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Fabrication of Paper‐Derived Ti 3 SiC 2 ‐Based Materials by Spark Plasma Sintering
Author(s) -
Kashkarov Egor B.,
Syrtanov Maxim S.,
Sedanova Elizaveta P.,
Ivashutenko Alexander S.,
Lider Andrey M.,
Travitzky Nahum
Publication year - 2020
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.202000136
Subject(s) - materials science , spark plasma sintering , sintering , microstructure , ceramic , composite material , scanning electron microscope , flexural strength , fabrication , phase (matter) , composite number , medicine , chemistry , alternative medicine , organic chemistry , pathology
Novel paper‐derived Ti 3 SiC 2 ‐based ceramics are fabricated by spark plasma sintering (SPS). A Ti 3 SiC 2 ‐loaded preceramic article is used as feedstock. The sintering temperature and pressure are 1100–1200 °C and 20–50 MPa, respectively. The influence of sintering parameters on phase composition and microstructure is analyzed by X‐ray diffraction (XRD) and scanning electron microscopy, respectively. In addition, energy‐dispersive X‐ray spectroscopy is conducted to analyze the distribution of elements and the phase arrangement depending on the sintering temperature. XRD analysis of the composites sintered at 1100 and 1200 °C shows the presence of Ti 3 SiC 2 , TiC, and TiSi 2 phases while the content of Ti 3 SiC 2 phase decreases with increasing temperature. It is shown that an increase in both temperature and pressure lead to higher densification of the composites. Elongated pores are observed in the composites, which are formed as a result of cellulose fiber decomposition during the sintering process. The maximal value of the flexural strength of 300 MPa is measured for the composite with the highest density. The influence of SPS parameters on the formation of phase composition, microstructure, and mechanical properties of the paper‐derived Ti 3 SiC 2 ‐based ceramics is discussed.