PENGARUH PENAMBAHAN FRIT GELAS TERHADAP KARAKTERISTIKDIELEKTRIK KAPASITOR KERAMIK FILM TEBAL BATIO3

Abstract

Thick film dielectric ceramic capacitors have been manufacture with an additive mixture ofBaTiO3 95 % : 5 % , 92.5 % : 7.5 % and 90 % : 10 % regarding the frits glass weight. Themixedsamples to the forms of pasta by adding 20%organic compounds heaviness. Formedpasta from the three types of samples sintered at a temperature of 700 C for 20 minutes.Then the characteristics of the sample by using XRD, SEM and LCR metersis done. XRDresults identified that all three types of samples formed BaTiO3 phase with a tetragonalcrystal structure that the length of the crystal grid is a = b ≠ c and angles α = β = γ . Theresults of SEM analysis showed BaTiO3 thick film microstructure changes by indicated theincrease in grain. Dielectric characteristics by measuring the capacitance of a capacitor attemperature of 30C - 100C. The results turned be a thick film capacitors with 5% fritcomposition has a dielectric constant of 230.75, 7.5% frit composition has a dielectricconstant of 39.58% and 10% frit composition has dielectric constant of 293.87% attemperature of 100C. These three dielectric constantvalues indicated 10% frit composition isthe highest dielectric constant of the capacitor and is the best of the three types of capacitor .