In orde to improve the ability of high temperature anti-oxidation,high-temperature oxidation resistant ceramic coating on Ni-alloy surface was prepared at 1300 ℃,using Cr2O3 and cementing phase as the starting material.The experimental results indicate that the dense enamel coating has an excellent thermal shock resistance properties owing to chemical bonding at the interface.The oxidation tests at 1100 ℃ in air for 100 h show that the ceramic coating is an effective anti-oxidation coating at high temperatu...