Corundum ceramics based on aluminum oxide obtained by a plasma chemical method

Problems of sintering aluminum oxide consisting of highly disperse α-Al₂O₃ prepared by the plasma chemical method are considered. It is shown that this material possesses high sinterability even in the case of considerable pressing pressures. The introduction of MgO improves sintering of plasma chemical aluminum oxide and the addition of partially stabilized zirconia increases the ultimate strength of the ceramics in three-point bending to 450 MPa.