Accession Number:

AD0738858

Title:

Development of a Process for the Growth of Large Sheets of Single Crystal Aluminum Oxide.

Descriptive Note:

Final rept. 17 Aug 70-17 Jun 71,

Corporate Author:

UNION CARBIDE CORP SAN DIEGO CALIF CRYSTAL PRODUCTS DEPT

Personal Author(s):

• Keig,George A.
• Watts,John M. J.

Report Date:

1971-12-01

Pagination or Media Count:

44.0

Abstract:

The objective of this development program was to use the Bridgman process for the growth of single crystal aluminum oxide in plate form for transparent armor applications. A furnace design was established and testing was carried out on both power and control circuits. A number of growth runs were made to establish the correct operating conditions for crystal growth within a shaped crucible. Successful growth of good quality single crystals was achieved although more work is required to obtain large size under reproducible conditions. Author

Descriptors:

• *CRYSTAL GROWTH
• *ARMOR PLATE
• TRANSPARENT PANELS
• ALUMINUM COMPOUNDS
• OXIDES
• MANUFACTURING
• LABORATORY FURNACES
• SINGLE CRYSTALS

Subject Categories:

• Ceramics, Refractories and Glass
• Armor
• Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE