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Composite bodies and methods of forming the same

A composite and composition technology, applied in the field of composites, can solve problems such as limited performance characteristics

Active Publication Date: 2016-10-12
SAINT GOBAIN ABRASIVES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance characteristics of conventional bonded abrasives with clay frits are limited by the nature of the bond, the composition of the abrasive grains, and the presence and composition of material around the pores within the bond

Method used

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  • Composite bodies and methods of forming the same
  • Composite bodies and methods of forming the same
  • Composite bodies and methods of forming the same

Examples

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example

[0243] Figure 4A , 4B and 5 show the difference in appearance between the porogen in a conventional composite and a composite including a porogen as shown in the Examples described herein.

[0244] Figure 4A and 4B Composite body 400 is shown having bond material 403 , pores 404 within bond material, and hole-defining regions 406 of bond material 403 around holes 404 . The pore-defining region 406 shows the remnants of the porogen, which was combined with the bonding material in the mixture during the forming process. Such as Figure 4A As shown in , the pore-defining region 406 of the conventional composite does not maintain the delimitation of the porogen's original shape; instead, the pore-defining region is incorporated into the bonding material 403 .

[0245] For comparison, Figure 5 Composite 500 is shown having bond material 503 , a hole 504 within bond material 503 , and a hole-defining region 506 of bond material 503 around hole 504 . The pore-defining regio...

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Abstract

A composite body is provided that can include abrasive grains and at least one pore within a bond matrix, the abrasive grains including cubic boron nitride (cBN) and the bond matrix including a polycrystalline ceramic phase. The bonded abrasive may have a Modulus of Rupture (MOR) of not less than about 40 MPa. Certain embodiments may have porosity, such as, greater than about 5.0 vol %.

Description

technical field [0001] The present disclosure relates to composite bodies, and in particular to composite bodies comprising bonded material and pores within the bonded material. Background technique [0002] Abrasives are commonly used in a variety of mechanical operations ranging from fine polishing to bulk material removal and cutting. For example, free abrasives consisting of loose particles are used in slurries for polishing applications such as chemical mechanical polishing (CMP) in the semiconductor industry. Alternatively, abrasives may be in the form of fixed abrasive articles such as bonded abrasives and coated abrasives, which may include devices such as grinding wheels, belts, rollers, discs, and the like. [0003] Fixed abrasives generally differ from free abrasives in that fixed abrasives utilize abrasive grains or grit within a material matrix that fixes the position of the abrasive grains relative to each other. Common fixed abrasive grits may include alumin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/00B24D3/18
CPCB24D3/18
Inventor S·里贝特T·J·特舍林C·宙丝优姆
Owner SAINT GOBAIN ABRASIVES INC
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