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US 11,697,752 B2Granted
Shaped ceramic abrasive particle and method for producing a shaped ceramic abrasive particle
AssigneeRobert Bosch GmbH
InventorsJiri Misak, Moritz Oldenkotte, Stefan Fuenfschilling
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Abstract
A shaped ceramic abrasive particle, in particular on the basis of alpha-Al2O3, includes at least three faces, at least two faces of which form a common vertex on which at least one corner common to the three faces lies. The abrasive particle has at least one structural weakening element. The disclosure also relates to an abrasive article including the abrasive particles, and a method for producing the abrasive particles.
Claims19
A shaped ceramic abrasive particle comprising:
- at least three faces, of which at least two faces form a common edge on which at least one corner common to the at least three faces is located;
- and
- at least one structure-weakening element comprising a closed recess defined in the shaped ceramic abrasive particle, the closed recess having a substantially convexly curved shape,
- wherein the closed recess is formed as a void, a bubble, or a pore defined in the material of the abrasive particle,
- wherein the closed recess has a spherical, ball-like shape, and
- wherein the spherical, ball like shape has a radius of curvature of from 10 μm to 200 μm.
3 more elements
A shaped ceramic abrasive particle comprising:
- at least three faces, of which at least two faces form a common edge on which at least one corner common to the at least three faces is located;
- and
- at least one structure-weakening element comprising a closed recess defined in the shaped ceramic abrasive particle, the closed recess having a substantially convexly curved shape,
- wherein the essentially convexly curved shape has a radius of curvature of from 10 μm to 200 μm.
1 more element
A shaped ceramic abrasive particle comprising:
- at least three faces, of which at least two faces form a common edge on which at least one corner common to the at least three faces is located;
- and
- at least one structure-weakening element comprising a closed recess defined in the shaped ceramic abrasive particle, the closed recess having a substantially convexly curved shape,
- wherein the at least one structure-weakening element further comprises at least one of a material projection and a material overhang at the at least one edge and/or at the at least one corner of the abrasive particle.
1 more element
Dependencies are inferred from the claim text.