TY - CONF AU - David Black AU - Robert Polvani AU - Kate Medicus AU - H Burdette C2 - Materials Research Society Symposium, Warrendale, PA DA - 2000-02-09 LA - en PB - Materials Research Society Symposium, Warrendale, PA PY - 2000 TI - X-Ray Topography Study of Surface Damage in Single-Crystal Sapphire ER -