Zheng Ke, Li Liangliang, Dong Yaqian, Gao Jie, Hei Hongjun, Ma Yong, Zhou Bin, He Zhiyong, Wang Yongsheng, Yu Shengwang, Tang Bin, Wu Yucheng
Institute of New Carbon Materials, Taiyuan University of Technology, Taiyuan 030024, China.
Materials (Basel). 2020 Mar 11;13(6):1265. doi: 10.3390/ma13061265.
A Ta coating has been successfully fabricated on the surface of zirconia polycrystals ceramic (3 mol% yttria, 3Y-TZP) by a plasma surface alloying technique. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) results showed that a -Ta coating with a continuous and compact surface morphology which consisted of a deposited layer with a thickness of 390 nm and a diffusion layer with a thickness of 200 nm covered the 3Y-TZP. Due to the effect of inhabitation the t→m transformation by the deposited Ta coating, the biaxial flexural strength caused by the phase transformation during hydrothermal aging is reduced e.g. p < 0.05 after 20 h and/or 100 h. In addition, the Ta coating shows non-cytotoxicity and improved proliferation ability of osteoblasts.
通过等离子体表面合金化技术，已成功在氧化钇稳定四方多晶氧化锆陶瓷（3摩尔％氧化钇，3Y-TZP）表面制备了钽涂层。X射线衍射（XRD）和扫描电子显微镜（SEM）结果表明，具有连续致密表面形貌的α-Ta涂层覆盖了3Y-TZP，该涂层由厚度为390nm的沉积层和厚度为200nm的扩散层组成。由于沉积的钽涂层抑制了t→m相变的作用，水热老化过程中相变引起的双轴弯曲强度降低，例如在20小时和/或100小时后p<0.05。此外，钽涂层显示出无细胞毒性并提高了成骨细胞的增殖能力。
