Formation mechanism for synthesis of Ti3SnC2 MAX phase

The formation mechanism of Ti3SnC2 was evaluated in the present work. A stoichiometric ratio of a Ti-Sn-C powder mixture was prepared and milled for 50 h. To synthesize and detect intermediate reactions, a 50 h milled sample was thermally analyzed by STA. XRD instrument was utilized to detect phases...

Full description

Saved in:
Bibliographic Details
Published inMaterials today communications Vol. 25; p. 101623
Main Authors Fattahi, Mehdi, Zarezadeh Mehrizi, Majid
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2020
Subjects
MAX phase
reaction mechanism
STA
Ti3SnC2
XRD
STA
MAX phase
XRD
reaction mechanism
Ti3SnC2
Online AccessGet full text

Cover

More Information
Summary:The formation mechanism of Ti3SnC2 was evaluated in the present work. A stoichiometric ratio of a Ti-Sn-C powder mixture was prepared and milled for 50 h. To synthesize and detect intermediate reactions, a 50 h milled sample was thermally analyzed by STA. XRD instrument was utilized to detect phases of powder samples and the microstructure of the final product was obtained by SEM. The results showed that only Ti6Sn5 and Ti5Sn3 with Fe3Sn2 formed after 50 h milling, and no peaks related to MAX phases were found. To detect the reaction mechanism, the 50 h milled powder after STA analysis was characterized by XRD. Many intermediate reactions such as TixSny, TiC, and Ti2SnC formations took place. The melting of FexSny during STA analysis promoted the Ti3SnC2 formation. These results confirmed that Ti3SnC2 formation is not happened by a single reaction and many intermediate phases must be formed and Ti3SnC2 was synthesized after 50 h ball milling and thermally treated by STA analysis to 1400 °C.
ISSN:2352-4928
2352-4928
DOI:10.1016/j.mtcomm.2020.101623