The mixed oxide or solid state route

This route is the solid state reaction at temperatures above 1100 °C of a mixture of BaC03 and Ti02 - together with modifiers . The calcination is followed by comminution to reduce the particle size to approximately 1 /an. 

Although the route is still widely used for commercial scale production, as the demands for modified powders having precisely controlled physical and chemical characteristics intensifies, so there will be a progressive move away from the mixed oxide toward the chemical routes. 

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