Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Properties of yttria-aluminoborate glasses

Journal Article · · Journal of the American Ceramic Society; (USA)
; ;  [1]
  1. Missouri Univ., Rolla, MO (USA). Dept. of Ceramic Engineering

In the Y{sub 2}O{sub 3} {bond} Al{sub 2}O{sub 3} {bond} B{sub 2}O{sub 3} system, homogeneous glasses were obtained from compositions containing from 50 to 65 mol% B{sub 2}O{sub 3}. This paper reports that the density, refractive index, and thermal expansion increase as Y{sub 2}O{sub 3} replaces either B{sub 2}O{sub 3} or Al{sub 2}O{sub 3}. These glasses have a dilatometric softening temperature above 665{degrees}C, and below 300{degrees}C their dc electrical resistivity exceeds that of fused silica. The infrared absorption spectra indicate that BO{sub 3}, BO{sub 4}, and AlO{sub 4} groups are present in these glasses.

OSTI ID:
6436781
Journal Information:
Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 73:6; ISSN JACTA; ISSN 0002-7820
Country of Publication:
United States
Language:
English