the more the carbon black content, the higher the ε r value. The planar electromechanical coupling coefficient K p , the thickness electromechanical coupling coefficient K t and the mechanical quality factor Q m are almost unaffected by the carbon black content.
Source: Current Applied Physics
Institution: University of Jinan
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,640
OpenAlex ID: W2000670498