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发明公开
CN103908699A 一种钛合金表面的HA/TiO2层及其制备方法 失效 - 权利终止

一种钛合金表面的HA/TiO2层及其制备方法
摘要：
本发明提供一种钛合金表面的HA/TiO2层，该HA/TiO2层与钛合金基体的结合强度为15～28MPa，其特征在于，包括：包覆在所述钛合金表面的多孔的TiO2层；以及生长在所述TiO2层上的HA层。本发明还提供一种制备上述钛合金表面的HA/TiO2层的方法，其特征在于，包括以下步骤：步骤一，配置微弧氧化处理液；步骤二，微弧氧化处理；步骤三，配置电化学沉积液；步骤四，电化学沉积。根据本发明的钛合金表面的HA/TiO2层与基体具有很高的结合强度，满足医学应用需求，该HA/TiO2层的制备方法首先采用微弧氧化的方法使钛合金表面形成一层含钙、磷的多孔TiO2层，然后采用电化学沉积法在TiO2层表面制备HA层，该HA生物活性涂层与基体的结合强度高，生长速率快，适合商业化生产。
摘要（英）：

The invention provides an HA/TiO2 layer on the surface of a titanium alloy. The binding strength of the HA/TiO2 layer and a titanium alloy substrate is 15-28MPa. The HA/TiO2 layer is characterized by comprising a porous TiO2 layer wrapped on the surface of the titanium alloy and an HA layer growing on the TiO2 layer. The invention further provides a method of preparing the HA/TiO2 layer on the surface of the titanium alloy. The method is characterized by comprising the following steps: S1, preparing a micro-arc oxidation treatment solution; S2, carrying out micro-arc oxidation treatment; S3, preparing an electrochemical deposition solution; S4, carrying out electrochemical deposition. The HA/TiO2 layer on the surface of the titanium alloy and the titanium alloy substrate have high binding strength which satisfies the demand on medical application. The preparation method of the HA/TiO2 layer comprises the following steps: firstly, forming a calcium and phosphorus-containing porous TiO2 layer on the surface of the titanium alloy by virtue of the micro-arc oxidation method; then, preparing the HA layer on the surface of the TiO2 layer by the electrochemical deposition method. The HA biological active coating is high in binding strength with the substrate, fast in growing speed and suitable for commercial production.

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