Rapid CO2 laser sintering of Ba0.5Sr 1.5Na0.6K0.4Nb5O15 piezoelectric ceramic - Details

Author：

Du, Xinyu (Du, Xinyu.) | Ji, Lingfei (Ji, Lingfei.) (Scholars：季凌飞) | Jiang, Yijian (Jiang, Yijian.) (Scholars：蒋毅坚)

Indexed by：

EI Scopus

Abstract：

Dense　tungsten　bronze　Ba0.5Sr1.5Na　0.6K0.4Nb5O15　[(BSKNN)　x=1.5,　y=0.4]　piezoelectric　ceramic　is　produced　by　CO2　laser　sintering　method　of　9　minute　duration.　The　observed　XRD　spectra　indicate　that　both　laser　sintered　and　furnace　sintered　ceramic　are　of　crystallized　tungsten　bronze　structure.　Microstructure　examination　of　both　laser　and　furnace　sintered　ceramics　show　the　former　have　smaller　grain　size,　fewer　pores　and　a　greater　density　of　4.87　g/cm3.　The　laser　sintered　Ba0.5Sr1.5Na　0.6K0.4Nb5O15　[(BSKNN)　x=1.5,　y=0.4]　ceramic　demonstrate　piezoelectric　properties　for;　maximum　reached　polarization　and　remnant　polarization,　Pm=8.27　μC/cm2　and　P　r=3.25　μC/cm2,　coercive　field　of　Ec=7.01　kV/cm.　The　piezoelectric　constant　d33=55　pC/N.

Keyword：

Sintering Piezoelectricity Strontium compounds Barium compounds Bronze Piezoelectric ceramics Niobium compounds Tungsten Ceramic materials Carbon dioxide lasers Sodium compounds Polarization Laser heating Carbon dioxide

Author Community：

[ 1 ] [Du, Xinyu]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Ji, Lingfei]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China
[ 3 ] [Jiang, Yijian]Institute of Laser Engineering, Beijing University of Technology, Beijing, 100124, China