Abrasive surfaced article for high temperature service

Details Abrasive surfaced article for high temperature service Abrasive surfaced article for high temperature service

F - Mech Eng,Light,Heat,Weapons

01

D

170/84

F01D 5/28 (2006.01) C23C 4/18 (2006.01) F01D 5/20 (2006.01)

Patent

CA 1237990

Abrasive Surfaced Article for High Temperature Service Abstract A very thin abrasive material on a substrate is comprised of ceramic particulates contained within a metal matrix. The particulates extend fully through the matrix from the substrate surface to the machined free surface of the abrasive. In a representative 0.38 mm abrasive the particulates are sized nominally at 0.42-0.50 mm and have an aspect ratio of less than 1.9 to 1. This enables a high density of particulates, in the range 33-62 per cm2, while at the same time ensuring good bonding in that most of the particulates are fully surrounded by matrix. When the abrasive is applied to the tip of a superalloy gas turbine engine blade, about 10-50% of the matrix metal is removed after machining. This allows the machined ceramic particulates to project into space and to thus better interact with ceramic abradable seals. In the preferred practice of the invention the particulates are alumina coated silicon carbide contained in a nickel superalloy matrix.

483221

Affiliated with

Also associated with

Rating

Abrasive surfaced article for high temperature service does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Abrasive surfaced article for high temperature service, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abrasive surfaced article for high temperature service will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1306188