公开(公告)号：US20240183019A1

公开(公告)日：2024-06-06

申请号：US18509828

申请日：2023-11-15

Applicant: ROLLS-ROYCE plc

Inventor： Matthew HANCOCK ,  Andrew HEWITT

IPC: C23C4/18 ,  C23C4/02 ,  C23C4/134

CPC classification number: C23C4/185 ,  C23C4/02 ,  C23C4/134

Abstract: A method of producing a freestanding ceramic tile. The method involves: grit-blasting a substrate using a grit size in the range from 36 to 220 mesh; depositing a release layer of carbon or graphite from 2 to 10 microns thick on the grit-blasted surface of the substrate; applying ceramic over the release layer until a desired thickness of ceramic is achieved to form a ceramic layer; heating the substrate, release layer, and ceramic layer to a temperature of from 800 to 1000 degrees Celsius; keeping the substrate, release layer, and ceramic layer at a temperature from 800 to 1000 degrees Celsius for a time from 10 to 20 minutes to remove the release layer; and cooling the substrate and ceramic layer at a rate of at least 200 degrees Celsius per minute, such that the ceramic layer separates from the substrate to produce a freestanding ceramic tile.

公开(公告)号：US20240093613A1

公开(公告)日：2024-03-21

申请号：US18242816

申请日：2023-09-06

Applicant: ROLLS-ROYCE plc

Inventor： Andrew HEWITT ,  Matthew HANCOCK

IPC: F01D5/28 ,  C25D7/00

CPC classification number: F01D5/288 ,  C25D7/008 ,  F05D2230/40 ,  F05D2230/90 ,  F05D2300/175 ,  F05D2300/2282 ,  F05D2300/611

Abstract: A method (400) for coating a tip (106) of an aerofoil (100) is provided. The method (400) includes depositing a layer of nickel-based gamma/gamma prime chemistry (112) on the tip (106) of the aerofoil (100). The method (400) further includes depositing plurality of abrasive particles (114) on the layer of nickel-based gamma/gamma prime chemistry (112) to form a coating matrix (116). The method (400) further includes heating the tip (106) of the aerofoil (100) at a predetermined temperature in order to perform heat treatment of the coating matrix (116) and increase the strength of the coating (110) on the tip (106) of the aerofoil (100).

公开(公告)号：US20230160316A1

公开(公告)日：2023-05-25

申请号：US17917489

申请日：2021-03-15

Applicant: Rolls-Royce Deutschland Ltd & Co KG ,  Rolls-Royce plc

Inventor： Susanne SCHRÜFER ,  Matthew HANCOCK ,  Kevin LONG

IPC: F01D11/12 ,  F01D5/28

CPC classification number: F01D11/122 ,  F01D5/288 ,  F05D2240/307 ,  F05D2300/611

Abstract: The invention relates to an abrasive material including a nickel aluminide intermetallic phase, in particular a beta nickel aluminide (β-NiAl) intermetallic phase with a Laves phase, as a matrix for abrasive particles. It also relates to a method manufacturing an abrasive material and a blade in a turbomachinery with an abrasive material.

公开(公告)号：US20170362944A1

公开(公告)日：2017-12-21

申请号：US15602436

申请日：2017-05-23

Applicant: ROLLS-ROYCE plc

Inventor： Grant J. GIBSON ,  Matthew HANCOCK ,  Lloyd PALLETT

IPC: F01D5/28 ,  C25D3/12 ,  C25D7/00 ,  C25D15/00 ,  F01D5/02 ,  C25D5/14

CPC classification number: F01D5/288 ,  C25D5/12 ,  C25D7/008 ,  C25D15/00 ,  F01D5/02 ,  F01D5/20 ,  F05D2220/32 ,  F05D2230/30 ,  F05D2230/90 ,  F05D2300/175 ,  F05D2300/177 ,  F05D2300/516 ,  F05D2300/6032

Abstract: A gas turbine engine component made of a nickel-based superalloy, the gas turbine engine component comprising a protective coating. The protective coating includes an inner diffusion barrier layer including any one or any combination of elements selected from the group consisting of platinum, palladium, tantalum, tungsten, hafnium and iridium, and an outer layer of hard material formed of hard particles embedded in a matrix.

公开(公告)号：US20160341051A1

公开(公告)日：2016-11-24

申请号：US15136308

申请日：2016-04-22

Applicant: ROLLS-ROYCE plc

Inventor： Andrew HEWITT ,  Matthew HANCOCK

IPC: F01D5/28 ,  F01D11/12 ,  F01D5/14

CPC classification number: F01D5/288 ,  F01D5/147 ,  F01D5/20 ,  F01D11/12 ,  F01D11/122 ,  F05D2220/32 ,  F05D2230/90 ,  F05D2240/307 ,  F05D2300/171 ,  F05D2300/174 ,  F05D2300/175 ,  F05D2300/177 ,  F05D2300/2282 ,  F05D2300/6032

Abstract: A gas turbine engine component having a raised rim located along one or more edges of a tip region of the component, and an abrasive coating formed of hard particles embedded in a retaining matrix covering the tip region within an area bounded by the raised rim.

Abstract translation: 一种燃气涡轮发动机部件，其具有沿着部件的尖端区域的一个或多个边缘设置的凸起边缘，以及由在由凸起边缘限定的区域内的覆盖尖端区域的保持基体中的硬颗粒形成的研磨涂层。

公开(公告)号：US20130084167A1

公开(公告)日：2013-04-04

申请号：US13625478

申请日：2012-09-24

Applicant: ROLLS-ROYCE PLC

Inventor： Andrew HEWITT ,  Matthew HANCOCK

IPC: F01D11/08 ,  C01F7/02 ,  C23C4/10

CPC classification number: F01D5/288 ,  C23C4/11 ,  C23C4/129 ,  C23C4/134 ,  C23C30/00 ,  F01D5/225 ,  F01D11/122 ,  F05D2230/311 ,  F05D2230/312 ,  F05D2240/307 ,  F05D2300/2112

Abstract: A rotor blade 2 for a gas turbine engine, comprising a blade tip 4. At least a portion of the blade tip 4 is provided with a wear-resistant coating 16, 18 comprising magnesium aluminate spinel.

Abstract translation: 用于燃气涡轮发动机的转子叶片2包括叶片尖端4.叶片尖端4的至少一部分设置有包含铝酸镁尖晶石的耐磨涂层16,18。

公开(公告)号：US20170140548A1

公开(公告)日：2017-05-18

申请号：US15332349

申请日：2016-10-24

Applicant: ROLLS-ROYCE PLC

Inventor： Andrew HEWITT ,  Matthew HANCOCK

IPC: G06T7/40 ,  G01B11/30

CPC classification number: G06T7/40 ,  G01B11/30 ,  G06T7/0004 ,  G06T2207/10016 ,  G06T2207/30164

Abstract: A method of inspecting an object, the method comprising: receiving a first image of a first part of a first surface of the object from a camera arrangement; controlling relative movement between the camera arrangement and the object through a predetermined distance; receiving a second image of a second part of the first surface of the object from the camera arrangement, the second part being different to the first part; generating a third image using at least the first image and the second image; and determining a parameter associated with an abrasive surface coating on the object using the third image.

公开(公告)号：US20160069195A1

公开(公告)日：2016-03-10

申请号：US14818700

申请日：2015-08-05

Applicant: ROLLS-ROYCE PLC

Inventor： Andrew HEWITT ,  Matthew HANCOCK ,  Lloyd PALLETT

IPC: F01D5/28

CPC classification number: F01D5/288 ,  F01D5/20 ,  F01D11/122 ,  F05D2240/307 ,  F05D2300/2261 ,  F05D2300/2283 ,  F05D2300/6032 ,  F05D2300/6033 ,  F05D2300/611

Abstract: The present invention provides a blade tip for a rotary blade, the blade tip comprising a first portion and a radially-recessed second portion. A radially outermost surface of the first portion comprises a first abrasive coating e.g. a composite material comprising cubic boron nitride embedded in a matrix of nickel alloy. A radially outermost surface of the second portion comprises a second abrasive coating which has a greater resistance to oxidation than the first abrasive coating. The increased oxidation resistance of the second abrasive coating is achieved by providing a radially outer protective layer and/or using a material having a greater inherent oxidation resistance.

Abstract translation: 本发明提供了一种用于旋转叶片的叶片尖端，叶片尖端包括第一部分和径向凹入的第二部分。 第一部分的径向最外表面包括第一磨料涂层，例如， 包括嵌入镍合金基质中的立方氮化硼的复合材料。 第二部分的径向最外表面包括具有比第一研磨涂层更大的抗氧化性的第二磨料涂层。 通过提供径向外部保护层和/或使用具有较高固有抗氧化性的材料来实现第二磨料涂层的增加的抗氧化性。