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Sunil Warrier Phones & Addresses

  • Clermont, FL
  • Dayton, OH
  • 95 Greenview Ter, Middletown, CT 06457 (860) 632-7864
  • East Hartford, CT
  • Cincinnati, OH

Work

Position: Professional/Technical

Education

Degree: Graduate or professional degree

Resumes

Resumes

Sunil Warrier Photo 1

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Industry:
Electrical/Electronic Manufacturing
Work:
Dli
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Sunil Warrier

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Publications

Us Patents

Thermal Barrier Coatings With Low Thermal Conductivity

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US Patent:
6730422, May 4, 2004
Filed:
Aug 21, 2002
Appl. No.:
10/226108
Inventors:
David A. Litton - Rocky Hill CT
Nicholas E. Ulion - Marlborough CT
Mladen F. Trubelja - Manchester CT
Michael J. Maloney - Marlborough CT
Sunil Govinda Warrier - Middletown CT
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
B32B 1504
US Classification:
428701, 428632, 428633, 428702, 428697, 428699, 428650, 428680, 416241 B, 10628719, 1062872, 1062864, 1062868
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 oxide has a formula A O where A is selected from the group consisting of La, Pr, Nd, Sm, Eu, Th, 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.

Interconnect For Solid Oxide Fuel Cells

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US Patent:
7144649, Dec 5, 2006
Filed:
Nov 27, 2002
Appl. No.:
10/307008
Inventors:
Jean Yamanis - S. Glastonbury CT, US
Sunil G. Warrier - Middletown CT, US
Venkata R. Vedula - Middletown CT, US
Raymond C. Benn - Madison CT, US
John G. Smeggil - Simsbury CT, US
Shihong G. Song - South Windsor CT, US
Wayde R. Schmidt - Pomfret Center CT, US
Assignee:
UTC Fuel Cells, LLC - South Windsor CT
International Classification:
H01M 2/00
H01M 8/00
US Classification:
429 34, 429 12
Abstract:
A fuel cell stack includes a plurality of fuel cells each having an anode layer, an electrolyte layer, and a cathode layer, the fuel cells each having a first effective thermal expansion coefficient; a plurality of bipolar plates positioned between adjacent fuel cells having an anode interconnect, a separator plate, and a cathode interconnect, the bipolar plates being positioned between adjacent fuel cells, wherein the anode interconnect is in electrical communication with the anode layer of one adjacent fuel cell, wherein the cathode interconnect is in electrical communication with the cathode layer of another adjacent fuel cell, and wherein at least one interconnect of the cathode interconnect and the anode interconnect has a second thermal expansion coefficient and is adapted to reduce strain between the at least one interconnect and an adjacent fuel cell due to differences between the first and second thermal expansion coefficients over repeated thermal cycles.

Turbine Components With Thermal Barrier Coatings

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US Patent:
7226672, Jun 5, 2007
Filed:
Mar 17, 2004
Appl. No.:
10/803527
Inventors:
David A. Litton - Rocky Hill CT, US
Nicholas E. Ulion - Marlborough CT, US
Mladen F. Trubelja - Manchester CT, US
Michael J. Maloney - Marlborough CT, US
Sunil Govinda Warrier - Middletown CT, US
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
B32B 9/00
B32B 9/04
F03B 3/12
US Classification:
428701, 428446, 428688, 428689, 416241 B, 416241 R
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.

Thermal Barrier Coatings With Low Thermal Conductivity

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US Patent:
7291408, Nov 6, 2007
Filed:
Aug 12, 2003
Appl. No.:
10/641585
Inventors:
David A. Litton - Rocky Hill CT, US
Nicholas E. Ulion - Marlborough CT, US
Mladen F. Trubelja - Manchester CT, US
Michael J. Maloney - Marlborough CT, US
Sunil Govinda Warrier - Middletown CT, US
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
B32B 18/00
B32B 15/04
US Classification:
428702, 416241 B, 428633, 428632, 428699, 428701
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 oxide has a formula AOwhere 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.

Reinforcement Structures For Electrolyte-Supported Solid Oxide Fuel Cell

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US Patent:
7344793, Mar 18, 2008
Filed:
Mar 1, 2004
Appl. No.:
10/790577
Inventors:
Sunil G. Warrier - Middletown CT, US
Jai-woh Kim - East Hartford CT, US
Raymond Benn - Madison CT, US
Shihong Song - South Windsor CT, US
Venkata Vedula - Middletown CT, US
Richard Bailey - Somers CT, US
Assignee:
UTC Power Corporation - South Windsor CT
International Classification:
H01M 2/00
H01M 8/10
H01M 4/00
US Classification:
429 34, 429 30, 429 44
Abstract:
An electrode assembly for solid oxide fuel cells includes an electrolyte member defining a cathode side and an anode side and having an active area and an edge portion; cathode disposed on the cathode side; an anode disposed on the anode side; and at least one electrolyte support member positioned adjacent to the edge portion of the electrolyte and having an opening positioned over at least a portion of the active area.

Compliant Seals For Solid Oxide Fuel Cell Stack

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US Patent:
7977004, Jul 12, 2011
Filed:
Jul 18, 2003
Appl. No.:
10/622881
Inventors:
Sunil G. Warrier - Middletown CT, US
Jean Yamanis - Glastonbury CT, US
Sonia Tulyani - Manchester CT, US
Raymond C. Benn - Madison CT, US
Assignee:
UTC Fuel Cells, LLC. - South Windsor CT
International Classification:
H01M 2/08
US Classification:
429465, 429463, 429509
Abstract:
A seal assembly for a solid oxide fuel cell stack, includes at least two fuel cell stack components having opposed surfaces and a seal member disposed between the surfaces, wherein the seal member is a compliant seal member that is mechanically compliant in both in-plane and out-of-plane directions relative to the surfaces. The seal member is advantageously formed of one or more substantially continuous fibers. Further, preferred materials for the seal member are provided which advantageously allow for a desired level of impermeability while preventing contamination of the fuel cell stack.

High Temperature Seal For Joining Ceramic Components Such As Cells In A Ceramic Oxygen Generator

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US Patent:
7989086, Aug 2, 2011
Filed:
Nov 5, 2003
Appl. No.:
10/702010
Inventors:
Sunil G. Warrier - Middletown CT, US
Richard S. Bailey - Somers CT, US
Willard H. Sutton - Glastonbury CT, US
Assignee:
Hamilton Sundstrand Corporation - Windsor Locks CT
International Classification:
B32B 15/04
B23K 35/22
US Classification:
428621, 428622, 428632, 428660, 428670, 428672
Abstract:
A multi-layer seal arrangement includes a dissolution barrier between a braze alloy and a ceramic component. The inventive seal is useful for joining a ceramic component to another ceramic component or a metal component, for example. In one example, the braze comprises a gold alloy and the dissolution barrier comprises a layer of alumina on the order of 2-3 microns thick. A titanium wetting layer is provided between the alumina layer and the alloy. A metallization layer provided between the dissolution barrier and the ceramic component in one example comprises a layer of gold between two thin layers of titanium. In one particular example, a platinum mesh is included with the gold of the braze alloy to control braze flow during the brazing operation.

High Temperature Seal For Joining Ceramic Components Such As Cells In A Ceramic Oxygen Generator

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US Patent:
8167191, May 1, 2012
Filed:
Jun 21, 2011
Appl. No.:
13/164793
Inventors:
Sunil G. Warrier - Middletown CT, US
Richard S. Bailey - Somers CT, US
Willard H. Sutton - Glastonbury CT, US
Assignee:
Hamilton Sundstrand Corporation - Windsor Locks CT
International Classification:
B23K 31/02
US Classification:
228121, 2281221, 2281246
Abstract:
A multi-layer seal arrangement includes a dissolution barrier between a braze alloy and a ceramic component. The inventive seal is useful for joining a ceramic component to another ceramic component or a metal component, for example. In one example, the braze comprises a gold alloy and the dissolution barrier comprises a layer of alumina on the order of 2-3 microns thick. A titanium wetting layer is provided between the alumina layer and the alloy. A metallization layer provided between the dissolution barrier and the ceramic component in one example comprises a layer of gold between two thin layers of titanium. In one particular example, a platinum mesh is included with the gold of the braze alloy to control braze flow during the brazing operation.
Sunil Govinda Warrier from Clermont, FL, age ~61 Get Report