Thermal stability of the lining in a zirconium dioxide trap in a major accident

摘要

Test results are presented on the thermal stabilities of specimens and full-scale components (bricks) made of a new ceramic based on zirconium dioxide. The thermal resistance has been improved by using a certain ratio of coarse-grained and fine-grained fractions. The resistance has been determined by the use of single or repeated heating and cooling cycles. The data give a forecast of the resistance when these components are used in the coating of a trap subject to the action of molten core material in major nuclear power station accidents.