TY - RPRT TI - Hydrogen defects in α-Al 2 O 3 and water weakening of sapphire and alumina ceramics between 600 and 1000°C: I. Infrared characterization of defects AU - A. K. Kronenberg AU - J. Castaing AU - T. E. Mitchell AU - S. H. Kirby PY - 2000 DO - 10.1016/s1359-6454(99)00448-6 UR - https://pubs.usgs.gov/publication/70022939 ID - 70022939 ER -