DEVELOPMENT OF ALL SAPPHIRE RAMAN CELLS

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$50,000.00
Award Year:
1989
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
9833
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
International Technical Assocs
2281 Calle De Luna, Santa Clara, CA, 95054
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Leonard Reed
(408) 748-9955
Business Contact:
() -
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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