公开(公告)号：US20150159507A1

公开(公告)日：2015-06-11

申请号：US14098864

申请日：2013-12-06

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Shankar Sivaramakrishnan ,  Lauraine Denault ,  Larry Steven Rosenzweig

IPC: F01D25/00

CPC classification number: F01D5/288 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C23C4/02 ,  C23C4/11 ,  C23C4/134 ,  C23C28/3215 ,  C23C28/3455 ,  Y02T50/672 ,  Y02T50/6765 ,  Y10T428/12361 ,  Y10T428/24314 ,  C04B35/565 ,  C04B35/806 ,  C04B41/5071 ,  C04B41/5096 ,  C04B41/522 ,  C04B41/5024 ,  C04B41/4582 ,  C04B2103/0021

Abstract: Articles for high temperature service, especially where enhanced strain tolerance coupled with resistance to ingested dust and debris (CMAS) is desirable, are provided herein. The article comprises a substrate and a multi-layered coating system disposed over the substrate. The coating system comprises a first layer comprising a first material and a second layer comprising a second material, with the first layer disposed between the second layer and the substrate. The second material is more resistant to infiltration by a nominal CMAS composition relative to 8 weight percent yttria-stabilized zirconia at a temperature of 1300 degrees Celsius. The second layer comprises a plurality of through-thickness cracks, wherein at least 90 percent of the cracks have a mean crack opening displacement, measured in a distal surface region, of up to about 5 micrometers.

Abstract translation: 具有耐高温性能的产品，特别是在增加耐应变性以及耐吸收性粉尘和碎屑（CMAS）的情况下，本文提供了这些。 该制品包括基底和设置在基底上的多层涂层系统。 该涂层系统包括包含第一材料的第一层和包含第二材料的第二层，其中第一层设置在第二层和衬底之间。 在1300摄氏度的温度下，第二种材料相对于8重量％的氧化钇稳定的氧化锆，更能抵抗标称CMAS组合物的渗透。 第二层包括多个贯穿厚度的裂缝，其中至少90％的裂纹具有高达约5微米的在远端表面区域中测得的平均裂纹开口位移。