Pengaruh Suhu Sintering Pada Pembuatan Strontium Titanat (SrTiO3) Terhadap Konstanta Dielektrik Menggunakan Metode Co-Precipitation

Abstract

<p>Strontium Titanate (SrTiO<sub>3</sub>) with variation of sintering temperatures were prepared by co-precipitation methods. Sintering temperature were varied at 700<sup>o</sup>C, 800<sup>o</sup>C, and 900<sup>o</sup>C for 4 hours. SrTiO<sub>3</sub> samples were prepared by Strontium Nitrate and Titanium Tetrabutoxide. SrTiO<sub>3</sub> samples were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Resistance Capacitance Inductance (RCL) meter, and Sawyer Tower. SEM images show that the sintering temperatures could affect the grain size of SrTiO<sub>3</sub>. In addition, crystal size of SrTiO<sub>3</sub> (110) affected by sintering temperature. The highest of dielectric constant is 137 on SrTiO<sub>3</sub> at sintering temperature of 900<sup>o</sup>C. Sawyer Tower curves confirmed that SrTiO3 has paraelectric property.</p><p>Keyword: Strontium Titanate, Co-precipitation, dielectrics constant, paraelectrics</p><p> </p>