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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Enhanced bonding between YSZ surfaces using a gas-phase fluorination pretreatment.
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Enhanced bonding between YSZ surfaces using a gas-phase fluorination pretreatment.

机译：使用气相氟化预处理增强YSZ表面之间的键合。

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摘要

The present investigation focuses on the surface modification, via gas-phase fluorination process, of yttria- stabilized zirconia (YSZ) to increase its wettability and chemical bonding directly to acrylate-based resin cements. YSZ plates and cylinders, as-received and roughened, were pretreated in a fluorine containing plasma and bonded with a commercially available resin cement for simple shear bond adhesion testing. No organo-silane coupling agent was used to enhance bonding between the two substrates. Shear bond tests revealed that bond strength increased with fluorination time. Furthermore, the pretreated, as received (nonroughened) specimen group displayed relatively high bond strengths suggesting surface reactivity and direct chemical bonding with the resin cement. X-ray photoelectron spectroscopy analysis revealed the surface conversion layer to be a mixture of phases; zirconium oxyfluoride, zirconium fluoride, and yttrium fluoride. It is hypothesized that these fluoride and oxyfluoride phases have the potential to increase surface hydroxylation, enabling direct covalent bonding between YSZ and resin cement. It is believed that this surface treatment has broad reaching impact when using high-strength ceramics in a multitude of bioapplications.
机译：本研究的重点是通过气相氟化工艺对氧化钇稳定的氧化锆（YSZ）进行表面改性，以提高其润湿性并直接与丙烯酸酯类树脂水泥化学键合。将YSZ板和圆柱体按原样进行处理并使其粗糙化，然后在含氟等离子体中进行预处理，并与市售的树脂胶粘剂粘合，以进行简单的剪切粘合力测试。没有使用有机硅烷偶联剂来增强两个基材之间的结合。剪切粘结试验表明，粘结强度随氟化时间的增加而增加。此外，经过预处理的，如收到的（未粗糙化的）试样组显示出相对较高的粘结强度，表明表面反应性和与树脂水泥的直接化学粘结。 X射线光电子能谱分析表明，表面转化层是相的混合物。氟氧化锆，氟化锆和氟化钇。据推测，这些氟化物和氟氧化物相具有增加表面羟基化的潜力，从而能够实现YSZ与树脂胶泥之间的直接共价键合。相信当在许多生物应用中使用高强度陶瓷时，这种表面处理具有广泛的影响。

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