Open AccessMicrostructure, Morphology, and Dielectric Properties of Ba1-xLaxTiO3 with Variation Mole Concentration of Lanthanum by Co-Precipitation Method
Author(s) -
Uli Ulfa,
Yofentina Iriani,
Kusumandari Kusumandari
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1096/1/012138
Subject(s) - crystallite , dielectric , materials science , analytical chemistry (journal) , microstructure , crystallinity , lanthanum , sintering , scanning electron microscope , grain size , precipitation , mineralogy , chemistry , composite material , metallurgy , inorganic chemistry , chromatography , physics , optoelectronics , meteorology
This study aims to determine the microstructure, morphology, and dielectric properties of Ba 1-x La x TiO 3 modified with variations moles concentration of 10% and 15% Lanthanum at sintering temperatures of 1300°C and 1400°C for 4 hours. Ba 1-x La x TiO 3 was synthesized using the co-precipitation method. The results of characterization using X-Ray Diffraction (XRD) showed that the greater concentration of La mole caused a diffraction angle shift to the right. The crystallite size decrease asthe increasing concentration of La mole and sintering temperature. The smallest crystallite size (36.63 nm) belong to a sample of Ba 0,85 La 0,15 TiO 3 sintered at 1400°C. The intensity and the crystallinity decreased with increasing concentration of La mole. Scanning Electron Microscopy (SEM) photographs showed that grain size got smaller with increasing La mole concentration. The dielectric constant obtained from the results of characterization using a Resistance Inductance Capacitance meter (RLC meter) showed that the higher the concentration of La mole added, the greater the dielectric constant produced. The highest dielectric constant was 414 belonged to the sample Ba 0,85 La 0,15 TiO 3 sintered at 1400°C.