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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Hydroxyapatite thin films deposited onto uncoated and (Ti,Al, V)N-coated Ti alloys.
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Hydroxyapatite thin films deposited onto uncoated and (Ti,Al, V)N-coated Ti alloys.

机译：羟基磷灰石薄膜沉积到未涂覆和（Ti，Al，V）N涂覆的Ti合金上。

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Plasma-sputtered hydroxyapatite (HA) thin coatings ( approximately 1 microm) were deposited onto uncoated and (TiAlV)N-coated Ti-6Al-4V-alloy substrates at low temperatures. The (TiAlV)N coating interlayer was deposited by reactive sputtering. Depositions were achieved by utilizing unbalanced and balanced magnetrons in a capacitively coupled RF plasma. Characterization of the thermostability, bioerosion resistance, and chemical composition of the coating layer was examined by scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDX), and Fourier transform infrared spectroscopy (FTIR). The results show that for deposition temperatures as low as 67 degrees C, the crystalline phase of the HA coating still is clearly detectable and that the underlying (TiAlV)N coating can increase the crystallinity and thermostability of the HA coating before and after heat treatment. The thin ( approximately 1 microm) sputtered HA coating shows strong HA characteristic peaks in the FTIR spectra even after a 30-day dissolution test. The experimental results show that a multilayer structure comprised of a bioinert (TiAlV)N and bioactive HA coating has the potential to improve the biocompatibility of implant materials. The bioinert (TiAlV)N coating also may provide a long-term stable interface between bone tissue and an alloy implant after the bioactive HA coating is remodeled by the surrounding tissue. Copyright 1999 John Wiley & Sons, Inc.
机译：在低温下，将等离子溅射的羟基磷灰石（HA）薄涂层（约1微米）沉积到未涂覆的和（TiAlV）N涂覆的Ti-6Al-4V合金基材上。通过反应溅射沉积（TiAlV）N涂层中间层。通过在电容耦合RF等离子体中利用不平衡和平衡磁控管来实现沉积。通过扫描电子显微镜（SEM），能量色散X射线分析（EDX）和傅里叶变换红外光谱（FTIR）检查涂层的热稳定性，抗生物侵蚀性和化学组成的特征。结果表明，对于低至67摄氏度的沉积温度，HA涂层的晶相仍然清晰可见，并且下面的（TiAlV）N涂层可以提高热处理前后HA涂层的结晶度和热稳定性。即使经过30天的溶出度测试，薄的溅射HA涂层（约1微米）在FTIR光谱中仍显示出很强的HA特征峰。实验结果表明，由生物惰性（TiAlV）N和生物活性HA涂层组成的多层结构具有改善植入物材料生物相容性的潜力。在生物活性HA涂层被周围组织重塑后，生物惰性（TiAlV）N涂层还可以在骨骼组织和合金植入物之间提供长期稳定的界面。版权所有1999 John Wiley＆Sons，Inc.

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