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采用放电等离子烧结技术制备了Ti-35Nb-7Zr-XCPP生物复合材料,研究了焦磷酸钙(CPP)含量对复合材料致密度、微观结构、显微组织及其力学性能(压缩强度、压缩弹性模量)的影响。结果表明:复合材料组织主要由β-Ti相基体、少量残留α-Ti相及CPP相组成,CPP含量的增加会导致复合材料中残留α-Ti相含量增加,过高的CPP加入量会使得CPP发生分解现象;复合材料具有较低的压缩弹性模量(40~62 GPa)和较高的抗压强度(1000 MPa以上),显示了良好的力学相容性,过高的CPP加入量会导致复合材料压缩弹性模量出现明显增大现象,从而对复合材料力学相容性产生不利的影响。
Ti-35Nb-7Zr-XCPP composites were prepared by spark plasma sintering. The effects of CPP content on the densification, microstructure, microstructure and mechanical properties (compressive strength, compressive elastic modulus Amount) of influence. The results show that the microstructure of the composite is mainly composed of β-Ti phase, a small amount of residual α-Ti phase and CPP phase. The increase of CPP content leads to the increase of residual α-Ti phase content in the composite. CPP decomposition phenomenon; composite materials with lower compressive elastic modulus (40 ~ 62 GPa) and higher compressive strength (1000 MPa above), showing good mechanical compatibility, too high CPP will be added Resulting in a significant increase in the compressive elastic modulus of composites, which adversely affects the mechanical compatibility of the composites.