Preparation and Characterization of Mechanical Properties of HAP/45S5 Bioglass Laminated Ceramic Composites via Spark Plasma Sintering

被引:0
作者
Meng, Ye [1 ,2 ]
Li, Xinge [1 ,2 ]
Yun, Bing [1 ,2 ]
机构
[1] Univ Sci & Technol Beijing, Natl Demonstrat Ctr Expt Mat Educ, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
关键词
hydroxyapatite; laminated; spark plasma sintering; biocomposite; HYDROXYAPATITE; MICROSTRUCTURE; CONSOLIDATION; FABRICATION; SCAFFOLDS; TOUGHNESS; BEHAVIOR; CALCIUM;
D O I
10.3390/ma17225413
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Hydroxyapatite (HAP) displays a high degree of similarity to the inorganic components that make up roughly 70% of human hard tissue, and it possesses exceptional biological activity and biocompatibility. It is currently internationally recognized as the most biologically active hard tissue implant material. However, its substandard mechanical properties have significantly limited the application of HAP in areas requiring load bearing or in the repair of large bone defects. In this study, HAP/45S5 bioglass laminated ceramic composites were consolidated using the spark plasma sintering (SPS) technique. The grain growth and phase transformation of HAP and 45S5 bioglass were examined at various sintering temperatures. The mechanical properties of the laminated composites were investigated. At 950 degrees C, the flexural strength and fracture work of the sintered body were (153.22 +/- 7.7) MPa and (2049 +/- 34) J<middle dot>m-2, respectively. These results corresponded to the load-displacement curves and showed that the composites met the mechanical performance requirements of the support material.
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页数:14
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