@article{Yu2023, 
author = {Ye Yu and Shuai Fu and Detian Wan and Yiwang Bao and Longsheng Chu and Qingguo Feng and Chunfeng Hu},
title = {Hot forging Nb4AlC3 ceramics with enhanced properties},
year = {2023},
journal = {Journal of Advanced Ceramics},
volume = {12},
number = {11},
pages = {2032-2040},
keywords = {microstructure, anisotropy, texture, properties, Nb4AlC3},
url = {https://www.sciopen.com/article/10.26599/JAC.2023.9220805},
doi = {10.26599/JAC.2023.9220805},
abstract = {Textured Nb4AlC3 ceramics were rapidly and efficiently prepared by hot forging through spark plasma sintering (SPS). The longitudinal compression ratio of textured Nb4AlC3 ceramics was −78.3%, and the lateral expansion ratio was 32.1%. The grains grew preferentially along the direction perpendicular to the c-axis, forming the texture microstructure. The Lotgering orientation factor f(00l) was calculated to be 0.63. The thermal conductivity of textured Nb4AlC3 ceramics along the c-axis direction (11.23 W·m−1·K−1) (25 ℃) was lower than that of untextured ceramics (13.75 W·m−1·K−1) (25 ℃). The electrical conductivity perpendicular to the c-axis direction reached 4.37×106 S·m−1 at room temperature. The ordered layered grains increased the resistance of crack propagation, resulting in a higher fracture toughness parallel to the c-axis direction (9.41 MPa·m1/2), which was higher than that of untextured ceramics (6.88 MPa·m1/2). The Vickers hardness tested at 10 N on the texture top surface (7.18 GPa) was higher than that on the texture side surface (6.45 GPa).}
}