Melvin F Freling

US Patent:

6815099, Nov 9, 2004

Filed:

Mar 1, 2000

Appl. No.:

09/516997

Inventors:

Paul H. Zajchowski - Enfield CT
Melvin Freling - West Hartford CT
Susan M. Meier - Vernon CT
Roy R. Donovan - late of Vernon CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B32B 900

US Classification:

428698, 423332, 423472

Abstract:

A metallic coating containing hard carbide particles is described. The coating is applied by an HVOF process using powder particles whose size ranges from about 15 to about 44 microns. The carbide particles are held in a 80% nickel-20% chromium matrix. The coating has a reduced tensile compressive stress relative to similar plasma sprayed coatings and exhibits a high strain to cracking value.

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:

7579087, Aug 25, 2009

Filed:

Jan 10, 2006

Appl. No.:

11/328894

Inventors:

Michael J. Maloney - Marlborough CT, US
David A. Litton - Rocky Hill CT, US
Kevin W. Schlichting - Storrs 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 process of coating an article includes the steps of (1) forming a layer of a ceramic based compound on an article; (2) providing a solution containing a metal as a particulate having a diameter of about 10 nanometers to about 1000 nanometers and present in an amount of about 25 percent to about 50 percent by volume of the solution; (3) contacting the ceramic based compound layer with the solution; (4) drying the article; and (5) optionally repeating steps (3) and (4).

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:

7662489, Feb 16, 2010

Filed:

Jan 20, 2006

Appl. No.:

11/336437

Inventors:

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

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:

7754350, Jul 13, 2010

Filed:

May 2, 2006

Appl. No.:

11/415262

Inventors:

Melvin Freling - West Hartford CT, US
Paul Henry Zajchowski - Enfield CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B32B 15/00
B32B 15/01
B32B 15/04
C23C 30/00

US Classification:

428698, 428469, 428668, 428680, 427456

Abstract:

A coating suitable for use as a wear-resistant coating for a gas turbine engine component comprises titanium chrome carbonitride and nickel cobalt.