Tantalum infiltration in partially stabilized zirconia for biomedical application

作者：Wu, Siyuan; Duan, Jin; Shao, Longquan; Sun, Ting^*

来源：Materials Express, 2023, 13(5): 904-909.

DOI：10.1166/mex.2023.2408

• 3Y-TZP
• Low Temperature Degradation
• Grain Boundary Segregation
• Tantalum

This study aims to improve the low-temperature degradation (LTD) performance of 3% mol yttria tetrahe-dral zirconia polycrystal (3Y-TZP) ceramic. Tantalum ion infiltration fluid was prepared by dispersing Tan-talum nanoparticles (Ta-NPs) into the absolute ethyl alcohol. A 3Y-TZP-Ta (3Y-Ta) structure was produced via infiltrating Ta fluid in a pre-sintered porous 3Y-TZP substrate through capillary forces. The microstruc-ture of 3Y-Ta ceramic samples was observed by scanning electron microscope (SEM), X-ray Photoelectron Spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDS), X-Ray Diffraction (XRD) and X-Ray fluo-rescence (XRF) spectrometry. SEM results showed thformation of 3Y-Ta structure. A phase transformation P: 2038 10920 On: Wed 12 Jul 2023 07:02:33 from tetragonal (t) to monoclinic (m) was not observed n as-infiltrated 3Y-TZP specimens. Ta ions segre-Copyright: American Scientific Publishers gated at the grain boundaries. A 3Y-Ta structure was made by the Ta fluid infiltration/densification method. Delivered by Ingenta 3Y-Ta structure may decrease the susceptibility of 3Y-TZP to LTD. Clinical significance: This study provides theoretical guidance for to reasonable methods to decrease the susceptibility of 3Y-TZP to LTD for biomedical applications.

• 单位
  南方医科大学; 佛山科学技术学院