Invention Grant
- Patent Title: Ceramic abradable material with alumina dopant
- Patent Title (中): 陶瓷耐磨材料与氧化铝掺杂剂
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Application No.: US11453874Application Date: 2006-06-16
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Publication No.: US07736760B2Publication Date: 2010-06-15
- Inventor: Andrew R. Nicoll , Scott Wilson
- Applicant: Andrew R. Nicoll , Scott Wilson
- Applicant Address: US NY Westbury
- Assignee: Sulzer Metco (US), Inc.
- Current Assignee: Sulzer Metco (US), Inc.
- Current Assignee Address: US NY Westbury
- Agency: Greenblum & Bernstein, P.L.C.
- Main IPC: B32B9/00
- IPC: B32B9/00 ; F04D29/08

Abstract:
A ceramic abradable material is provided for use for clearance control between turbine blade tips and the shroud or casing in gas turbine engines for industrial and/or aerospace applications. The ceramic abradable material includes an yttria stabilized zirconia (YSZ) that is doped in alumina (Al2O3). The ceramic abradable in accordance with the invention is a soft abradable material that provides for increased erosion resistance as well as the ability of the turbine blade tips to cut into the abradable without causing them damage. These properties allow for optimum tolerances within the gas turbine engine which results in superior efficiency and performance.
Public/Granted literature
- US20060285972A1 Ceramic abradable material with alumina dopant Public/Granted day:2006-12-21
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