公开(公告)号：SG151092A1

公开(公告)日：2009-04-30

申请号：SG2005084918

申请日：2003-08-21

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LITTON DAVID A ,  ULION NICHOLAS E ,  TRUBELJA MLADEN F ,  MALONEY MICHAEL J ,  WARRIER SUNIL GOVINDA

IPC: C01F17/00 ,  C01G25/02 ,  C01G27/02 ,  C04B35/488 ,  C04B35/50 ,  C09D5/18 ,  C23C4/10 ,  F01D5/28 ,  C23C28/00 ,  C23C30/00 ,  F02C7/00 ,  F23R3/42 ,  C04B35/01 ,  C09D1/00 ,  C23C14/08 ,  C23C14/22 ,  C23C16/00

Abstract: THERMAL BARRIER COATINGS WITH LOW THERMAL CONDUCTIVITY

公开(公告)号：SG150382A1

公开(公告)日：2009-03-30

申请号：SG2005084975

申请日：2003-08-21

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LITTON DAVID A ,  ULION NICHOLAS E ,  TRUBELJA MLADEN F ,  MALONEY MICHAEL J ,  WARRIER SUNIL GOVINDA

IPC: C01F17/00 ,  F01D5/28 ,  C01G25/02 ,  C01G27/02 ,  C04B35/488 ,  C04B35/50 ,  C09D5/18 ,  C23C4/10 ,  C23C28/00 ,  C23C30/00 ,  F02C7/00 ,  F23R3/42

Abstract: THERMAL BARRIER COATINGS WITH LOW THERMAL CONDUCTIVITY A thermal barrier coating comprising from 0.5 to 22.5 mol% of Yb2O3, and from 0.5 to 59.5 mol% of at least one oxide from the group consisting of In2O3, Sc2O3, MgO, CaO, and mixtures thereof, combined with at least 40 mol% of an oxide selected from the group consisting of zirconia, hafnia, and ceria.

公开(公告)号：CA2437758C

公开(公告)日：2008-06-17

申请号：CA2437758

申请日：2003-08-20

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LITTON DAVID A ,  ULION NICHOLAS E ,  TRUBELJA MLADEN F ,  MALONEY MICHAEL J ,  WARRIER SUNIL GOVINDA

IPC: C23C30/00 ,  F01D5/28 ,  C01F17/224 ,  C01G25/02 ,  C01G27/02 ,  C09D5/18 ,  C22C29/12 ,  C23C4/10 ,  C23C28/00 ,  F02C7/00 ,  F23R3/42

Abstract: A ceramic material having particular utility as a thermal insulating or thermal barrier coating on metallic substrates is provided. The ceramic material broadly comprises at least one oxide and the balance comprising a first oxide selected from the group consisting of zirconia, ceria, and hafnia. The at least one has a formula A2O3 where A is selected from the group consisting of La, Pr, Nd, Sm, Eu, Tb, In, Sc, Y, Dy, Ho, Er, Tm, Yb, Lu, and mixtures thereof. The present invention also broadly relates to an article having a metal substrate and a thermal barrier coating as discussed above.

公开(公告)号：SG140539A1

公开(公告)日：2008-03-28

申请号：SG2007058100

申请日：2007-08-08

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SCHLICHTING KEVIN W ,  LITTON DAVID A ,  MALONEY MICHAEL J ,  FRELING MELVIN ,  SMEGGIL JOHN G ,  SNOW DAVID B

Abstract: SILICATE RESISTANT THERMAL BARRIER COATING WITH ALTERNATING LAYERS A thermal barrier coating system for use on a turbine engine component which reduces sand related distress is provided. The coating system comprises at least one first layer of a stabilized material selected from the group consisting of zirconia, hafnia, and titania and at least one second layer containing at least one of oxyapatite and garnet. Where the coating system comprises multiple first layers and multiple second layers, the layers are formed or deposited in an alternating manner.

公开(公告)号：AT382720T

公开(公告)日：2008-01-15

申请号：AT05251745

申请日：2005-03-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： ULION NICHOLAS E ,  BROADHURST DONALD ,  MALONEY MICHAEL J ,  CLAVETTE CLAUDE J ,  LITTON DAVID A ,  TRUBELJA MLADEN

IPC: B32B7/02 ,  C23C14/06 ,  B32B18/00 ,  C23C14/30 ,  C23C14/58 ,  C23C28/00 ,  F01D5/28

Abstract: A method for reducing thermal conductivity in thermal barrier coatings (TBC) through the incorporation of porosity comprising the steps of depositing a mixture comprising a TBC matrix (13) and a fugitive material (11) upon a part to form a layer, and heating the layer at a temperature and for a duration sufficient to liberate a portion of the fugitive material to form a porous network.

公开(公告)号：SG134216A1

公开(公告)日：2007-08-29

申请号：SG2006086771

申请日：2006-12-12

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LITTON DAVID A ,  SCHLICHTING KEVIN W ,  FRELING MELVIN ,  SMEGGIL JOHN G ,  SNOW DAVID B ,  MALONEY MICHAEL J

Abstract: A turbine engine component is provided which has a substrate and a thermal barrier coating applied over the substrate. The thermal barrier coating comprises at least one layer of a first material selected from the group consisting of a zirconate, a hafnate, a titanate, and mixtures thereof, which first material has been mixed with, and contains, from about 25 to 99 wt% of at least one oxide. The at least one oxide comprises at least one oxide of a material selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, indium, and yttrium. If desired, a metallic bond coat may be present between the substrate and the thermal barrier coating system. A method for forming the thermal barrier coating system of the present invention is described.

公开(公告)号：SG134215A1

公开(公告)日：2007-08-29

申请号：SG2006086748

申请日：2006-12-12

Applicant: UNITED TECHNOLOGIES CORP

Inventor： FRELING MELVIN ,  MALONEY MICHAEL J ,  LITTON DAVID A ,  SCHLICHTING KEVIN W ,  SMEGGIL JOHN G ,  SNOW DAVID B

Abstract: A process of coating an article includes the steps of (1) applying upon at least one surface of an article at least one graded layer of at least one ceramic based compound comprising at least one metal selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutelium, indium, scandium, yttrium, zirconium, hafnium, titanium, and mixtures thereof; (2) optionally drying the coated article; and (3) optionally repeating steps (1) and (2).

公开(公告)号：PL373690A1

公开(公告)日：2005-09-19

申请号：PL37369005

申请日：2005-03-15

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LITTON DAVID A ,  ULION NICHOLAS E ,  TRUBELJA MLADEN F ,  MALONEY MICHAEL J ,  WARRIER SUNIL GOVINDA

IPC: F01D5/28 ,  C01F17/224 ,  C01G25/02 ,  C01G27/02 ,  C04B35/565 ,  C04B35/584 ,  C04B41/50 ,  C04B41/85 ,  C04B41/87 ,  C04B41/89 ,  C09D1/00 ,  C09D5/18 ,  C09D7/80 ,  C23C4/10 ,  C23C14/00 ,  C23C14/08 ,  C23C14/30 ,  C23C28/00 ,  C23C28/04 ,  C23C30/00 ,  F01D9/02 ,  F01D25/00 ,  F01N3/00 ,  F02C7/00 ,  F23R3/42

Abstract: A turbine component has a substrate formed from a ceramic material selected from the group consisting of a monolithic ceramic material and a composite ceramic material and a thermal barrier coating bonded to the substrate. In one embodiment, the ceramic material forming the substrate is selected from the group of silicon nitride and self-reinforced silicon nitride. In another embodiment, the ceramic material forming the substrate is selected from the group consisting of a silicon carbide-silicon carbide material and a carbon-carbon material. At least one bond coat layer may be interposed between the substrate and the thermal barrier coating.

公开(公告)号：DE69719701T2

公开(公告)日：2003-12-04

申请号：DE69719701

申请日：1997-12-12

Applicant: UNITED TECHNOLOGIES CORP

Inventor： MALONEY MICHAEL J

IPC: C01B13/14 ,  C23C4/00 ,  C23C4/10 ,  C23C14/08 ,  C23C28/00 ,  C23C28/04 ,  C23C30/00 ,  F01D5/28 ,  F02K1/82 ,  F23R3/00 ,  F02C7/00

Abstract: A new family of ceramic materials is identified having particular utility as thermal insulating or thermal barrier coatings on metallic substrates. The ceramic materials have a pyrochlore structure and are typified by the composition A2B2O7 where A and B are various ions and 0 is oxygen. A may have a positive charge of 3 or 2 and B may have a positive charge of 4 or 5 . These materials are characterized by having chemical stability, thermal stability and thermal insulating properties superior to those of currently used thermal barrier ceramics. An example pyrochlore material is lanthanum zirconate.

公开(公告)号：SG71925A1

公开(公告)日：2000-04-18

申请号：SG1999002559

申请日：1999-05-24

Applicant: UNITED TECHNOLOGIES CORP

Inventor： MALONEY MICHAEL J

IPC: F02C7/00 ,  C23C14/08 ,  C23C14/24 ,  C23C14/30 ,  C23C14/32 ,  C23C14/34 ,  C23C28/00 ,  F01D5/28

Abstract: An article (10) having an improved thermal barrier coating (18) is disclosed. The article includes a superalloy substrate (12), and an adherent alumina layer (16) generated on the substrate surface. The article also includes a layer (18) of ceramic material forming a columnar grain, thermal barrier coating on the alumina layer (16). The coating (18) is composed of a generally homogeneous mixture of two materials, such as yttria and ceria and preferably at least about 5w/o yttria, balance ceria. The article (10) may also include an intermediate ceramic bond coat (17), such as a layer of yttria strengthened zirconia, to enhance the adherence of the thermal barrier coating. An associated apparatus and method for making the article are also disclosed. The TBC (thermal barrier coating) is applied by means of a EB-PVD process. The crucible is adapted to contain the ceramics separately from one another. The scan frequency of the electron beam is adapted in relation to the difference in vapour pressure between both materials and to the attainable composition.