Sadlik Julia, Kosińska Edyta, Tomala Agnieszka, Bańkosz Magdalena, Polajnar Marko, Kumar Rahul, Kalin Mitjan, Kravanja Gaia, Hribar Luka, Hussainova Irina, Nykiel Marek, Sobczak-Kupiec Agnieszka, Jampilek Josef
Department of Materials Science, Faculty of Materials Engineering and Physics, CUT Doctoral School, Cracow University of Technology, 37 Jana Pawła II Av., 31-864 Krakow, Poland.
Department of Materials Science, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31-864 Krakow, Poland.
Materials (Basel). 2025 May 24;18(11):2468. doi: 10.3390/ma18112468.
Bone diseases lead to an increasing demand for implants to treat long bone defects and for load-bearing applications. Osteoporosis care and accidental injuries are major contributors to this rising need. Our research aims to demonstrate innovative material systems and methods for preparing implants that can be used in regenerative medicine. We hypothesize that by combining titanium alloys (Ti6Al4V) with hydroxyapatite (Hap), we can enhance biocompatibility and tribo-mechanical performance, which are critical for the longevity of Ti-based surgical implants. Additionally, we investigate the application of laser surface treatments to expose the underlying porosity, thereby enhancing cell transport and promoting cell growth. In this study, we investigate the effects of two fabrication techniques-Spark Plasma Sintering (SPS) and powder metallurgy (PM)-on the properties of laser-textured Ti64/Hap biocomposites. Our findings demonstrate that the selected processing route significantly influences the microstructure, tribological performance, and surface properties of these materials. An X-ray diffraction (XRD) analysis corroborates our results from incubation studies in simulated body fluids, highlighting the impact of phase transformations during sintering on the chemical properties of Ti-Hap composites. Additionally, while laser surface texturing was found to slightly increase the friction coefficient, it markedly enhanced the wear resistance, particularly for the PM and SPS Ti + 5%Hap composites.
骨疾病导致对用于治疗长骨缺损的植入物以及承重应用的需求不断增加。骨质疏松症护理和意外伤害是这种需求上升的主要原因。我们的研究旨在展示可用于再生医学的创新材料系统和制备植入物的方法。我们假设通过将钛合金（Ti6Al4V）与羟基磷灰石（Hap）相结合，可以提高生物相容性和摩擦机械性能，这对于钛基外科植入物的使用寿命至关重要。此外，我们研究激光表面处理的应用，以暴露潜在的孔隙率，从而增强细胞运输并促进细胞生长。在本研究中，我们研究了两种制造技术——放电等离子烧结（SPS）和粉末冶金（PM）——对激光纹理化Ti64/Hap生物复合材料性能的影响。我们的研究结果表明，所选的加工路线对这些材料的微观结构、摩擦学性能和表面性能有显著影响。X射线衍射（XRD）分析证实了我们在模拟体液中进行的孵育研究结果，突出了烧结过程中的相变对Ti-Hap复合材料化学性质的影响。此外，虽然发现激光表面纹理化会略微增加摩擦系数，但它显著提高了耐磨性，特别是对于PM和SPS Ti + 5%Hap复合材料。
