Testing of high temperature materials within HTR program in Czech Republic

Abstract

Abstract. Research institutes and also industrial companies in Czech Republic are involved in High Temperature Gas Cooled Reactor (HTGR) program and activities related to the study of advanced materials and HTGR technologies. These activities are supported by EC (within international projects, e.g. FP7-ARCHER, ALLIANCE, GoFastR can be mentioned) and also by Technology Agency of Czech Republic. Within these activities, degradation of metallic and ceramic materials in the high temperature helium atmosphere is investigated, and also new experimental facilities for material testing are built. As examples of tested materials, Alloy 800 H, ferritic steel P91, austenitic steel 316, Inconel 713 and 738 and corundum ceramics could be named. The selected results of exposure experiments in the high temperature helium environment are presented in this paper.

THE EFFECT OF LONG-TERM EXPOSURE TO HIGH TEMPERATURE ATMOSPHERE ON THE MECHANICAL PROPERTIES OF Al₂O₃-BASED CERAMIC MATERIALS

“…Since these materials are readily available, they are currently used for the production of various components of special experimental devices. Their use for producing insulation of the heating elements in high-temperature helium experimental loops has been experimentally verified [11,14]. An overview of the tested materials and their basic properties is provided in Table 1.…”

Microstructure Evaluation of Ceramic Materials Used in the Generation IV Reactors

“…Research organizations and industrial partners are involved in research of high-temperature materials suitable for components of advanced nuclear reactors and other industrial applications [1]. Among investigated materials are high alumina products and alumina products with lower portion of Al 2 O 3 phase.…”