Would you like to sign up for e-mail updates?

Yes No

Home » Awards » GROWTH OF NEAR NET SHAPE SAPPHIRE DOMES USING THE HEAT EXCHANGER METHOD

GROWTH OF NEAR NET SHAPE SAPPHIRE DOMES USING THE HEAT EXCHANGER METHOD

Award Information

Agency: Department of Defense	Branch: Navy	Award ID: 5694	Program Year/Program: 1988 / SBIR
Agency Tracking Number: 5694	Solicitation Year: N/A	Solicitation Topic Code: N/A	Solicitation Number: N/A

Small Business Information: Crystal Systems, Inc.
27 Congress Street Salem, MA 01970
View profile »

Woman-Owned: No

Minority-Owned: No

HUBZone-Owned: No

Phase 2: Fiscal Year: 1988

Title: GROWTH OF NEAR NET SHAPE SAPPHIRE DOMES USING THE HEAT EXCHANGER METHOD

Agency / Branch: DOD / NAVY

Contract: N/A

Award Amount: $325,000.00

Abstract:
ON THE BASIS OF PERFORMANCE, SAPPHIRE IS ONE OF THE BEST MATERIALS FOR MISSILE DOME APPLICATIONS. HOWEVER, BOULE UTILIZATION AND HIGH FABRICATION COSTS MAKE IT AN EXPENSIVE CHOICE, AND, THEREFORE, NO U.S. MISSILE PRODUCTION PROGRAMS ARE USING SAPPHIRE DOMES. IT IS DESIRABLE TO GROW NEAR NET-SHAPE SAPPHIRE DOMES FOR MISSILE APPLICATIONS. IT HAS BEEN DEMONSTRATED THAT WHEN MOLYBDENUM SHEETS ARE PLACED IN THE MELT AND SAPPHIRE GROWTH IS CARRIED OUT USING THE HEAT EXCHANGER METHOD, SINGLE CRYSTAL GROWTH IS ACHIEVED IN SPITE OF SUCH PERTURBATION. WHEN DOME-SHAPED MOLYBDENUM PREFORMS WERE NESTED TOGETHER TO PRODUCE SAPPHIRE DOME BLANKS, HIGH OPTICAL QUALITY WAS PRODUCED. HOWEVER, THESE BLANKS WERE CRACKED. THE OBJECTIVE OF THE PHASE I PROGRAM WILL BE TO IDENTIFY THE CAUSE OF CRACKING AND TO DEMONSTRATE THAT CRACK-FREE, DOME-SHAPED SAPPHIRE BLANKS CAN BE PRODUCED DIRECTLY FROM THE MELT.

Principal Investigator:
Chandra P Khattak
6177450088

Business Contact:

Small Business Information at Submission:

Crystal Systems Inc.
27 Congress St - Shetland Indu Salem, MA 01970

EIN/Tax ID:

DUNS: N/A

Number of Employees:

Woman-Owned: No

Minority-Owned: No

HUBZone-Owned: No