Research in Zircon Polarizers.

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Abstract:

Attempts to grow single crystals of zircon ZrSiO4 by molten salt and hydrothermal techniques are described. Well developed crystals with 110 and 111 faces were grown up to 4 mm in size from a lithium tungstate melt. The crystal were colored pale to dark brown due to absorption of iron impurities along preferred crystallographic planes. A technique was developed for sintering high purity ZrO2 and SiO2 to yield pellets suitable for use as hydrothermal nutrient. High quality hydrothermal zircon growth was achieved on 1 x 12 inch 110 faces of natural zircon seed crystals. Experiments were performed in a one-inch platinum system at 500C and 29,000 psi using 3M KF as mineralizer. Author

Author(s):
Belt, Roger F. ; Puttbach, Richard C. ; Dharmarajan, Ramanathan
Author Organization(s):
AIRTRON INC MORRIS PLAINS N J
Descriptive Note:
Quarterly rept. no. 2, Oct-Dec 70,
Supplementary Note:
See also Quarterly rept. no. 1, AD-714 525.
Pagination:
0037

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
R11-590-2
Contract/Grant Number(s):
N00014-70-C-0379
Project Number(s):
NR-016-403
 Subject Terms
Communities of Interest:
Air Platforms
Descriptor(s):
(*ZIRCONIUM COMPOUNDS, *CRYSTAL GROWTH), (*POLARIZING FILTERS, CRYSTAL GROWTH), (*SINGLE CRYSTALS, CRYSTAL GROWTH), SOLUBILITY, SILICATES, SINTERING FURNACES, SINTERING, ZIRCONIUM OXIDES, SILICON DIOXIDE, FEASIBILITY STUDIES, MANUFACTURING
Field(s)/Group(s):
Crystallography
Keyword(s):
*ZIRCON, *ZIRCON CRYSTALS, FUSED SALTS, HYDROTHERMAL CRYSTAL GROWTH, CZOCHRALSKI METHOD
Report Date:
1971 Jan 30