Saint-Gobain Abrasives, Inc.

Saint-Gobain Abrasifs

Saint-Gobain Abrasives Technology Company

University of Massachusetts

Anne M Bonner

Dean S Matsumoto

Eric Bright

Edward L Lambert

Muthu Jeevanantham

Michael W Klett

Konstantin S Zuyev

Emmanuel C Francois

Brahmanandam V Tanikella

Mark W Simon

Darrell K Everts

David A Sheldon

Andrew B Schoch

Shaw Ling Hsu

Hua Fan

Anthony Martone

Xavier Orlhac

Jigneshkumar P Patel

Caixia Zhao

Bruce E Vigeant

Alexander Nashed

Subrajeet Deshmukh

Sena Ada Carleen

Leslie Dos Santos

Marc Yonger

Subramanian Ramalingam

Aldric Barbier

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%.

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

An abrasive article may include an organic bond material, abrasive particles contained within the organic bond material and a plasticizer contained within the organic bond material. The plasticizer may include at least one of an aromatic phenyl group, a heteroaromatic furyl group, or a saturated aliphatic hydrocarbon. The plasticizer may further include a polar group.

Abrasive articles and methods of forming the same

An abrasive tool can have a body including an abrasive portion with abrasive grains contained within a matrix material. A first reinforcing member can be contained within the body. The body can also include a porosity variation difference through at least half of a thickness of the body of not greater than 250% from a mean porosity of the body.

Abrasive tool having a particular porosity variation

An abrasive tool having a body including an abrasive portion having abrasive grains contained within a matrix material and porosity characterized by a bimodal distribution of pores including large pores having an average large pore size (P) and small pores having an average small pore size (P), wherein P&#x3e;P. The body of the abrasive tool further includes a first reinforcing member contained within the abrasive portion, and a percent thermal expansion over a temperature range for 25&#xb0; C. to 450&#xb0; C. of not greater than about 0.7%.

Abrasive tool having controlled porosity distribution

Bonded abrasive tools, having novel porous structures that are permeable to fluid flow, comprise a relatively low volume percentage of abrasive grain and bond, and a relatively low hardness grade, but are characterized by excellent mechanical strength and grinding performance. Methods for making the abrasive tools utilizing agglomerated abrasive grain are described.

Abrasive articles with novel structures and methods for grinding

Organic bonded abrasive tools, having controlled microstructures, comprise a relatively low volume percentage of abrasive grain and a relatively low hardness grade, but are characterized by the excellent mechanical strength and efficient grinding performance of much harder grade, lower porosity tools, especially in versatile grinding processes, such as centerless grinding. A method for centerless grinding with these tools is provided. Methods for making the abrasive tools utilizing agglomerated abrasive grain are described.

Method of centerless grinding

Grinding of mill rolls is carried out with chatter resistant abrasive grinding wheels having relatively low elastic modulus values and relatively high burst speed values. Grinding operations may be carried out at high efficiency with controlled wheel vibration, thus generating optimum surface quality on the ground mill rolls.

Method of roll grinding

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Nashua, NH, United States of America

Anne M Bonner