公开(公告)号：US20180226222A1

公开(公告)日：2018-08-09

申请号：US15426331

申请日：2017-02-07

Applicant: United Technologies Corporation

Inventor： James W. Neal ,  Michael J. Maloney ,  Kevin W. Schlichting ,  David A. Litton

IPC: H01J37/30 ,  G01K7/02 ,  G01K1/14 ,  G01N25/00 ,  H01J37/317 ,  C23C14/24 ,  C23C14/54

CPC classification number: H01J37/3005 ,  C23C14/243 ,  C23C14/30 ,  C23C14/505 ,  C23C14/54 ,  G01K1/14 ,  G01K7/02 ,  G01K13/08 ,  G01N25/00 ,  H01J37/3178 ,  H01J2237/2001 ,  H01J2237/20214

Abstract: A system for measuring a temperature of a rotating workpiece comprises a deposition chamber, a crucible within the deposition chamber, an energy source, a drive system, a temperature sensor, first and second sensor wires, a dynamic electrical connection, and a control system. The crucible is configured to hold a deposition feedstock material. The energy source is configured to evaporate the deposition feedstock material. The drive system is configured to rotate the workpiece such that the evaporated deposition feedstock material can impinge the rotating workpiece. The temperature sensor is configured to sense the temperature of the rotating workpiece. The first and second sensor wires are electrically connected to the temperature sensor. The dynamic electrical connection is configured to electrically communicate the signal indicative of the sensed temperature from the rotatable workpiece holder to the stationary portion. The control system is configured to measure the temperature of the workpiece during rotation.

公开(公告)号：US20180073129A1

公开(公告)日：2018-03-15

申请号：US15265102

申请日：2016-09-14

Applicant: United Technologies Corporation

Inventor： James W. Neal ,  Michael J. Maloney ,  Kevin W. Schlichting ,  Eric Jorzik ,  David A. Litton

IPC: C23C14/30 ,  C23C14/24

Abstract: An electron beam vapor deposition process for depositing coatings includes placing a source coating material in a crucible of a vapor deposition apparatus; energizing the source coating with an electron beam raster pattern that delivers a controlled power density to the material in the crucible forming a vapor cloud from the source coating material; and depositing the source coating material onto a surface of a work piece.

公开(公告)号：US09885110B2

公开(公告)日：2018-02-06

申请号：US14810767

申请日：2015-07-28

Applicant: United Technologies Corporation

Inventor： Dmitri Novikov ,  Sergei F. Burlatsky ,  David Ulrich Furrer ,  David A. Litton

IPC: C23C14/54 ,  C23C14/22 ,  C23C14/24 ,  F01D25/00

CPC classification number: C23C14/54 ,  C23C14/228 ,  C23C14/243 ,  F01D25/005

Abstract: A method or control strategy in a coating apparatus for use in a coating process can include controlling differential gas pressures among multiple selected localized zones in a coating chamber with respect to each other. The controlled differential gas pressure of the multiple selected localized zones is used to influence how a coating deposits on at least one component. The localized zones can be selected from a first localized zone around the component, a second localized zone adjacent the source of coating material, a third localized zone that diverges from the second localized zone toward the first localized zone, and a fourth localized zone that circumscribes at least the third localized zone.

公开(公告)号：US20180030597A1

公开(公告)日：2018-02-01

申请号：US15222607

申请日：2016-07-28

Applicant: United Technologies Corporation

Inventor： David A. Litton ,  Peter F. Gero ,  Kevin W. Schlichting

IPC: C23C16/455 ,  C23C16/46 ,  F01D5/28 ,  F23R3/28 ,  F01D11/08 ,  F23R3/00 ,  F02C7/24 ,  C23C4/134 ,  F01D9/02

CPC classification number: C23C16/45525 ,  C23C4/134 ,  C23C14/083 ,  C23C14/30 ,  C23C14/505 ,  C23C14/568 ,  C23C16/46 ,  F01D5/288 ,  F01D9/02 ,  F01D11/08 ,  F02C7/24 ,  F05D2220/32 ,  F05D2230/31 ,  F05D2230/90 ,  F05D2240/35 ,  F05D2300/175 ,  F23R3/002 ,  F23R3/28

Abstract: An apparatus for depositing a coating on a part comprises: a chamber; a source of the coating material, positioned to communicate the coating material to the part in the chamber; a plurality of thermal hoods; and means for moving a hood of the plurality of thermal hoods from an operative position and replacing the hood with another hood of the plurality of hoods.

公开(公告)号：US20170101709A1

公开(公告)日：2017-04-13

申请号：US14880861

申请日：2015-10-12

Applicant: United Technologies Corporation

Inventor： James W. Neal ,  Michael J. Maloney ,  Kevin W. Schlichting ,  Eric Jorzik ,  David A. Litton ,  Brian T. Hazel

IPC: C23C14/30 ,  F01D25/00 ,  F01D25/28 ,  C23C14/08

CPC classification number: C23C14/30 ,  C23C14/0021 ,  C23C14/083 ,  F01D5/288 ,  F01D25/005 ,  F01D25/28 ,  F05D2230/31 ,  F05D2300/611

Abstract: A method includes forming a multi-layered ceramic barrier coating under a chamber pressure of greater than 1 Pascals. In the method, low- and high-dopant ceramic materials are evaporated using input evaporating energies that fall, respectively, above and below a threshold for depositing the materials in a columnar microstructure (low-dopant) and in a branched columnar microstructure (high-dopant).

公开(公告)号：US11276556B2

公开(公告)日：2022-03-15

申请号：US16836337

申请日：2020-03-31

Applicant: United Technologies Corporation

Inventor： James W. Neal ,  Michael J. Maloney ,  Kevin W. Schlichting ,  David A. Litton

IPC: H01J37/30 ,  G01K1/14 ,  G01K7/02 ,  G01K13/08 ,  C23C14/50 ,  C23C14/24 ,  C23C14/54 ,  G01N25/00 ,  H01J37/317 ,  C23C14/30

Abstract: A vapor deposition system fixture comprises an arm, a rake, a crown gear bearing assembly, a workpiece holder, a thermocouple, and a contact ring assembly. The crown gear bearing assembly is attached to and rotatably engaged with the rake and includes stationary portion and rotating portions. The workpiece holder is configured to rotate with the rotating portion. The thermocouple is configured to rotate with the workpiece holder. The contact ring assembly comprises a housing, a cover, first and second rotating contact rings, and first and second stationary contact rings. The housing is attached to at least one of the arm and the rake. The first and second rotating contact rings are electrically connected to the thermocouple. The first and second stationary contact rings surround the rotating ring. The first and second stationary contact rings are configured to receive an electrical signal from the first and second rotating contact rings.

公开(公告)号：US20200318229A1

公开(公告)日：2020-10-08

申请号：US16834244

申请日：2020-03-30

Applicant: United Technologies Corporation

Inventor： Brian T. Hazel ,  David A. Litton ,  Kaylan M. Wessels

IPC: C23C14/28 ,  C23C14/24 ,  C23C14/50

Abstract: An electron beam vapor deposition process for depositing coatings comprises placing a source coating material in a crucible of a vapor deposition apparatus having a coating chamber; pressurizing said coating chamber from about 0.5 microbar to about 40 microbar; heating a work piece surface to a temperature of from 1800 degrees Fahrenheit to 2000 degrees Fahrenheit; energizing said source coating with an electron beam that delivers a power density to the material in the crucible forming a vapor cloud from said source coating material; and depositing said source coating material onto a surface of a work piece.

公开(公告)号：US10648077B2

公开(公告)日：2020-05-12

申请号：US15962173

申请日：2018-04-25

Applicant: United Technologies Corporation

Inventor： David A. Litton ,  Peter F. Gero ,  Kevin W. Schlichting

IPC: C23C16/00 ,  C23C16/455 ,  C23C14/30 ,  C23C14/50 ,  C23C14/56 ,  C23C4/134 ,  C23C16/46 ,  F01D5/28 ,  F01D9/02 ,  F01D11/08 ,  F02C7/24 ,  F23R3/00 ,  F23R3/28 ,  C23C14/08

Abstract: An apparatus for depositing a coating on a part comprises: a chamber; a source of the coating material, positioned to communicate the coating material to the part in the chamber; a plurality of thermal hoods; and means for moving a hood of the plurality of thermal hoods from an operative position and replacing the hood with another hood of the plurality of hoods.

公开(公告)号：US10597329B2

公开(公告)日：2020-03-24

申请号：US16298204

申请日：2019-03-11

Applicant: United Technologies Corporation

Inventor： Mario P. Bochiechio ,  David A. Litton ,  Michael J. Maloney

IPC: C04B35/488 ,  C23C16/44 ,  C23C14/22 ,  F01D5/28 ,  C23C28/04 ,  C23C28/00 ,  C04B35/50 ,  C04B41/87 ,  C04B41/89 ,  C04B41/00 ,  C04B41/50 ,  C04B41/52 ,  C23C4/134

Abstract: A thermal barrier coating for a turbine engine component contains neodymia, optionally alumina, and zirconia. The thermal barrier coating has resistance to CMAS attack and a low thermal conductivity.

公开(公告)号：US10280517B2

公开(公告)日：2019-05-07

申请号：US15249955

申请日：2016-08-29

Applicant: United Technologies Corporation

Inventor： David A. Litton ,  Brian S. Tryon

IPC: C23C28/00 ,  C23C14/02 ,  C23C14/08 ,  C23C14/30 ,  F01D5/28 ,  C23C28/04 ,  C23C14/24 ,  C23C14/54 ,  F01D25/00

Abstract: The thermal barrier coating system comprises a matrix of a first chemistry with multiple embedded second phases of a second chemistry. The matrix comprises a stabilized zirconia. The second regions comprise at least 40 mole percent of oxides having the formula Ln2O3, where Ln is selected from the lanthanides La through Lu, Y, Sc, In, Ca, and Mg with the balance zirconia (ZrO2), hafnia (HfO2), titania (TiO2), or mixtures thereof. The second phases have a characteristic thickness (T6) of less than 2.0 micrometers (μm). The spacing between second phases has a characteristic thickness (T5) of less than 8.0 micrometers (μm).