| 摘要 |
A method for evaluating abrasive grains used in a slurry for cutting ingots, wherein there are performed an evaluation-solution-preparation step (S1) for causing abrasive grains containing polishing abrasive grains and impurities to dissolve in a solvent to prepare an evaluation solution, a settling step (S3) in which a vessel containing the evaluation solution is left to stand and the polishing abrasive grains are allowed to settle, a measurement step (S5) for measuring the turbidity of the supernatant of the evaluation solution using a measuring device, and an estimation step (S6) for estimating the impurity content on the basis of the results obtained from measuring the turbidity of the supernatant. |
