Accession Number:

ADD019177

Title:

IR Transmitting Rare Earth Gallogermanate Glass-Ceramics

Descriptive Note:

Patent, Filed 15 Nov 96, patented 28 Jul 98

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1998-07-28

Pagination or Media Count:

5.0

Abstract:

A glass-ceramic article or composition which has better thermal and physical properties than the competing materials of zinc sulfide, spinel, or magnesium fluoride comprising 2-30 mole percent yttrium oxide andor rare earth oxide 25-80 mole percent germanium oxide and 5-30 mole percent gallium oxide based on the total moles of yttrium oxide andor the rare earth oxide, germanium oxide, and gallium oxide which article is over 80 by volume crystalline.

Subject Categories:

  • Inorganic Chemistry
  • Ceramics, Refractories and Glass

Distribution Statement:

APPROVED FOR PUBLIC RELEASE