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Bionic human bone based on 3D printing and manufacturing method thereof
The invention discloses a bionic human bone based on 3D printing and a manufacturing method thereof, and relates to the technical field of biological ceramic human bone materials. According to the corresponding relation between the proportion of A-type silicon nitride and B-type silicon nitride contained in the ceramic raw materials of the first-layer ceramic piece and the shrinkage rate, the shrinkage rate of the second-layer ceramic piece is matched, and the bionic human bone with the porosity and the bending strength changing in a gradient mode can be manufactured; cracks and bending of a connection interface caused by mismatching of shrinkage rates of the compact bone and the cancellous bone can be effectively avoided; according to the present invention, by using the different particle sizes of the single powder and adopting the mode of compounding the A-type silicon nitride and the B-type silicon nitride, the sample shrinkage rate and the bending strength after sintering can be adjusted, and when the ratio of the A-type silicon nitride to the B-type silicon nitride is a certain value, the bending strength of the sintered sample achieves the peak value;.
本发明公开了一种基于3D打印的仿生人骨及其制造方法，涉及生物陶瓷人体骨骼材料技术领域。本发明根据第一层陶瓷件的陶瓷原料中含有的A型氮化硅与B型氮化硅的比例与收缩率的对应关系，匹配第二层陶瓷件的收缩率，可以造出孔隙率和抗弯强度呈梯度变化的仿生人骨；能够有效地避免了密质骨和松质骨由于收缩率不匹配导致的连接界面出现裂纹和弯曲；本发明利用单一粉体的不同粒径，采用A型氮化硅与B型氮化硅相复合的方式，可以调整样品收缩率以及烧结后的抗弯强度，当它们之间的配比为某一值时，烧结后样品的抗弯强度达到峰值。
Bionic human bone based on 3D printing and manufacturing method thereof
The invention discloses a bionic human bone based on 3D printing and a manufacturing method thereof, and relates to the technical field of biological ceramic human bone materials. According to the corresponding relation between the proportion of A-type silicon nitride and B-type silicon nitride contained in the ceramic raw materials of the first-layer ceramic piece and the shrinkage rate, the shrinkage rate of the second-layer ceramic piece is matched, and the bionic human bone with the porosity and the bending strength changing in a gradient mode can be manufactured; cracks and bending of a connection interface caused by mismatching of shrinkage rates of the compact bone and the cancellous bone can be effectively avoided; according to the present invention, by using the different particle sizes of the single powder and adopting the mode of compounding the A-type silicon nitride and the B-type silicon nitride, the sample shrinkage rate and the bending strength after sintering can be adjusted, and when the ratio of the A-type silicon nitride to the B-type silicon nitride is a certain value, the bending strength of the sintered sample achieves the peak value;.
本发明公开了一种基于3D打印的仿生人骨及其制造方法，涉及生物陶瓷人体骨骼材料技术领域。本发明根据第一层陶瓷件的陶瓷原料中含有的A型氮化硅与B型氮化硅的比例与收缩率的对应关系，匹配第二层陶瓷件的收缩率，可以造出孔隙率和抗弯强度呈梯度变化的仿生人骨；能够有效地避免了密质骨和松质骨由于收缩率不匹配导致的连接界面出现裂纹和弯曲；本发明利用单一粉体的不同粒径，采用A型氮化硅与B型氮化硅相复合的方式，可以调整样品收缩率以及烧结后的抗弯强度，当它们之间的配比为某一值时，烧结后样品的抗弯强度达到峰值。
Bionic human bone based on 3D printing and manufacturing method thereof
一种基于3D打印的仿生人骨及其制造方法
WU SHANGHUA (author) / HUANG SHENGWU (author) / SUN ZHENFEI (author) / YANG PING (author)
2021-09-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
A61L
Verfahren oder Vorrichtungen zum Sterilisieren von Stoffen oder Gegenständen allgemein
,
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL
/
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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