Silicon carbide matrix composites reinforced with two-dimensional titanium carbide – manufacturing and properties
Jarosław Woźniak , Mateusz Petrus , Tomasz Cygan , Agnieszka Jastrzębska , Tomasz Wojciechowski , Wanda Ziemkowska , Andrzej Olszyna
AbstractThis paper discusses the effect of two-dimensional Ti2C sheets addition on the microstructure and mechanical properties of silicon carbide matrix composites. The sinters were prepared by powder metallurgy processing using Spark Plasma Sintering to consolidate the powder mixtures. Moreover, the influence of the applied reinforcing phase on the fracture mechanism was also investigated. According to our knowledge, this is the first attempt to apply delaminated MXene phases as reinforcing phases of ceramic matrix composites. The delaminated MXene phases were characterized using a high-resolution transmission microscope (HRTEM) and X-ray photoelectron spectroscopy (XPS). Significant improvement of the fracture toughness and hardness for the composites reinforced with 1.5 wt% 2D Ti2C compared to the reference sample were observed. Moreover, two main mechanisms of crack propagations (crack deflection and bridging) were noticed.
|Journal series||Ceramics International, ISSN 0272-8842, (A 40 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||Ceramic-matrix composites (CMCs); Fracture toughness; Microstructures; Sintering|
|Score||= 40.0, 11-06-2019, ArticleFromJournal|
|Publication indicators||: 2016 = 1.304; : 2017 = 3.057 (2) - 2017=2.882 (5)|
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