Al2O3-hBN self-lubricating ceramic composites are fabricated by hot-press at 1 700℃.The relationships of the microstructure with the content of hBN,the sintering conditions and the fluxes are investigated.The XRD and SEM analyses show when 10% or more hBN lubricatives are added they can scatter uniformly in the matrix,in addition,hot pressing technique can make the microstructure perfectly dense because the card-house structure of hBN is destroyed and the orientation arrangement of hBN is improved with the ...