Effect of ZrO2 on sintering behavior and properties of h-BN/ZrO2 composites by spark plasma sintering

Zhang, Fan; Chen, Mao; Wang, Hailong; Shao, Gang; Qi, Yongshun; Ma, Chao; Fan, Bingbing; Pian, Xiaoxuan; Zhang, Rui; Li, Hongxia; Chen, Yongqiang

doi:10.1016/j.ceramint.2022.08.077

Cited by 10 publications

(2 citation statements)

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“…Recently, we have reported the synthesis of zircon ceramics by an arc plasma sintering (APS) technology [3], i.e., a sintering method that utilizes plasma to densify previously pressed zircon powders. The working principle of the APS was illustrated schematically by Bandriyana et al [4].…”

Section: Introductionmentioning

confidence: 99%

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Ultra-dense (Bi, V, B)-oxide-added zircon ceramics fabricated by liquid-phase assisted spark plasma sintering (SPS)

Musyarofah

Sari

Hilmi

et al. 2023

Mater. Res. Express

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Ultra-high-density zircon (ZrSiO4) ceramics were prepared using the spark plasma sintering (SPS) technique of zircon nanopowder with addition of three different sintering agents, i.e., Bi2O3, V2O5 and B2O3. The effect of each agent and the SPS parameters (temperature and pressure) on phase composition, microstructure, thermal and mechanical properties of the ceramics were evaluated. The identified crystalline phases of the sintered ceramics were zircon and monoclinic zirconia. The addition of sintering agent affects the structure of zircon ceramics, i.e. the lattice parameter and the crystallite size. The sintered ceramics reach relative densities up to 99.9% of the theoretical one when V2O5 or B2O3 was added. The densification of the zircon ceramics was confirmed by SEM observations. We found the ceramics exhibited thermal conductivity ranging from 0.39 to 0.61 Wm−1K−1 at 373 K while the coefficient of thermal expansion was 2.3-4.0×10-6 /○C and the Vickers hardness was obtained to be 9.52-12.66 GPa. The Young’s (E), bulk (B), and shear (G) moduli, Poisson’s ratio ν, Pugh’s ratio B/G, and the ratio of H_V^3/E^*2 of the ceramics are in a range of 240-288 GPa, 207-267 GPa, 91-109 GPa, 1.95-2.45, and 0.011-0.019 respectively. In general, we found that high-density, quasi-ductile zircon ceramics can be synthesized at a low sintering temperature and short holding time.

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Section: Introductionmentioning

confidence: 99%

“…The working principle of the APS was illustrated schematically by Bandriyana et al [4]. Unlike conventional furnaces, the APS uses a shorter sintering time of 8 min to produce zircon ceramics with a maximum bulk density of 93.5% [3]. Unfortunately, the ceramics have non-homogenous characteristics, i.e.…”

Section: Introductionmentioning

confidence: 99%