公开(公告)号：US5104293A

公开(公告)日：1992-04-14

申请号：US553057

申请日：1990-07-16

申请人： Harry E. Eaton, Jr. ,  Matthew J. Wallace

发明人： Harry E. Eaton, Jr. ,  Matthew J. Wallace

IPC分类号： C23C4/04 ,  C23C4/06 ,  F01D5/28 ,  F01D11/08

CPC分类号： C23C4/06 ,  Y02T50/67 ,  Y10T29/49336 ,  Y10T29/49982 ,  Y10T29/49986

摘要： This invention relates to abrasive layers for use in the gas turbine industry. The preferred embodiment of the invention comprises nickel coated, yttria doped silicon nitride particulates dispersed within a nickel base superalloy matrix which is substantially free of oxides. The layer is formed using low pressure plasma spray processes.

公开(公告)号：US4289446A

公开(公告)日：1981-09-15

申请号：US52634

申请日：1979-06-27

申请人： Matthew J. Wallace

发明人： Matthew J. Wallace

IPC分类号： F01D11/08 ,  F01D5/20 ,  F01D11/12 ,  F28D19/00

CPC分类号： F01D11/122 ,  Y10S277/943

摘要： A durable, outer air seal structure capable of long term, reliable service in a gas turbine engine environment is disclosed. Various construction details which enable the incorporation of high temperature tolerant ceramic materials into the outer air seal structure are developed. The structure is built around a porous, low modulus pad of metallic material which is disposed between the ceramic material and a substrate of solid metallic material. The ceramic material is applied to a preferred density at which the physical properties of modulus of elasticity (E), mean tensile strength (T), coefficient of thermal expansion (.alpha.) and thermal conductivity (K) impart good thermal shock resistance, erosion resistance and abradability characteristics to the seal structure.

摘要翻译： 公开了一种能够在燃气涡轮发动机环境中长期可靠服务的耐用的外部空气密封结构。 开发了能够将耐高温陶瓷材料结合到外部空气密封结构中的各种构造细节。 该结构围绕金属材料的多孔，低模量焊盘构成，其设置在陶瓷材料和固体金属材料的基底之间。 将陶瓷材料施加到优选的密度，其中弹性模量（E），平均拉伸强度（T），热膨胀系数（α）和热导率（K）的物理性质赋予良好的耐热冲击性，耐侵蚀性 和密封结构的耐磨特性。