The invention relates to structure and function integrated high-purity beta-silicon carbide and a preparation method and application thereof, and belongs to the technical field of silicon carbide material additive manufacturing. The preparation method comprises the following steps that a three-dimensional structure model of target beta-silicon carbide is constructed according to actual application requirements, a silicon carbide thin layer geometric model is obtained after slicing, then beta-silicon carbide powder serves as a raw material, a solid material corresponding to the geometric model is printed through a binder spraying additive manufacturing process, and the solid material is obtained. And performing densification treatment on the solid material by using a chemical vapor infiltration method, repeating the additive manufacturing and densification processes until a sufficient number of densified silicon carbide thin-layer materials are obtained, and performing densification treatment once after precise assembly. Experimental results show that the prepared final product is beta-phase high-purity silicon carbide and integrates structure and functions.
本发明涉及结构功能一体化的高纯度β‑碳化硅及其制备方法和应用,属于碳化硅材料增材制造技术领域。制备方法包括以下步骤:根据实际应用需求构建目标β‑碳化硅的三维结构模型,切片后获得碳化硅薄层几何模型,然后以β‑碳化硅粉末为原材料,利用粘结剂喷射增材制造工艺打印出该几何模型对应的实体材料,再利用化学气相渗透法对该实体材料进行致密化处理,重复增材制造和致密化过程直至获得足够数量的致密化碳化硅薄层材料,精密组装后再进行一次致密化处理即可。实验结果表明,制备的终产物为β相的高纯碳化硅且集结构功能于一体。
Structure and function integrated high-purity beta-silicon carbide as well as preparation method and application thereof
结构功能一体化的高纯度β-碳化硅及其制备方法和应用
2024-04-12
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 / B64G Raumfahrt , COSMONAUTICS / H05K PRINTED CIRCUITS , Gedruckte Schaltungen |
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