Michael J Maloney

US Patent:

6365236, Apr 2, 2002

Filed:

Dec 20, 1999

Appl. No.:

09/468026

Inventors:

Michael J. Maloney - Manchester CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

C23C 800

US Classification:

427585, 427250, 42725528, 4272557, 427404, 4274192

Abstract:

Methods of producing layered ceramic coatings in which some layers contain porosity are described, as are the coatings produced. The different layers are applied at different temperature conditions by periodically inserting a heat blocking shield between the heat source and either the evaporation source and/or an external heater. As applied, some of the layers have a Zone I structure and some have a Zone II type structure. Heat treatment may be used to increase the porosity in the Zone I structure layers.

US Patent:

7455913, Nov 25, 2008

Filed:

Jan 10, 2006

Appl. No.:

11/328896

Inventors:

Melvin Freling - West Hartford CT, US
Michael J. Maloney - Marlborough CT, US
David A. Litton - Rocky Hill CT, US
Kevin W. Schlichting - Storrs CT, US
John G. Smeggil - Simsbury CT, US
David B. Snow - Glastonbury CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B32B 9/00

US Classification:

428469, 428472, 428701, 428702, 416241 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).

US Patent:

7622195, Nov 24, 2009

Filed:

Jan 10, 2006

Appl. No.:

11/328895

Inventors:

Kevin W. Schlichting - Storrs CT, US
David A. Litton - Rocky Hill CT, US
Michael J. Maloney - Marlborough CT, US
Melvin Freling - West Hartford CT, US
John G. Smeggil - Simsbury CT, US
David B. Snow - Glastonbury CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B32B 9/00
B05D 7/00

US Classification:

428469, 428472, 428701, 428702, 4274192, 416241 B

Abstract:

A process of coating an article includes the steps of (1) applying a ceramic based compound to at least one surface of an article to form a layer of ceramic based compound; (2) applying at least one inert compound upon the ceramic based compound layer to form a protective layer, wherein the at least one inert compound is composed of a first inert compound having a cubic crystalline structure of formula (I) ABXO, or a second inert compound comprising a hexagonal crystalline structure of formula (II) ABXO, or a mixture of the first inert compound and the second inert compound; (3) optionally drying the coated article; (4) optionally repeating steps (2) and (3); and (5) heat treating the coated article.

US Patent:

7722959, May 25, 2010

Filed:

Sep 6, 2006

Appl. No.:

11/516389

Inventors:

Kevin W. Schlichting - Storrs CT, US
David A. Litton - Rocky Hill CT, US
Michael J. Maloney - Marlborough CT, US
Melvin Freling - West Hartford CT, US
John G. Smeggil - Simsbury CT, US
David B. Snow - Glastonbury CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B32B 9/00

US Classification:

428469, 428472, 428701, 428702, 416241 B

Abstract:

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.

US Patent:

7736759, Jun 15, 2010

Filed:

Jan 20, 2006

Appl. No.:

11/336572

Inventors:

Kevin W. Schlichting - Storrs CT, US
Michael J. Maloney - Marlborough CT, US
David A. Litton - Rocky Hill CT, US
Melvin Freling - West Hartford CT, US
John G. Smeggil - Simsbury CT, US
David B. Snow - Glastonbury CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B32B 9/00

US Classification:

428701, 428472, 428469, 428697, 428699, 428702

Abstract:

A turbine engine component is provided which has a substrate, a yttria-stabilized zirconia coating applied over the substrate, and a molten silicate resistant outer layer. The molten silicate resistant outer layer is formed from gadolinia or gadolinia-stabilized zirconia. A method for forming the coating system of the present invention is described.

US Patent:

7776459, Aug 17, 2010

Filed:

Aug 18, 2006

Appl. No.:

11/506687

Inventors:

Kevin W. Schlichting - Storrs CT, US
Michael J. Maloney - Marlborough CT, US
David A. Litton - Rocky Hill CT, US
Melvin Freling - West Hartford CT, US
John G. Smeggil - Simsbury CT, US
David Snow - Glastonbury CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B32B 9/00
F01D 5/14
F01D 25/08

US Classification:

428699, 428701, 428702, 416241 R, 416241 B

Abstract:

A turbine engine component has a substrate and a thermal barrier coating deposited onto the substrate. The thermal barrier coating comprises a ceramic material having a sodium containing compound incorporated therein. The sodium containing compound is present in a concentration so that when molten sand reacts with the coating, sodium silicate is formed as the by product.

US Patent:

7785722, Aug 31, 2010

Filed:

Jan 20, 2006

Appl. No.:

11/336438

Inventors:

Melvin Freling - West Hartford CT, US
Kevin W. Schlichting - Storrs CT, US
Michael J. Maloney - Marlborough CT, US
David A. Litton - Rocky Hill CT, US
John G. Smeggil - Simsbury CT, US
David B. Snow - Glastonbury CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B32B 9/00

US Classification:

428701, 428472, 428469, 428697, 428699, 428702

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 alternating layers of yttria-stabilized zirconia and a molten silicate resistant material. The molten silicate resistant outer layer may be formed from 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, zirconium, hafnium, and titanium or may be formed from a gadolinia-stabilized zirconia. 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.

US Patent:

7875370, Jan 25, 2011

Filed:

Aug 18, 2006

Appl. No.:

11/506376

Inventors:

Kevin W. Schlichting - Storrs CT, US
Michael J. Maloney - Marlborough CT, US
David A. Litton - Rocky Hill CT, US
Melvin Freling - West Hartford CT, US
John G. Smeggil - Simsbury CT, US
David Snow - Glastonbury CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B32B 9/00

US Classification:

428699, 428689, 428697, 428701, 428702

Abstract:

A turbine engine component has a substrate, a thermal barrier coating deposited onto the substrate, and a sealing layer of ceramic material on an outer surface of the thermal barrier coating for limiting molten sand penetration.