The present work deals with the fabrication of forsterite–hydroxyapatite (FS–HA) hybrid coatings on stainless-steel 316L using the pulsed laser deposition (PLD) technique. The stainless steel (SS 316L) as a metallic implant is widely used in hard tissue applications. The XRD studies have confirmed the crystalline behavior of synthesized FS powder with an average crystallite size of 54$$nm. The synthesized FS powder was mixed in different compositions (10, 20, 30$$wt.%) into HA for preparing PLD targets (pellets). The XRD of the prepared pellets by UTM has confirmed both phases of FS and HA. The Scanning Electron Microscopy (SEM) of the coated samples depicted the successful deposition of composite powders on the substrates (SS 316$$L). The Ellipsometer was used to investigate the thickness of different substrates and it was found as 243, 251, 255, and 257$$nm for CP1, CP2, CP3, and CP4, respectively. The bioactivity of the coated substrates with different compositions (pure HA, 10%, 20%, 30%, and pure FS) was investigated by immersing the samples in simulated body fluid (SBF) for 14$$days. The same samples were then characterized by SEM which confirms the apatite layer formation that reflects the bioactivity. The addition of FS powder into HA will stimulate the apatite formation which enhances the bioactivity. The Raman Spectroscopy of coated samples reveals the successful deposition of different compositions of FS–HA nanocomposite. The peaks of Raman spectroscopy were corresponding to the XRD results of the pellets (different compositions of FS–HA). The antimicrobial activity of different compositions of FS–HA against Escherichia coli (E. coli) bacteria also showed a significant zone of inhibition. The bioactivity and antimicrobial behavior of FS–HA along with successful deposition by PLD have shown better potential applications for biomedical implant coating.

目前的工作涉及使用脉冲激光沉积 (PLD) 技术在 316L 不锈钢上制造镁橄榄石-羟基磷灰石 (FS-HA) 混合涂层。不锈钢 (SS 316L) 作为金属植入物广泛用于硬组织应用。XRD 研究证实了合成 FS 粉末的结晶行为，平均微晶尺寸为 54$$纳米。合成的 FS 粉末以不同的成分（10、20、30$$wt.%) 转化为 HA 以制备 PLD 靶标（颗粒）。由 UTM 制备的颗粒的 XRD 证实了 FS 和 HA 的两个阶段。涂层样品的扫描电子显微镜 (SEM) 描绘了复合粉末在基材 (SS 316) 上的成功沉积$$升）。椭圆仪用于研究不同基板的厚度，发现为243、251、255和257$$CP1、CP2、CP3 和 CP4 分别为 nm。通过将样品浸泡在模拟体液 (SBF) 中 14 年，研究了具有不同成分（纯 HA、10%、20%、30% 和纯 FS）的涂层底物的生物活性$$天。然后用 SEM 表征相同的样品，这证实了反映生物活性的磷灰石层形成。将 FS 粉末添加到 HA 中会刺激磷灰石的形成，从而增强生物活性。涂层样品的拉曼光谱揭示了不同成分的 FS-HA 纳米复合材料的成功沉积。拉曼光谱的峰对应于颗粒的 XRD 结果（FS-HA 的不同成分）。不同成分的 FS–HA 对大肠杆菌 ( E. coli ) 细菌的抗菌活性也表现出显着的抑菌圈。FS-HA 的生物活性和抗菌行为以及 PLD 的成功沉积已经显示出更好的生物医学植入物涂层的潜在应用。