Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Textured piezoelectric ceramic and preparation method thereof
The invention discloses textured piezoelectric ceramic and a preparation method thereof, and belongs to the technical field of preparation and processing of piezoelectric materials. The preparation method comprises the following steps: uniformly mixing flaky BaTiO3 powder, piezoelectric ceramic powder, an adhesive and a sintering aid to obtain piezoelectric ceramic composite powder; the piezoelectric ceramic composite powder is subjected to 3D printing treatment, a magnetic field is arranged in the 3D printing treatment process, and a piezoelectric ceramic biscuit is obtained; and degreasing and sintering the piezoelectric ceramic biscuit to obtain the textured piezoelectric ceramic. According to the method, the magnetic field driving force is introduced in the 3D printing process, and the textured piezoelectric ceramic with high texture degree and relatively high piezoelectric property is obtained by utilizing the directional driving effect of the magnetic field driving force on the weakly magnetic flaky BaTiO3 powder and the ordered arrangement effect of the transverse shearing force of a powder spreading roller shaft on the surface flaky BaTiO3 powder in 3D printing.
本发明公开了一种织构化压电陶瓷及其制备方法，属于压电材料制备与加工技术领域。该制备方法包括如下步骤：将片状BaTiO3粉体、压电陶瓷粉体、粘接剂和烧结助剂混匀，得到压电陶瓷复合粉末；将压电陶瓷复合粉末进行3D打印处理，并且在3D打印处理的过程中设有磁场，得到压电陶瓷素坯；对压电陶瓷素坯进行脱脂和烧结处理，得到织构化压电陶瓷。本发明通过在3D打印过程中引入磁场驱动力，利用磁场驱动力对弱磁性片状BaTiO3粉体的定向驱动效果以及3D打印中铺粉辊轴的横向剪切力对表层片状BaTiO3粉体的有序排列作用，得到织构度高、压电性能较高的织构化压电陶瓷。
Textured piezoelectric ceramic and preparation method thereof
The invention discloses textured piezoelectric ceramic and a preparation method thereof, and belongs to the technical field of preparation and processing of piezoelectric materials. The preparation method comprises the following steps: uniformly mixing flaky BaTiO3 powder, piezoelectric ceramic powder, an adhesive and a sintering aid to obtain piezoelectric ceramic composite powder; the piezoelectric ceramic composite powder is subjected to 3D printing treatment, a magnetic field is arranged in the 3D printing treatment process, and a piezoelectric ceramic biscuit is obtained; and degreasing and sintering the piezoelectric ceramic biscuit to obtain the textured piezoelectric ceramic. According to the method, the magnetic field driving force is introduced in the 3D printing process, and the textured piezoelectric ceramic with high texture degree and relatively high piezoelectric property is obtained by utilizing the directional driving effect of the magnetic field driving force on the weakly magnetic flaky BaTiO3 powder and the ordered arrangement effect of the transverse shearing force of a powder spreading roller shaft on the surface flaky BaTiO3 powder in 3D printing.
本发明公开了一种织构化压电陶瓷及其制备方法，属于压电材料制备与加工技术领域。该制备方法包括如下步骤：将片状BaTiO3粉体、压电陶瓷粉体、粘接剂和烧结助剂混匀，得到压电陶瓷复合粉末；将压电陶瓷复合粉末进行3D打印处理，并且在3D打印处理的过程中设有磁场，得到压电陶瓷素坯；对压电陶瓷素坯进行脱脂和烧结处理，得到织构化压电陶瓷。本发明通过在3D打印过程中引入磁场驱动力，利用磁场驱动力对弱磁性片状BaTiO3粉体的定向驱动效果以及3D打印中铺粉辊轴的横向剪切力对表层片状BaTiO3粉体的有序排列作用，得到织构度高、压电性能较高的织构化压电陶瓷。
Textured piezoelectric ceramic and preparation method thereof
一种织构化压电陶瓷及其制备方法
LIU KAI (Autor:in) / HE JUNCHAO (Autor:in) / LI TIANYANG (Autor:in) / SUN HUAJUN (Autor:in) / HUANG SHANGYU (Autor:in)
19.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
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
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