Novel Synthesis of Calcium Oxide-Aluminum Oxide Glasses
Abstract
Binary Al2O3:CaO glasses containing 36-50 mole% Al2O3 were synthesized by containerless processing of liquids in nitrogen using aerodynamic and a pressurized electrostatic-aerodynamic levitator. The critical cooling rate for glass formation RC under containerless conditions was ca. 70 K/s. The Vickers hardness of the glasses was 775-785; and the infrared transmission extended to approximately 5500 nm. The work function of the 36 mole% Al2O3 composition was 3.7 eV at 1100 K.
- Publication:
-
Japanese Journal of Applied Physics
- Pub Date:
- May 2002
- DOI:
- 10.1143/JJAP.41.3029
- Bibcode:
- 2002JaJAP..41.3029W