Herein, the fabrication of metal bond diamond tools is proposed by using the Fe₂O₃-Al aluminothermic reaction. Moreover, the influence of sintering temperature and TiH₂- and Si-doping on phase composition and mechanical properties of the reactive sintered bond is investigated. Furthermore, the grinding performance of metal bond diamond tool on ceramic tile is also examined. At 930 °C, the sintered bond is composed of Fe, Al₂O₃, Fe₃O₄ and FeO phases. However, the aluminothermic reaction initiated at 1028.8 °C and resulted in the formation of FeAl₂O₄ and Fe₃Al phases. Moreover, the content of Al₂O₃, Fe₃Al, α-Fe and FeAl₂O₄ phases increased with the increase of sintering temperature. The maximum flexural strength, hardness and relative density are achieved when sintering at 1230 °C. In addition, the dehydrogenation of TiH₂ can impede the formation of FeAl₂O₄ phases and improve the flexural strength, hardness and relative density of the bond. Also, the Si-doping into Fe₂O₃-Al aluminothermic reaction system resulted in Fe₂Al₃Si₃ phase and reduced the content of Al₂O₃ and Fe₃Al phases, leading to higher flexural strength, lower hardness and inferior relative density. In wet grinding, the as-prepared metal bond diamond tool can be used to grind ceramic tiles with lower grinding force and better surface quality than the dry grinding. However, the as-prepared metal bond diamond tool rendered low wear resistance due to the brittle nature of the metal bond.

这里，提出了通过使用Fe ₂ O ₃ -Al铝热反应的金属结合金刚石工具的制造。此外，研究了烧结温度，TiH _2-和Si掺杂对反应性烧结键合相组成和力学性能的影响。此外，还检查了金属结合剂金刚石工具在瓷砖上的研磨性能。在930°C下，烧结键由Fe，Al ₂ O ₃，Fe ₃ O ₄和FeO相组成。但是，铝热反应在1028.8°C时开始，导致形成FeAl ₂ O ₄和Fe ₃铝相。此外，随着烧结温度的升高，Al ₂ O ₃，Fe ₃ Al，α -Fe和FeAl ₂ O ₄的含量增加。在1230°C下烧结时，可获得最大的弯曲强度，硬度和相对密度。另外，TiH ₂的脱氢可阻止FeAl ₂ O ₄相的形成，并提高键的抗弯强度，硬度和相对密度。而且，将Si掺杂到Fe ₂ O ₃ -Al铝热反应系统中产生了Fe ₂ Al ₃ Si _3。降低了Al ₂ O ₃和Fe ₃ Al相的含量，导致较高的抗弯强度，较低的硬度和相对较低的相对密度。在湿法研磨中，所制备的金属结合剂金刚石工具可用于研磨比干法研磨具有更低研磨力和更好表面质量的瓷砖。但是，由于金属结合剂的脆性，所制备的金属结合剂金刚石工具的耐磨性低。