| http://www.w3.org/ns/prov#value | - The first screening test consisted of subjecting ceramic coated columbium alloy specimens having similar silicide layers between the ceramic layer and columbium alloy substrate to nine cycles of a slow cyclic oxidation test in which the cycle is 40 minutes in duration and the temperature is varied in sine wave fashion from 800??? F. to 2300??? F. and back to 800??? F. The ceramic coated specimens
|
