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Evaluation of the high temperature performance of HfB 2 UHTC particulate filled C f /C composites
Author(s) -
Paul Anish,
Rubio Virtudes,
Binner Jon,
Vaidhyanathan Bala,
Heaton Andrew,
Brown Peter
Publication year - 2017
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12659
Subject(s) - materials science , thermal expansion , composite material , flexural strength , ceramic , particulates , fiber , thermal , ecology , physics , meteorology , biology
Room and high temperature flexural strength and coefficient of thermal expansion ( CTE ) of HfB 2 ultra‐high temperature ceramic ( UHTC ) particulate filled C f /C composites are determined along with UHT oxidation behavior. Both room and high temperature strength of the composites were found to be broadly comparable to those of other thermal protection system materials currently being investigated. The CTE of the composites was measured both along and perpendicular to the fiber direction up to 1700°C and the values were found to depend on fiber orientation by approximately a factor of 3. Arc‐jet testing of the UHTC composites highlighted the excellent ultra‐high temperature oxidation performance of these materials.