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| |  | ||   / _ \\  | || | ||   / _ \\      ___   
| |/\| ||  | / \ || | '--' ||  / //\ \\    /   || 
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Text this: Physical and mechanical properties of Bi<inf>0.5</inf>(Na<inf>0.81</inf>K<inf>0.19</inf>)<inf>0.5</inf>TiO<inf>3</inf> ceramic modified by KNbO<inf>3</inf>