| abstract |
A method of making abrasive particles comprising the following steps: i. Providing a starting mixture which contains at least aluminum hydroxide and which can be converted into at least aluminum oxide by heat treatment, ii. Extrusion of the starting mixture into an extrudate, iii. Separating the extrudate into intermediate particles, and iv. Heat treatment of the intermediate particles, the intermediate particles being converted into abrasive particles which contain aluminum oxide, the extrudate and / or the intermediate particles being subjected to an energy input which is asymmetrical with respect to the geometry of the extrudate and / or the intermediate particles. |