Sintesis Barium Heksaferrit Tipe W Melalui Metode Mechanical alloying

Abstract

W-type Barium hexaferrite with a crystal structure BaMe₂Fe₁₆O₂₇ (Me is a divalent metal) has a good magnetic properties and high value of currie temperature. Ion substitution on W-type Barium Hexaferrite can be improve the properties of W-type Barium Hexaferrite. For this research, substitution Fe by ion Co and Ti with x = 0 and 0.1 by mechanical alloying method will be performed. Mixing of basic materials BaCO₃, Fe₂O₃, Co₃O₄, and TiO₂ by milling process using high energy ball mill in a wet milling condition using toluene for 1 hour followed with calcination and sintering. Then Crystal structure in the sample will be analyzed using XRD (X-Ray Diffraction) with CuKα radiation. The calculation of the phase BaCoTiFe₁₆O₂₇ (x = 0) obtained values of lattice parameters a=b= 5.886 Ã… dan c= 23.236 Ã…, while the phase BaCoTiFe_15.8Co_0.1Ti_0.1O₂₇ (x = 0.1) obtained values of lattice parameters a=b= 5.894 Ã… dan c= 23.257 Ã….

Keywords: W-type Barium Hexaferrite, Mechanical Alloying, X-Ray Diffraction, Lattice Parameter,

Grain Size, Volume Unit Cell.