Sialon for Monolithic Ceramic Gun Barrel Liners

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911QX-05-C-0079
Agency Tracking Number: A043-046-2960
Amount: $120,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: 2004
Solicitation Topic Code: A04-046
Solicitation Number: 2004.3
Small Business Information
7960 S. Kolb Rd., Tucson, AZ, 85706
DUNS: 147518286
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 George Hida
 Senior Scientist
 (520) 574-1980
Business Contact
 James Withers
Title: Chief Executive Officer
Phone: (520) 574-1980
Research Institution
Standard chromium plated steel gun barrels have long been a limitation in lifecycle and lethality and limits utilization of more advanced propellants and projectiles as well as inherently heavy. It is anticipated that some select ceramic materials as gun barrel liners will substantially increase barrel life, accuracy, muzzle kinetic energy and provide a considerable weight reduction. One specific sialon ceramic composition of Si3Al3O3N5 has higher strength and fracture toughness than any other monolithic ceramic and has been production produced by the PI in tubes similar to gun barrel liners in lengths of 1200 mm with a tolerance very close to that required for gun barrel liners. This program will utilize the demonstrated production processing of Si3Al3O3N5 sialon as a basis and demonstrate processing control to produce 500 mm barrels that meet diameter tolerance of ±0.15 mm and concentricity/bowing specification equivalent to current metal barrels. Sialon tubes 500 mm long that meet tolerance specifications will be delivered and a 1000 mm tube will be produced which is possible because of the established production processing that has produced 1200 mm sialon tubes.

* Information listed above is at the time of submission. *

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