Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Manufacturing method of low-thermal-expansion high-modulus ceramic thermal metamaterial
The invention relates to a manufacturing method of a low-thermal-expansion high-modulus ceramic thermal metamaterial. The manufacturing method comprises the following steps: designing structures withdifferent array units, extremely small curved surfaces and negative Poisson ratios by using three-dimensional design software SOLIDWORKS; performing 3D printing to obtain a printed blank by using ceramic photosensitive resin as printing slurry; carrying out chemical vapor deposition on the sintered ceramic material for one time and two times; And introducing SiC whiskers into the sample depositedwith the primary SiC matrix through a cracking process. The difficulty of metamaterial structure manufacturing is large-scale microstructure manufacturing and precision control; 3D printing has the advantages of being high in forming speed, high in precision and easy to form complex profile components; and a brand-new and flexible scheme is provided for metamaterial machining through the 3D printing technology. Printing parameters, a sintering process, a deposition process and the like involved in the invention are optimized through repeated tests, so that the printing speed of the structure can be effectively ensured; deformation after sintering is avoided; and the content of silicon carbide introduced by deposition is ensured.
本发明涉及一种低热膨胀高模量的陶瓷热学超材料制备方法，利用三维设计软件SOLIDWORKS设计不同阵列单元、极小曲面、负泊松比的结构，采用3D打印，打印浆料为陶瓷光敏树脂，获得打印胚体；对烧结过的陶瓷材料进行化学气相沉积，沉积次数为1次和2次；沉积一次SiC基体后的试样再通过裂解工艺引入SiC晶须。超材料的结构制造的难点在于大规模微结构的制造和精度控制，而3D打印具备成型速度快、精度高、以及复杂型面构件易成型的优点，3D打印技术为超材料的加工提供了一种全新的、灵活的方案。本发明中涉及到的打印参数、烧结工艺、沉积工艺等均经过反复试验优化，可以有效保证结构的打印速度，避免烧结后发生变形，确保沉积引入碳化硅的含量。
Manufacturing method of low-thermal-expansion high-modulus ceramic thermal metamaterial
The invention relates to a manufacturing method of a low-thermal-expansion high-modulus ceramic thermal metamaterial. The manufacturing method comprises the following steps: designing structures withdifferent array units, extremely small curved surfaces and negative Poisson ratios by using three-dimensional design software SOLIDWORKS; performing 3D printing to obtain a printed blank by using ceramic photosensitive resin as printing slurry; carrying out chemical vapor deposition on the sintered ceramic material for one time and two times; And introducing SiC whiskers into the sample depositedwith the primary SiC matrix through a cracking process. The difficulty of metamaterial structure manufacturing is large-scale microstructure manufacturing and precision control; 3D printing has the advantages of being high in forming speed, high in precision and easy to form complex profile components; and a brand-new and flexible scheme is provided for metamaterial machining through the 3D printing technology. Printing parameters, a sintering process, a deposition process and the like involved in the invention are optimized through repeated tests, so that the printing speed of the structure can be effectively ensured; deformation after sintering is avoided; and the content of silicon carbide introduced by deposition is ensured.
本发明涉及一种低热膨胀高模量的陶瓷热学超材料制备方法，利用三维设计软件SOLIDWORKS设计不同阵列单元、极小曲面、负泊松比的结构，采用3D打印，打印浆料为陶瓷光敏树脂，获得打印胚体；对烧结过的陶瓷材料进行化学气相沉积，沉积次数为1次和2次；沉积一次SiC基体后的试样再通过裂解工艺引入SiC晶须。超材料的结构制造的难点在于大规模微结构的制造和精度控制，而3D打印具备成型速度快、精度高、以及复杂型面构件易成型的优点，3D打印技术为超材料的加工提供了一种全新的、灵活的方案。本发明中涉及到的打印参数、烧结工艺、沉积工艺等均经过反复试验优化，可以有效保证结构的打印速度，避免烧结后发生变形，确保沉积引入碳化硅的含量。
Manufacturing method of low-thermal-expansion high-modulus ceramic thermal metamaterial
一种低热膨胀高模量的陶瓷热学超材料制备方法
MEI HUI (Autor:in) / TAN YUANFU (Autor:in) / CHENG LAIFEI (Autor:in)
29.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
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
/
C04B
Kalk
,
LIME
/
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
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