Abrasive particle including coating, abrasive article including the abrasive particles, and method of forming

US11685849B2 · kind B2 · utility

Assignees

• SAINT-GOBAIN ABRASIVES, INC. · US
• SAINT-GOBAIN ABRASIFS · FR

Inventors

• Marc YONGER · Paris, FR
• Leslie DOS SANTOS · Paris, FR
• Anne M. Bonner · Hudson, US
• Mark W. Simon · Pascoag, US
• Subramanian Ramalingam · Shrewsbury, US
• Anthony F. Martone · Ellicott City, US
• Hua Fan · Troy, US
• Darrell K. Everts · Malta, US
• Brahmanandam V. Tanikella · Northborough, US
• Aldric BARBIER · La Fortelle, FR

Key dates

• Filing date: Oct 9, 2020
• Grant date: Jun 27, 2023
• Expiry date: Oct 9, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/5445
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An abrasive particle can include a coating overlying at least a portion of a core. In an embodiment, the coating can include a first portion overlying at least a portion of the core and a second portion overlying at least a portion of the core, wherein the first portion can include a ceramic material and the second portion can include a silane or a silane reaction product. In a particular embodiment, the first portion can consist essentially of silica. In another particular embodiment, the first portion can include a surface roughness of not greater than 5 nm and a crystalline content of not greater than 60%.