Experimental results show that there are ductile removal and brittleness removal simultaneously, and the model can analyze qualitatively the material removal ratio in dual-lapping of sapphire.

• 结果表明，蓝宝石双面研磨中同时存在延性去除和脆性去除，该模型可以定性地描述双面研磨加工材料的去除率。