INVESTIGATION OF GROWTH OF ELECTROMAGNETIC SINGLE CRYSTALS.
Abstract
Research was carried out on the growth of single crystals of plain and doped sapphire, ruby, spinel, yttrium oxide, magnesium titanate, yttrium iron garnet, beryl, cerium molybdate, lanthanum molybdate, sodium ferrite, and high melting fluorides. The methods of growth which were studied were the Verneuil and Czochralski techniques and groowth from a flux. The work resulted in the development of a new three-tube Verneuil burner, as well as the production of more than seventy single crystal boules by the Verneuil process. Preliminary work on a new powder feed mechanism for the Verneuil furnace is described. A long range program for the Czochralski and flux growth of corundum and the initial results from this program are described with the equipment modifications which were necessary. Results from attempts to use the Czochralski method for the production of cerium molybdate, lanthanum molybdate, and yttrium iron garnet are included as well as a review of the technical needs for the laboratory production of single crystals of the metallic fluorides. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 26, 1964
- Accession Number
- AD0612282
Entities
People
- Carolus M. Cobb
- Elbridge B. Wallis
- Joseph A. Adamski