Matuła Izabela, Dercz Grzegorz, Sowa Maciej, Barylski Adrian, Duda Piotr
Institute of Materials Engineering, University of Silesia in Katowice, 41-500 Chorzów, Poland.
Faculty of Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland.
Materials (Basel). 2021 Nov 2;14(21):6609. doi: 10.3390/ma14216609.
In view of the aging population and various diseases worldwide, the demand for implants has been rapidly increasing. Despite the efforts of doctors, engineers, and medical companies, the fabrication of and procedures associated with implants have not yet been perfected. Therefore, a high percentage of premature implantations has been observed. The main problem with metal implants is the mechanical mismatch between human bone and the implant material. Zirconium/titanium-based materials with graded porosity and composition were prepared by powder metallurgy. The whole samples are comprised of three zones, with a radial gradient in the phase composition, microstructure, and pore structure. The samples were prepared by a three-step powder metallurgy method. The microstructure and properties were observed to change gradually with the distance from the center of the sample. The x-ray diffraction analysis and microstructure observation confirmed the formation of diffusive connections between the particular areas. Additionally, the mechanical properties of the obtained materials were checked, with respect to the distance from the center of the sample. An analysis of the corrosion properties of the obtained materials was also carried out.
鉴于全球人口老龄化和各种疾病，对植入物的需求一直在迅速增加。尽管医生、工程师和医疗公司做出了努力，但植入物的制造及相关程序尚未完善。因此，已观察到较高比例的早期植入情况。金属植入物的主要问题是人体骨骼与植入材料之间的机械不匹配。通过粉末冶金制备了具有梯度孔隙率和成分的锆/钛基材料。整个样品由三个区域组成，在相组成、微观结构和孔隙结构上具有径向梯度。样品通过三步粉末冶金法制备。观察到微观结构和性能随距样品中心的距离逐渐变化。X射线衍射分析和微观结构观察证实了特定区域之间形成了扩散连接。此外，还检查了所得材料相对于距样品中心距离的力学性能。还对所得材料的腐蚀性能进行了分析。
