Microstructure, mechanical, and cutting performance properties of B4C and SiC reinforced sandwich composite segments

Islak, Serkan; Çelik, Ertuğrul; Erol, Mümtaz; Houssain, Hasaneen

doi:10.1016/j.ceramint.2024.08.205

Ceramics International

2024

DOI: 10.1016/j.ceramint.2024.08.205

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Microstructure, mechanical, and cutting performance properties of B4C and SiC reinforced sandwich composite segments

Serkan Islak,

Ertuğrul Çelik,

Mümtaz Erol

et al.

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Synergistically reinforced boron carbide ceramics by introduction of Fe and BN

Wang,

Du,

Xing

et al. 2024

Int J Applied Ceramic Tech

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Boron carbide (B4C)‐FeB ceramics and B4C‐FeB‐BN ceramics are prepared via hot pressing with B4C plus different contents of iron (Fe) and B4C plus 5 wt% Fe and different contents of boron nitride (BN), respectively. The phase composition, microstructure, and mechanical properties of the prepared ceramics are studied in detail. The synergistic effect of Fe and BN on hot‐pressed B4C ceramics is discussed. Results indicate that Fe can react with B4C to form FeB, and enhance the densification and mechanical property of B4C ceramics. 5 wt% Fe is the optimal addition amount. Fe and BN can synergistically reinforce B4C ceramics. The ceramics fabricated with B4C‐5 wt% Fe‐4 wt% BN have the optimal comprehensive performance, of which the relative density, hardness, flexural strength, and fracture toughness reach 98.5%, 32.74 GPa, 668.92 MPa, and 4.09 MPa·m1/2, respectively, higher than those of the ceramics fabricated with B4C or with B4C plus Fe. The liquid formed by Fe during sintering enhances the dispersion of BN, which is beneficial to realizing the function of pinning grain boundary and pulling out. The toughening phenomena include intergranular and transgranular fracture, particle pulling out, and bridging.

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Synergistically reinforced boron carbide ceramics by introduction of Fe and BN

Wang,

Du,

Xing

et al. 2024

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

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Microstructure, mechanical, and cutting performance properties of B4C and SiC reinforced sandwich composite segments

Cited by 1 publication

References 34 publications

Synergistically reinforced boron carbide ceramics by introduction of Fe and BN

Synergistically reinforced boron carbide ceramics by introduction of Fe and BN

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