Christopher J Fowler

US Patent:

7074253, Jul 11, 2006

Filed:

Apr 22, 2004

Appl. No.:

10/829824

Inventors:

ChangMin Chun - Belle Mead NJ, US
Narasimha-Rao Venkata Bangaru - Annandale NJ, US
Hyun-Woo Jin - Phillipsburg NJ, US
Jayoung Koo - Bridgewater NJ, US
John Roger Peterson - Ashburn VA, US
Robert Lee Antram - Warrenton VA, US
Christopher John Fowler - Springfield VA, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C22C 29/02

US Classification:

75239, 75240, 75246, 428545

Abstract:

Cermets are provided in which a substantially stoichiometric metal carbide ceramic phase along with a reprecipitated metal carbide phase, represented by the formula MC, is dispersed in a metal binder phase. In MCM is Cr, Fe, Ni, Co, Si, Ti, Zr, Hf, V, Nb, Ta, Mo or mixtures thereof, x and y are whole or fractional numerical values with x ranging from 1 to 30 and y from 1 to 6. These cermets are particularly useful in protecting surfaces from erosion and corrosion at high temperatures.

US Patent:

7153338, Dec 26, 2006

Filed:

Apr 22, 2004

Appl. No.:

10/829821

Inventors:

Narasimha-Rao Venkata Bangaru - Annandale NJ, US
ChangMin Chun - Belle Mead NJ, US
Hyun-Woo Jin - Phillipsburg NJ, US
Jayoung Koo - Bridgewater NJ, US
John Roger Peterson - Ashburn VA, US
Robert Lee Antram - Warrenton VA, US
Christopher John Fowler - Springfield VA, US

Assignee:

Exxonmobil Research and Engineering Company - Annandale NJ

International Classification:

C22C 29/12
C22C 33/00

US Classification:

75235, 75246, 428545

Abstract:

One embodiment of the invention includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein,P is a metal selected from the group consisting of Al, Si, Mg, Ca, Y, Fe, Mn, Group IV, Group V, Group VI elements, and mixtures thereof,Q is oxide,R is a base metal selected from the group consisting of Fe, Ni Co, Mn and mixtures thereof,S consists essentially of at least one element selected from Cr, Al and Si and at least one reactive wetting element selected from the group consisting of Ti, Zr, Hf, Ta, Sc, Y, La, and Ce.

US Patent:

7175686, Feb 13, 2007

Filed:

Apr 22, 2004

Appl. No.:

10/829822

Inventors:

ChangMin Chun - Belle Mead NJ, US
Narasimha-Rao Venkata Bangaru - Annandale NJ, US
Hyun-Woo Jin - Phillipsburg NJ, US
Jayoung Koo - Bridgewater NJ, US
John Roger Peterson - Ashburn VA, US
Robert Lee Antram - Warrenton VA, US
Christopher John Fowler - Springfield VA, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C22C 29/16

US Classification:

75243, 4285395

Abstract:

The invention includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein,.

US Patent:

7175687, Feb 13, 2007

Filed:

Apr 22, 2004

Appl. No.:

10/829816

Inventors:

Narasimha-Rao Venkata Bangaru - Annandale NJ, US
ChangMin Chun - Belle Mead NJ, US
Neeraj Srinivas Thirumalai - Phillipsburg NJ, US
Hyun-Woo Jin - Phillipsburg NJ, US
Jayoung Koo - Bridgewater NJ, US
John Roger Peterson - Ashburn VA, US
Robert Lee Antram - Warrenton VA, US
Christopher John Fowler - Springfield VA, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C22C 29/14

US Classification:

75244

Abstract:

A cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and binder phase (RS) wherein,.

US Patent:

7247186, Jul 24, 2007

Filed:

Apr 22, 2004

Appl. No.:

10/829820

Inventors:

ChangMin Chun - Belle Mead NJ, US
Narasimha-Rao Venkata Bangaru - Annandale NJ, US
Hyun-Woo Jin - Phillipsburg NJ, US
Jayoung Koo - Bridgewater NJ, US
John Roger Peterson - Ashburn VA, US
Robert Lee Antram - Warrenton VA, US
Christopher John Fowler - Springfield VA, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C22C 29/04

US Classification:

75238

Abstract:

The invention includes a cermet composition represented by the formula (PQ) (RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein,.

US Patent:

7288132, Oct 30, 2007

Filed:

Mar 7, 2006

Appl. No.:

11/369614

Inventors:

ChangMin Chun - Belle Mead NJ, US
Narasimha-Rao Venkata Bangaru - Annandale NJ, US
Hyun-Woo Jin - Phillipsburg NJ, US
Jayoung Koo - Bridgewater NJ, US
John Roger Peterson - Ashburn VA, US
Robert Lee Antram - Warrenton VA, US
Christopher John Fowler - Springfield VA, US

Assignee:

Exxonmobil Research and Engineering Company - Annandale NJ

International Classification:

C22C 29/02

US Classification:

75239, 75235, 75240, 75246, 428545

Abstract:

Cermets are provided in which a substantially stoichiometric metal carbide ceramic phase along with a reprecipitated metal carbide phase, represented by the formula MC, is dispersed in a metal binder phase. In MCM is Cr, Fe, Ni, Co, Si, Ti, Zr, Hf, V, Nb, Ta, Mo or mixtures thereof, x and y are whole or fractional numerical values with x ranging from 1 to 30 and y from 1 to 6. These cermets are particularly useful in protecting surfaces from erosion and corrosion at high temperatures.

US Patent:

7316724, Jan 8, 2008

Filed:

Apr 22, 2004

Appl. No.:

10/829819

Inventors:

Narasimha-Rao Venkata Bangaru - Annandale NJ, US
Jayoung Koo - Bridgewater NJ, US
ChangMin Chun - Belle Mead NJ, US
Hyun-Woo Jin - Phillipsburg NJ, US
John Roger Peterson - Ashburn VA, US
Robert Lee Antram - Warrenton VA, US
Christopher John Fowler - Springfield VA, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C22C 29/02
C22C 29/12
C22C 29/14
C22C 29/16

US Classification:

75232, 75235, 75236, 75238

Abstract:

A cermet composition represented by the formula (PQ)(RS)X comprising: a ceramic phase (PQ), a binder phase (RS) and X wherein X is at least one member selected from the group consisting of an oxide dispersoid E, an intermetallic compound F and a derivative compound G wherein said ceramic phase (PQ) is dispersed in the binder phase (RS) as particles of diameter in the range of about 0. 5 to 3000 microns, and said X is dispersed in the binder phase (RS) as particles in the size range of about 1 nm to 400 nm.

US Patent:

7384444, Jun 10, 2008

Filed:

Aug 4, 2006

Appl. No.:

11/499787

Inventors:

Narasimha-Rao Venkata Bangaru - Annandale NJ, US
ChangMin Chun - Belle Mead NJ, US
Neeraj Srinivas Thirumalai - Phillipsburg NJ, US
Hyun-Woo Jin - Phillipsburg NJ, US
Jayoung Koo - Bridgewater NJ, US
John Roger Peterson - Ashburn VA, US
Robert Lee Antram - Warrenton VA, US
Christopher John Fowler - Springfield VA, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C22C 29/14

US Classification:

75244, 75232

Abstract:

A cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and binder phase (RS) wherein,.