MA-SHS of NbC and NbB2 in air from the Nb/B/C powder mixtures

Autor:	Tsuyoshi Kakuta, Takeshi Tsuchida
Rok vydání:	2007
Předmět:	Materials science Metallurgy Self-propagating high-temperature synthesis Microstructure Grinding chemistry.chemical_compound chemistry Chemical engineering X-ray crystallography Materials Chemistry Ceramics and Composites Niobium carbide Particle size Ball mill Powder mixture
Zdroj:	Journal of the European Ceramic Society. 27:527-530
ISSN:	0955-2219
Popis:	When the Nb/B/C powder mixture with different molar ratios was mechanically activated by grinding for 60–150 min in a planetary ball mill and exposed to air, it self-ignited spontaneously and the self-propagating high-temperature synthesis (SHS) of NbC and NbB2 was induced. This mechanical activation assisted SHS (MA-SHS in air process) depended strongly on the particle size of Nb metal, the mixing ratio of Nb/B/C and the weight ratio of sample to balls. The product of NbC and NbB2 with fine, homogeneous microstructure is expected to be a promising candidate as precursor of NbC–NbB2 composites.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b0c98c7af09f9e54af1d39cad837ec9f https://doi.org/10.1016/j.jeurceramsoc.2006.04.106 Zobrazit plný text záznamu Full Text from ScienceDirect