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Sintering temperature effects on nano triphasic bioceramic composite coated 316L SS for corrosion resistance, adhesion strength, and cell proliferation on implants

机译:烧结温度对纳米三层生物陶瓷复合涂层316L SS的抗腐蚀性,粘合强度和植入细胞增殖的影响

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摘要

The present work is mainly accentuated to improve corrosion resistance performance, adhesion strength, biocompatibility, and cell proliferation of metallic implants. Novel nano triphasic bioceramic composite coating was achieved on 316L SS by the electrophoretic deposition process followed by vacuum sintering. The optimized potential for composite coating on 316L SS was found to be 30 V and 1 min. All the composite coated samples were sintered in a vacuum furnace at various sintering temperature starting from 700 ℃ to 1000 ℃ for 1 h. The coated samples were thoroughly characterized in terms of crystallinity, morphology, and surface roughness by XRD, FESEM with EDX, and profilometer studies, respectively. In addition, the coated samples were mechanically characterized using a tap adhesion and Vickers microhardness test. Corrosion performance of the coated sample was characterized by electrochemical studies in Hank's solution. The in vitro cytotoxicity studies for cell viability and cell proliferation was carried out using MC3T3-E1 osteoblast cells. These studies revealed an enhanced cell attachment and proliferation on the composite-coated sample than the un-coated sample, which controlled the discharge of metal ions from the metal surface into the biological system.
机译:当前的工作主要是着重于提高金属植入物的耐腐蚀性能,粘附强度,生物相容性和细胞增殖。通过电泳沉积工艺,然后真空烧结,在316L SS上获得了新型纳米三相生物陶瓷复合涂层。发现在316L SS上复合涂层的最佳电位为30 V和1分钟。将所有复合涂层样品在真空炉中于700℃至1000℃的各种烧结温度下烧结1 h。分别通过XRD,带EDX的FESEM和表面光度仪研究对涂层样品的结晶度,形态和表面粗糙度进行了全面表征。另外,使用拍打粘附力和维氏显微硬度测试对涂覆的样品进行机械表征。涂层样品的腐蚀性能通过在汉克溶液中的电化学研究来表征。使用MC3T3-E1成骨细胞进行了细胞活力和细胞增殖的体外细胞毒性研究。这些研究表明,复合涂层样品比未涂层样品具有更强的细胞附着力和增殖能力,从而控制了金属离子从金属表面向生物系统的排放。

著录项

  • 来源
    《Journal of Materials Research》 |2020年第6期|580-590|共11页
  • 作者

  • 作者单位

    Department of Chemistry Rajalakshmi Engineering College Chennai 602105 India;

    Department of Analytical Chemistry University of Madras Chennai 600025 India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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