Fabrication of bioinspired helical-structured SiO2 porous ceramics via magnetic freeze casting.

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Title: Fabrication of bioinspired helical-structured SiO2 porous ceramics via magnetic freeze casting.
Authors: Lin, Jiong-Zhao1 (AUTHOR), Zhang, Chuan-Zheng1 (AUTHOR), Shaga, Alateng1,2,3 (AUTHOR) altsg@jlju.edu.cn, Chen, Guan-Hong1 (AUTHOR), Han, Cheng-Hao2 (AUTHOR), Wang, Huan3 (AUTHOR), Galdamsambuu, Saran4 (AUTHOR), Zhang, Xue-Jian1 (AUTHOR) zxj_0620@163.com
Source: Ceramics International. May2026:Part A, Vol. 52 Issue 12, p19349-19359. 11p.
Subjects: Helical structure, Compressive strength, Oxide ceramics, Magnetic fields, Biomimetic materials, Mechanical behavior of materials, Freezing
Abstract: Traditional freeze-cast SiO 2 porous ceramics have monotonous pore structures and insufficient compressive strength, limiting engineering applications. This study proposes a rotating magnetic field-assisted freeze-casting strategy, using SiO 2 as matrix and Fe 3 O 4 as magnetic alignment agent, to controllably fabricate bioinspired helical-structured porous ceramics. Effects of magnetic field type, intensity (46, 85, 138 mT) and rotational speed (0.05–0.15 r/min) were investigated. The results show that SiO 2 porous ceramics show disordered structure and low compressive strength (10 ± 2 MPa) without magnetic field. Static/rotating magnetic fields optimize their structure and mechanical properties; compressive strength peaks at 30 ± 3 MPa at 85 mT and 0.1 r/min, with Young's modulus rising with field strength. The mechanism is dynamic balance between magnetic torque and viscous resistance torque. This study pioneers the structure, supporting porous ceramic design and compressive properties optimization. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: Fabrication of bioinspired helical-structured SiO2 porous ceramics via magnetic freeze casting.
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  Data: <searchLink fieldCode="AR" term="%22Lin%2C+Jiong-Zhao%22">Lin, Jiong-Zhao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Chuan-Zheng%22">Zhang, Chuan-Zheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shaga%2C+Alateng%22">Shaga, Alateng</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> altsg@jlju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Guan-Hong%22">Chen, Guan-Hong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Han%2C+Cheng-Hao%22">Han, Cheng-Hao</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Huan%22">Wang, Huan</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Galdamsambuu%2C+Saran%22">Galdamsambuu, Saran</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Xue-Jian%22">Zhang, Xue-Jian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zxj_0620@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. May2026:Part A, Vol. 52 Issue 12, p19349-19359. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Helical+structure%22">Helical structure</searchLink><br /><searchLink fieldCode="DE" term="%22Compressive+strength%22">Compressive strength</searchLink><br /><searchLink fieldCode="DE" term="%22Oxide+ceramics%22">Oxide ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+fields%22">Magnetic fields</searchLink><br /><searchLink fieldCode="DE" term="%22Biomimetic+materials%22">Biomimetic materials</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Freezing%22">Freezing</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Traditional freeze-cast SiO 2 porous ceramics have monotonous pore structures and insufficient compressive strength, limiting engineering applications. This study proposes a rotating magnetic field-assisted freeze-casting strategy, using SiO 2 as matrix and Fe 3 O 4 as magnetic alignment agent, to controllably fabricate bioinspired helical-structured porous ceramics. Effects of magnetic field type, intensity (46, 85, 138 mT) and rotational speed (0.05–0.15 r/min) were investigated. The results show that SiO 2 porous ceramics show disordered structure and low compressive strength (10 ± 2 MPa) without magnetic field. Static/rotating magnetic fields optimize their structure and mechanical properties; compressive strength peaks at 30 ± 3 MPa at 85 mT and 0.1 r/min, with Young's modulus rising with field strength. The mechanism is dynamic balance between magnetic torque and viscous resistance torque. This study pioneers the structure, supporting porous ceramic design and compressive properties optimization. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.ceramint.2026.03.032
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        Text: English
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        StartPage: 19349
    Subjects:
      – SubjectFull: Helical structure
        Type: general
      – SubjectFull: Compressive strength
        Type: general
      – SubjectFull: Oxide ceramics
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      – SubjectFull: Magnetic fields
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      – SubjectFull: Biomimetic materials
        Type: general
      – SubjectFull: Mechanical behavior of materials
        Type: general
      – SubjectFull: Freezing
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      – TitleFull: Fabrication of bioinspired helical-structured SiO2 porous ceramics via magnetic freeze casting.
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              M: 05
              Text: May2026:Part A
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              Y: 2026
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