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Apatite-forming ability of alumina and zirconia ceramics in a supersaturated Ca/P solution.

机译:过饱和Ca / P溶液中氧化铝和氧化锆陶瓷的磷灰石形成能力。

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摘要

The apatite-forming ability of alumina and zirconia ceramics was investigated using a supersaturated Ca/P solution. After 2h of immersion, a thin, needle-like nanocrystalline layer with micron-sized clusters of an irregular shape was formed on the alumina and zirconia surfaces. With a longer immersion time the layer thickness increased and the clusters became more spherical. The substrate material has little or no effect on the forming ability of the coating. The XPS Ca/P ratio for the sputtered coating on the zirconia substrate that was immersed in the Ca/P solution for 27h was 1.66. The EDS, XRD and XPS analyses confirmed that the coated layer was hydroxyapatite. The thickness of the hydroxyapatite coating on the zirconia and alumina substrates after immersion in the Ca/P solution for 8 and 27h was from 0.8 to 1.1mum.
机译:使用过饱和的Ca / P溶液研究了氧化铝和氧化锆陶瓷的磷灰石形成能力。浸入2小时后,在氧化铝和氧化锆表面上形成了具有微米级不规则形状簇的针状纳米晶薄层。随着浸泡时间的延长,层的厚度增加,簇变得更加球形。基底材料对涂层的形成能力影响很小或没有影响。浸入Ca / P溶液中27h的氧化锆衬底上的溅射镀膜的XPS Ca / P比为1.66。 EDS,XRD和XPS分析证实涂层为羟基磷灰石。在Ca / P溶液中浸渍8小时和27小时后,在氧化锆和氧化铝基底上的羟基磷灰石涂层的厚度为0.8至1.1μm。

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