DEVELOPMENT OF ALL SAPPHIRE RAMAN CELLS

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 9833
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1989
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
2281 Calle De Luna, Santa Clara, CA, 95054
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Leonard Reed
 (408) 748-9955
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE OBJECTIVE OF THIS INVESTIGATION IS TO PRODUCE A TECHNIQUE FOR JOINING A SAPPHIRE WINDOW OF OPTICAL QUALITY TO A BODY, ALSO COMPOSED OF SAPPHIRE, BY A BONDING PROCESS SUCH THAT SUBSTANTIALLY NO FOREIGN MATERIALS ARE INCLUDED IN THE JOINT. THE IDEAL RESULTING PROCESS WILL PRODUCE A SINGLE CRYSTAL JOINT THAT WILL NOT DEGRADE AFTER PROLONGED EXPOSURE TO 1300 DEG C TEMPERATURES IN CONCERT WITH LEAD VAPOR. THE METHOD CHOSEN TO ACHIEVE THIS OBJECTIVE IS TO HOT PRESS THE SAPPHIRE SURFACES TOGETHER WITH AND WITHOUT A SMALL QUANTITY OF VARY LOW VAPOR PRESSURE MATERIALS SUCH AS COLLOIDAL AL(2)O(3), MGO, THO(2) OR A SOL-GEL MADE OF THESE MATERIALS. THE PROCESS WILL BE DESIGNED SUCH THAT THIS MATERIAL ENTERS INTO SOLID SOLUTION IN THE ALUMINA AND CATALYSES THE FORMATION OF A SINGLE CRYSTAL ACROSS THE JOINT. THE PROCESS IS CARRIED OUT IN A DRY HYDROGEN ATMOSPHERE IN THE TEMPERATURE REGION OF 1400 - 1800 DEG C.

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

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