TY - JOUR
T1 - Spark plasma sintering of TiB2-based ceramics with Ti3AlC2
AU - Nayebi, Behzad
AU - Shahedi Asl, Mehdi
AU - Akhlaghi, Maryam
AU - Ahmadi, Zohre
AU - Tayebifard, Seyed Ali
AU - Salahi, Esmaeil
AU - Shokouhimehr, Mohammadreza
AU - Mohammadi, Mohsen
N1 - Publisher Copyright:
© 2021 Elsevier Ltd and Techna Group S.r.l.
PY - 2021/5/1
Y1 - 2021/5/1
N2 - A TiB2–Ti3AlC2 ceramic was manufactured by spark plasma sintering at 1900 °C temperature for 7 min soaking time under 30 MPa biaxial pressure. The role of Ti3AlC2 additive on the microstructure development, densification behavior, phase evolution, and hardness of the ceramic composite were studied. The phase characterization and microstructural investigations unveiled that the Ti3AlC2 MAX phase decomposes at the initial stages of the sintering. The in-situ formed phases, induced by the decomposition of Ti3AlC2 additive, were identified and scrutinized by XRD and FESEM/EDS techniques as well as thermodynamics principles. The sintered TiB2–Ti3AlC2 ceramic approached a near full density of ~99% and a hardness of ~28 GPa. The densification mechanism and sintering phenomena were discussed and graphically illustrated.
AB - A TiB2–Ti3AlC2 ceramic was manufactured by spark plasma sintering at 1900 °C temperature for 7 min soaking time under 30 MPa biaxial pressure. The role of Ti3AlC2 additive on the microstructure development, densification behavior, phase evolution, and hardness of the ceramic composite were studied. The phase characterization and microstructural investigations unveiled that the Ti3AlC2 MAX phase decomposes at the initial stages of the sintering. The in-situ formed phases, induced by the decomposition of Ti3AlC2 additive, were identified and scrutinized by XRD and FESEM/EDS techniques as well as thermodynamics principles. The sintered TiB2–Ti3AlC2 ceramic approached a near full density of ~99% and a hardness of ~28 GPa. The densification mechanism and sintering phenomena were discussed and graphically illustrated.
KW - Microstructure
KW - Spark plasma sintering
KW - TiAlC MAX phase
KW - Titanium diboride
UR - http://www.scopus.com/inward/record.url?scp=85099632464&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2021.01.033
DO - 10.1016/j.ceramint.2021.01.033
M3 - Article
AN - SCOPUS:85099632464
SN - 0272-8842
VL - 47
SP - 11929
EP - 11934
JO - Ceramics International
JF - Ceramics International
IS - 9
ER -