MANUFACTURING PROCESS FOR LARGE SHEETS OF TRANSPARENT SINGLE CRYSTAL ALUMINUM OXIDE FOR THE CZOCHRALSKI METHOD.
Abstract
The Czochralski technique has been developed or growth of single aluminum oxide in plate form for transparent armor application. A DESCRIPTION OF THE GROWTH PROCESS IS GIVEN ALONG WITH THE DEVELOPMENT WORK CARRIED OUT PRIOR TO ISSUANCE OF THE CONTRACT. Scale-up has been carried out to produce a single crystal plate with dimensions in the as- grown state of 46 x 66 x 3/86 thick. The problems of furnace design and power control for the larger size growth unit is described along with a preliminary amount of the optical quality. (Author-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 1969
- Accession Number
- AD0702930
Entities
People
- G. A. Keig
- J. M. J. Watts