Mechanical properties of large-sized thin architectural ceramic plate enhanced by alumina fibres and in situ mullite whiskers

Zhong, Xinzi; Cao, Liyun; Huang, Jianfeng; Liu, Yijun; Ouyang, Haibo; Wang, Qinggang

doi:10.2298/pac2202183z

Cited by 5 publications

(1 citation statement)

References 27 publications

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“…Various strategies have been proposed to enhance the mechanical properties of these ceramics, such as adding fibers and reinforcement phases, but most are too expensive and challenging to integrate into ceramic industries. [7][8][9] Zhong et al 10 demonstrated the effective improvement of mechanical properties for ceramic tiles using in situ mullite whiskers. Xiao et al 11 found that in situ mullite whiskers could be generated by strictly controlling the raw material ratio, making them suitable for preparing high-strength ceramic tiles in industrial manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Formula optimization and thermodynamic evolution of high-performance large-sized porcelain thin ceramic tiles mainly enhanced by contrivable multi-phases

Zhong

Cao

Huang

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Owing to the high expenses and numerous potential avenues for formula research in ceramic production, obtaining cost-effective and high-quality ceramic formulas for high-performance ceramics poses significant challenges. To address this issue, a flux formula optimization procedure is proposed to develop the predictive ceramic formula P18, which allows precise control of the Al/Si ratio and is compatible with standard manufacturing processes. This cost-effective method enables the visual examination of ceramics’ physical, mechanical and thermodynamic properties. It is found that sintering temperature plays a crucial role in phase and microstructure evolution by classical phenomenological kinetic theory. Moreover, the sintered sample P18 exhibits remarkable mechanical performance, with a strength of 96.82 ± 2.0 MPa and fracture toughness of 1.89 ± 0.02 MPa·m1/2. These outstanding properties can be attributed to the reinforcing effects of multiple phases, such as high-strength corundum and in situ mullite whiskers. The mechanical mechanisms of the resulting ceramic tiles include particle reinforcement, microcrack deflection, intergranular and transgranular fracture, and in situ mullite whisker bridge pull-out, which collectively contribute to increase energy consumption per unit length, thus reducing the risk of brittle fractures.

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