Fabrication and Mechanical Properties of Sintered Leucite Body

for leucite using natural minera} potash feldspar as the major raw material, followed by bal) milling. A sintered leucite body with a 99.0% re)atiye density was obtained by heating the leucite powder cylindrical pellet at 12500C for 1 h. The mechanical properties of this dense teucite body were determined. The bending strength, fracture toughness, e)astic modulus and Vickers hardness of the body were 173 MPa, 2.3 MPa-mit2, 63 GPa and 5.3 GPa, respectiyely. [Received January 31, 2005; Accepted May 19, 2005]