POLISHING METHOD AND COMPOSITION FOR POLISHING

摘要

Provided is a method for polishing a material that has a Vickers hardness of 1,500 Hv or more. This polishing method comprises: a step for performing preliminary polishing with use of a composition for preliminary polishing, which contains abrasive grains APRE; and a step for performing finish polishing with use of a composition for finish polishing, which contains abrasive grains AFIN that have a lower hardness than the abrasive grains APRE.