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4D printing method based on rare earth orthoferrite ceramic and metamaterial
The invention discloses a 4D printing method based on rare earth orthoferrite ceramic and a metamaterial. The method comprises the following steps: ball-milling and mixing iron oxide powder and rare earth oxide powder, drying and pre-sintering to obtain rare earth orthoferrite ceramic; mixing the rare earth orthoferrite ceramic with a bonding solution, and then carrying out 3D printing and sintering to obtain a 4D printed metamaterial; a terahertz time domain photoelectric system is used for analyzing the 4D printed metamaterial, terahertz electromagnetic resonance response is excited, and the size, temperature or azimuth angle of the 4D printed metamaterial is adjusted to achieve regulation and control of terahertz response. The terahertz wave dielectric ceramic obtained through the method is low in loss, the problem that the working frequency of existing traditional ferrite ceramic is difficult to improve to the terahertz wave band can be effectively solved, and a 4D printed metamaterial with terahertz wave response is obtained.
本发明公开了一种基于稀土正铁氧体陶瓷的4D打印方法及超构材料。该方法包括：将氧化铁粉体与稀土氧化物粉体球磨混合，干燥后预烧，得到稀土正铁氧体陶瓷；将稀土正铁氧体陶瓷与粘合液混合后3D打印，烧结，得到4D打印的超构材料；利用太赫兹时域光电系统对4D打印的超构材料进行分析，激发出太赫兹电磁谐振响应，并调整4D打印的超构材料的尺寸、温度或方位角以实现对太赫兹响应的调控。通过该方法得到的太赫兹波介质陶瓷损耗低，可以有效地解决现有传统铁氧体陶瓷的工作频率难以提高至太赫兹波段的难题，得到具有太赫兹波响应的4D打印的超构材料。
4D printing method based on rare earth orthoferrite ceramic and metamaterial
The invention discloses a 4D printing method based on rare earth orthoferrite ceramic and a metamaterial. The method comprises the following steps: ball-milling and mixing iron oxide powder and rare earth oxide powder, drying and pre-sintering to obtain rare earth orthoferrite ceramic; mixing the rare earth orthoferrite ceramic with a bonding solution, and then carrying out 3D printing and sintering to obtain a 4D printed metamaterial; a terahertz time domain photoelectric system is used for analyzing the 4D printed metamaterial, terahertz electromagnetic resonance response is excited, and the size, temperature or azimuth angle of the 4D printed metamaterial is adjusted to achieve regulation and control of terahertz response. The terahertz wave dielectric ceramic obtained through the method is low in loss, the problem that the working frequency of existing traditional ferrite ceramic is difficult to improve to the terahertz wave band can be effectively solved, and a 4D printed metamaterial with terahertz wave response is obtained.
本发明公开了一种基于稀土正铁氧体陶瓷的4D打印方法及超构材料。该方法包括：将氧化铁粉体与稀土氧化物粉体球磨混合，干燥后预烧，得到稀土正铁氧体陶瓷；将稀土正铁氧体陶瓷与粘合液混合后3D打印，烧结，得到4D打印的超构材料；利用太赫兹时域光电系统对4D打印的超构材料进行分析，激发出太赫兹电磁谐振响应，并调整4D打印的超构材料的尺寸、温度或方位角以实现对太赫兹响应的调控。通过该方法得到的太赫兹波介质陶瓷损耗低，可以有效地解决现有传统铁氧体陶瓷的工作频率难以提高至太赫兹波段的难题，得到具有太赫兹波响应的4D打印的超构材料。
4D printing method based on rare earth orthoferrite ceramic and metamaterial
一种基于稀土正铁氧体陶瓷的4D打印方法及超构材料
ZENG XINXI (author) / GUO YUNLONG (author) / ZHANG FANZHAO (author) / CAO CHONG (author)
2022-08-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
/
H01F
MAGNETS
,
Magnete
Hydrolysis of Sodium Orthoferrite [ - NaFeO~2]
| British Library Online Contents | 1993
Multiferroic behavior of lanthanum orthoferrite (LaFeO3)
| British Library Online Contents | 2010