This specification covers the properties and requirements for pellets of stabilized cubic hafnium oxide used in nuclear reactors. Hafnium oxide should consist of a stabilizing agent, the recommended of which is yttrium oxide, though others such as calcium oxide and magnesium oxide may also be used as agreed upon by the buyer and seller. The material shall meet specified values of the following requirements: physical dimensions; density; mechanical properties; phase stabilization; impurity concentration limits; moisture concentration limit; visual appearance; end and circumferential chips; cracks; and fissures and other defects.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification applies to pellets of stabilized cubic hafnium oxide used in nuclear reactors.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C559 Test Method for Bulk Density by Physical Measurements of Manufactured Carbon and Graphite Articles
C859 Terminology Relating to Nuclear Materials
C1098 Specification for Nuclear-Grade Hafnium Oxide Powder
E105 Practice for Probability Sampling of Materials
ANSI/ASMENQA-1 Quality Assurance Requirements for Nuclear Facility Applications
U.S. Government Document
CodeofFederalRegulat Part 50--Energy (10CFR 50) Domestic Licensing of Production and Utilization Facilities
CaO; hafnium oxide; MgO; stabilizer; stabilizing; additive; thermal cycling test; Y2O3; Hafnium oxide; Nuclear fuels (reactor)--specifications; Nuclear materials/applications--specifications; Stabilizing additive; Thermal cycling test
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