EngLib USM > Ω Monograph (FRGS) >

Grain growth control mechanism of lead zirconate titanate electroceramic by doping la3+ and sr2 /Prof. Madya Dr. Hasmaliza Mohamad

Grain growth control mechanism of lead zirconate titanate electroceramic by doping la3+ and sr2

Abstract Addition of calcium ion in La and Sr co-doped lead zirconate titanate (PLSZT) was investigated to improve the dielectric and piezoelectric properties of PLSZT system. Ca­ doped PLSZT was prepared using high energy planetary ball mill, pelletized and sintered at 1200 °C for 3 hours. XRD results showed that all Ca-doped PLSZT samples present perovskite structure with tetragonal phase. FESEM results showed that the grain size of the samples was decreased with increasing calcium composition but began to enlarge at 0.008 mol% of calcium. The density was observed to be slightly decreased as addition of calcium ion. The dielectric permittivity (Er) and piezoelectric coefficient (d33) and electromechanical coupling factor (kp) were increased with the composition of calcium up to 0.005 mol%.

Contributor(s): Prof. Madya Dr. Hasmaliza Mohamad - Author Language: English Subject Keywords: zirconate titanate; calcium ion ; piezoelectric First presented to the public: 3/4/2019 Original Publication Date: 6/12/2019 Previously Published By: Universiti Sains Malaysia Place Of Publication: School of Materials & Mineral Resources Engineering Citation: Extents: Number of Pages - 16 License Grantor / Date Granted:   / ( View License ) Date Deposited 2019-03-22 15:52:12.747 Date Last Updated 2019-07-23 15:57:51.331 Submitter: Nor Hayati Ismail

All Versions

• Help | 
• About | 
• Privacy Policy