Wettability, adhesive performance and structural evolution of an environment-friendly modified silicate binder for foundry moulding and coremaking

Li, Jinpeng; Zhang, Huarui; Du, Ming; Chen, Jiulong; Xiang, Ting; Zhang, Hu; Cheng, Ying

doi:10.1016/j.ceramint.2023.11.094

Ceramics International

2024

DOI: 10.1016/j.ceramint.2023.11.094

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Wettability, adhesive performance and structural evolution of an environment-friendly modified silicate binder for foundry moulding and coremaking

Jinpeng Li,

Huarui Zhang,

Ming Du

et al.

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Cited by 2 publications

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An investigation of ceramic shell thickness uniformity and its impact on precision in turbine blade investment casting

Dong,

Wang,

Cui

et al. 2024

Journal of Manufacturing Processes

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An investigation of ceramic shell thickness uniformity and its impact on precision in turbine blade investment casting

Dong,

Wang,

Cui

et al. 2024

Journal of Manufacturing Processes

View full text Add to dashboard Cite

Effect of Hydrophobic Fumed Silica on Bending Strength of Sodium Silicate-Bonded Sand Cores

Li,

Zhang,

Chen

et al. 2024

Materials

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Inorganic sand cores involving sodium silicate binder and microsilica have environmental advantages during the casting process of aluminum alloy. Nevertheless, the bending strength of sodium silicate-bonded sand (SSBS) needs to be further improved. In this research, the effect of hydrophobic fumed silica on the bending strength of sand cores was studied. The experimental results revealed that hydrophobic fumed silica with the addition of 0.050 wt.% can be adopted as an optimal modifier to enhance the bending strength of SSBS. According to scanning electron microscope and spectroscopy techniques, dense bonding bridges and a complex Si–O–Si network containing specific silicon molecules with a silicon atom bonded to three other silicon atoms contribute to the excellent bending strength, with a 53.1% increase in cold strength (24 h) compared to a commercial sample of a modified sand core. Meanwhile, the newly formed Si–O–Al chemical bond plays a crucial role in increasing the bending strength of sand cores.

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Wettability, adhesive performance and structural evolution of an environment-friendly modified silicate binder for foundry moulding and coremaking

Cited by 2 publications

References 33 publications

An investigation of ceramic shell thickness uniformity and its impact on precision in turbine blade investment casting

An investigation of ceramic shell thickness uniformity and its impact on precision in turbine blade investment casting

Effect of Hydrophobic Fumed Silica on Bending Strength of Sodium Silicate-Bonded Sand Cores

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