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首页> 外文期刊>Journal of the mechanical behavior of biomedical materials >Tailor-made design, fabrication and validation of SrO doped nanostructured ZTA ceramic Femoral head - Acetabular socket liner assembly
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Tailor-made design, fabrication and validation of SrO doped nanostructured ZTA ceramic Femoral head - Acetabular socket liner assembly

机译：SRO掺杂纳米结构ZTA陶瓷股骨头 - 髋臼插座衬里组件量身定制的设计，制造和验证

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An established commercial grade SrO doped ZTA composition has been considered to design, fabrication through uniaxial pressing followed by sintering and polishing, validation of dimension, 3D surface profile, 3D microstructure, and compressive load bearing capacity of femoral head - acetabular socket liner prototypes for the hip prosthesis. While design and dimensions are concerned, both the steel (HRC60) molds were designed and machined to achieve precious dimensions of femoral head (FH; OD - 30 +/- 0.01 mm) and acetabular socket liner (ASL; ID - 30.15 +/- 0.01 mm). A close variation in the range of +/- 0.01 mm was confirmed the precision geometry of polished FH and ASL with consideration of 22 points coordinate measuring method (CMM). 3D surface profile ensures the surface characteristics of R-a = 0.2 +/- 0.01 mu m and R-q = 0.5 +/- 0.01 mu m for outer surface of FH and an inner surface of ASL, respectively. Structure integrity and fabrication defects including cracks and pores free bulk structures were confirmed by Micro CT. The compressive load resistance known as burst strength for independent FH and FH-ASL assembly were measured 16.2 KN and 17.6 KN, respectively. The developed ceramic prototypes have an economic advantage and can be adopted as artificial hip prosthesis after extensive in-vitro and in-vivo analysis.
机译：一种已建立的商业级掺SrO ZTA组合物已被考虑用于设计、通过单轴压制制造，然后烧结和抛光，验证髋关节假体股骨头-髋臼套筒衬垫原型的尺寸、3D表面轮廓、3D微观结构和压缩承载力。在设计和尺寸方面，钢（HRC60）模具的设计和加工都是为了获得宝贵的股骨头（FH；外径-30+/-0.01 mm）和髋臼窝内衬（ASL；ID-30.15+/-0.01 mm）尺寸。考虑到22点坐标测量法（CMM），抛光FH和ASL的精密几何结构在+/-0.01 mm范围内发生了密切变化。3D表面轮廓确保FH外表面和ASL内表面的R-a=0.2+/-0.01μm和R-q=0.5+/-0.01μm的表面特征。显微CT证实了结构完整性和制造缺陷，包括裂纹和无气孔的块状结构。独立FH和FH-ASL组件的抗压负荷强度（即爆裂强度）分别为16.2 KN和17.6 KN。所开发的陶瓷原型具有经济优势，经过广泛的体外和体内分析，可以作为人工髋关节假体。

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