To prepare a self-lubricating ceramic tool with excellent mechanical properties and crack healing ability, the [email protected]2O3 solid lubricant core-shell structure was prepared by heterogeneous nucleation method, added into Al2O3/TiC matrix together TiB2. Examination of micro-morphology phase composition found that surface h-BN coated Al(OH)3 at first, after calcination 1200 °C, dense unif...