TY - JOUR
T1 - Role of TiCN addition on the characteristics of reactive spark plasma sintered ZrB2-based novel composites
AU - Sabahi Namini, Abbas
AU - Delbari, Seyed Ali
AU - Oh, Yeonju
AU - Shahedi Asl, Mehdi
AU - Le, Quyet Van
AU - Cha, Joo Hwan
AU - Lee, Sea Hoon
AU - Jang, Ho Won
AU - Han, Heung Nam
AU - Shokouhimehr, Mohammadreza
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/9/15
Y1 - 2021/9/15
N2 - The present investigation was carried out to illustrate the effect of TiCN on the microstructure development of spark plasma sintered fully dense ZrB2-based ceramics. The microstructural observations, X-ray diffraction patterns, and field emission-electron probe microanalysis revealed the presence of the (Zr,Ti)B2 and ZrCN phases in the final microstructures of the prepared composites. The advancement of a chemical reaction between TiCN and ZrB2 was suggested over the sintering process through the ZrCN and TiB2 phases formation. Although the ZrCN compound was stable during the sintering process, the generated TiB2 was dissolved into the ZrB2 matrix, forming a (Zr,Ti)B2 solid solution. The composition of this solid solution was roughly uniform in the ternary samples, thanks to the role of SiC in grain-refining, contrary to the ZrB2-TiCN composite with a heterogenous composition. Ultimately, the Vickers hardness and elastic modulus of the (Zr,Ti)B2 matrix in the ternary system were measured to be 29.3 GPa and 450.8 GPa, respectively.
AB - The present investigation was carried out to illustrate the effect of TiCN on the microstructure development of spark plasma sintered fully dense ZrB2-based ceramics. The microstructural observations, X-ray diffraction patterns, and field emission-electron probe microanalysis revealed the presence of the (Zr,Ti)B2 and ZrCN phases in the final microstructures of the prepared composites. The advancement of a chemical reaction between TiCN and ZrB2 was suggested over the sintering process through the ZrCN and TiB2 phases formation. Although the ZrCN compound was stable during the sintering process, the generated TiB2 was dissolved into the ZrB2 matrix, forming a (Zr,Ti)B2 solid solution. The composition of this solid solution was roughly uniform in the ternary samples, thanks to the role of SiC in grain-refining, contrary to the ZrB2-TiCN composite with a heterogenous composition. Ultimately, the Vickers hardness and elastic modulus of the (Zr,Ti)B2 matrix in the ternary system were measured to be 29.3 GPa and 450.8 GPa, respectively.
KW - Ceramic
KW - SiC
KW - Spark plasma sintering
KW - TiCN
KW - Transmission electron microscopy
KW - ZrB
UR - http://www.scopus.com/inward/record.url?scp=85104906922&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2021.159901
DO - 10.1016/j.jallcom.2021.159901
M3 - Article
AN - SCOPUS:85104906922
SN - 0925-8388
VL - 875
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
M1 - 159901
ER -