Mark A Chartier

US Patent:

8030234, Oct 4, 2011

Filed:

Oct 7, 2009

Appl. No.:

12/575090

Inventors:

Aleksander J. Pyzik - Midland MI, US
Robert A. Newman - Midland MI, US
Mark A. Chartier - Gladwin MI, US
Amy M. Wetzel - Midland MI, US
Christopher N. Haney - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C04B 35/563
C04B 35/58

US Classification:

501 87, 501 963

Abstract:

An improved aluminum-boron carbide (ABC) composite has been discovered that is comprised of a continuous network of AlBCand boron carbide grains having therein other isolated aluminum-boron carbide reactive phases and at most 2% by volume of isolated metal. The improved ABC composite may be formed by forming boron carbide particulates into a porous body that has a porosity of at most about 35%, where the boron particulates have been heat treated to a temperature of 1200 C. to 1800 C. , infiltrating the porous body with aluminum or aluminum alloy until an infiltrated aluminum-boron carbide body is formed that has at most about 1% porosity, heat treating the infiltrated body for at least 25 hours at 1000 C. to 1100 C. to form an aluminum boron carbide composite having a continuous network of AlBCand boron carbide, and subsequently heat-treating to 700 C.

US Patent:

8580185, Nov 12, 2013

Filed:

Sep 1, 2011

Appl. No.:

13/223337

Inventors:

Aleksander J. Pyzik - Midland MI, US
Robert A. Newman - Midland MI, US
Mark A. Chartier - Gladwin MI, US
Amy M. Wetzel - Midland MI, US
Christopher N. Haney - Midland MI, US

International Classification:

C04B 41/88
C04B 35/563

US Classification:

264643

Abstract:

An improved aluminum-boron carbide (ABC) composite has been discovered that is comprised of a continuous network of AlBCand boron carbide grains having therein other isolated aluminum-boron carbide reactive phases and at most 2% by volume of isolated metal. The improved ABC composite may be formed by forming boron carbide particulates into a porous body that has a porosity of at most about 35%, where the boron particulates have been heat treated to a temperature of 1200 C. to 1800 C. , infiltrating the porous body with aluminum or aluminum alloy until an infiltrated aluminum-boron carbide body is formed that has at most about 1% porosity, heat treating the infiltrated body for at least 25 hours at 1000 C. to 1100 C. to form an aluminum boron carbide composite having a continuous network of AlBCand boron carbide, and subsequently heat-treating to 700 C.

US Patent:

20030089892, May 15, 2003

Filed:

Sep 20, 2002

Appl. No.:

10/247905

Inventors:

Richard Fox - Midland MI, US
Susan Babinec - Midland MI, US
Kevin Howard - Midland MI, US
Mark Chartier - Gladwin MI, US

International Classification:

H01C001/00
H01B001/00

US Classification:

252/500000

Abstract:

Disclosed is an electrically conductive thermoplastic polymer composition comprising a thermoplastic polymer and a synergistic combination of metal fibers and metal-coated fibers, structures made therefrom, and a process to make said compositions and structures.