Structure and Properties of ZrC/C Heteromodulus High-Temperature Composites

Autor:	S. P. Buyakova, Yu. Ðń. Mirovoy, A. G. Burlachenko
Rok vydání:	2020
Předmět:	010302 applied physics Toughness Materials science 010308 nuclear & particles physics Composite number General Physics and Astronomy chemistry.chemical_element 01 natural sciences Carbide Fracture toughness chemistry 0103 physical sciences Residual porosity Composite material Carbon
Zdroj:	Russian Physics Journal. 63:752-758
ISSN:	1573-9228 1064-8887
Popis:	The influence of free carbon on densification and mechanical properties of ZrC/C heteromodulus composites is studied. It is shown that free carbon in the amount of up to 3 vol % decreases residual porosity in the heteromodulus composites, while the content of free carbon of more than 3 vol % increases it. Furthermore, increased carbon content in ZrC/C composites improves the sintered material toughness. In particular, for pure ZrC KIc = 4.3 MPa·m1/2, and for the composite with 3 vol.% carbon KIc = 7 MPa·m1/2. The lowest fracture toughness is demonstrated by the composite with 15 vol.% carbon KIc = 5.3 MPa·m1/2.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::70f566baae7083554008866d0cfa41ae https://doi.org/10.1007/s11182-020-02094-4 Zobrazit plný text záznamu Plný text ve formátu PDF