Study the mechanical properties of Barium Titanate (BaTiO3) Nanopowder doping with silicon dioxide (SiO2)

Document Type : Research Paper


1 Material branch, applied science department, university of technology, Baghdad, Iraq

2 Materials engineering department, university of technology, Baghdad, Iraq


The perovskite structure is supported by a number of oxides with the chemical formula (ABO3). Barium Titanite (BaTiO3) return to perovskite family . this structure came from CaTiO3.A primitive cube is the general crystal structure with the larger A cation in the corner, the smaller B cation in the middle of the cube and the anion commonly. Oxygen is in the center of the edges of the face where A is a monovalent, or trivalent mineral, and B is a pentavalent, tetravalent or trivalent element. Barium Titanate (BaTiO3) fine nanopowder was doped with silicon dioxide (SiO2) with different ratio (1, 1.5, 2, 2.5) wt % using the weight ratio. subsequently sintering at various temperatures (1000-1300) ◦C with a temperature increase rate of (8-9◦C / 1min) , and Mechanical properties are being studied for the pure and doped mixture. It was observed that the addition of SiO2 on BaTiO3 influence on mechanical properties, The addition of SiO2 increases the result of the compressive strength (at all different times of application), which means that this doped ceramic's ability to maintain higher compressive strength is more than pure ceramic BaTiO3.