Methods of forming abrasive articles

US9744646B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9744646-B2
Application numberUS-201514859728-A
CountryUS
Kind codeB2
Filing dateSep 21, 2015
Priority dateJul 27, 2009
Publication dateAug 29, 2017
Grant dateAug 29, 2017

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Abstract

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An abrasive article, comprising a polycrystalline material comprising abrasive grains and a filler material having an average negative coefficient of thermal expansion (CTE) within a range of temperatures between about 70 K to about 1500 K. A method of forming an abrasive article, comprising preparing an abrasive material, preparing a filler material having an average negative coefficient of thermal expansion (CTE) within a range of temperatures between about 150 K to about 1500 K, and forming a polycrystalline material comprising grains of the abrasive material and the filler material.

First claim

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What is claimed is: 1. An abrasive article, comprising: a polycrystalline material comprising abrasive grains separated by grain boundaries, wherein the grain boundaries comprise a filler material having an average negative coefficient of thermal expansion (CTE) within a range of temperatures between about 70 K to about 1500 K, wherein the filler comprises at least one material selected from the group consisting of a tungstate, a molybdate, and a vanadate. 2.…

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What does patent US9744646B2 cover?
An abrasive article, comprising a polycrystalline material comprising abrasive grains and a filler material having an average negative coefficient of thermal expansion (CTE) within a range of temperatures between about 70 K to about 1500 K. A method of forming an abrasive article, comprising preparing an abrasive material, preparing a filler material having an average negative coefficient of th…
Who is the assignee on this patent?
Baker Hughes Inc
What technology area does this patent fall under?
Primary CPC classification E21B10/567. Mapped technology areas include Fixed Constructions.
When was this patent published?
Publication date Tue Aug 29 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).