进入60年代以来,由于在工业中愈来愈多地采用高硬度、高强度和耐高溫的金属来制造零件,使得即使采用优質的高速鋼和硬質合金刀具来切削它們,也变得很困难,生产率很低。刀具材料的研究人員,正在寻求新一代的刀具材料,以使之在更高的切削速度下切削和更加耐磨。新型Al_2O_3复合陶瓷就是重要 Since the 1960s, the increasing use of high-hardness, high-strength, and high-temperature metals in the industry to make parts has made it difficult to cut even high-quality high-speed steel and carbide cutting tools, Productivity is low. Researchers at tooling materials are looking for a new generation of tooling material that will cut and wear at higher cutting speeds. The new Al 2 O 3 ceramic composite is important