Pengaruh Variasi Suhu Sintering Pada Pembuatan Strontium Titanat Menggunakan MEtode Co-Precipitation Terhadap Struktur Mikro dan Sifat Dielektrik

Strontium Titanate (SrTiO3) with variation of sintering temperatureswere prepared by co-precipitation methods. Sintering temperature werevaried at 700oC, 800oC, and 900oC for 4 hours. SrTiO3samples were prepared by Strontium Nitrate and Titanium Tetrabutoxide. SrTiO3sampleswere 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 SrTiO3. In addition, crystal size of SrTiO3 (1 1 0) affected by sintering temperature. The highest of dielectric constant is 137 on SrTiO3at sintering temperature of 900oC. Sawyer Tower curves confirmed that SrTiO3 has paraelectric property. Keywords: Strontium Titanate, Co-precipitation, dielectrics constant,paraelectric