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脈沖電化學(xué)沉積制備n-HA/ZrO2復(fù)合涂層
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國家自然科學(xué)基金(30700172)；高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研(新教師)基金(20070613019)；國家科技支撐計(jì)劃(2006BAI16B01)


Preparation of n-HA/ZrO2 Composite Coating by Pulsed Electrochemical Deposition
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    摘要:

    用脈沖電化學(xué)沉積法在生物醫(yī)用鈦金屬表面成功制備了納米HA/ZrO2復(fù)合涂層，涂層中的成分均以離子形式沉積到基材上，得到ZrO2均勻分布的HA/ZrO2復(fù)合涂層。脈沖電位為–3.5 V時有利于離子的沉積結(jié)晶，有利于復(fù)合涂層的沉積。復(fù)合涂層的成分、結(jié)構(gòu)、形貌及生物活性等的研究結(jié)果表明：復(fù)合涂層燒結(jié)前成分為HA、OCP及堿式硝酸鋯，高溫?zé)Y(jié)后得到均勻致密HA/ZrO2復(fù)合涂層。檢測表明HA/ZrO2復(fù)合涂層能夠誘導(dǎo)磷灰石生成，具有較好的生物活性。

    Abstract:

    Dense and uniform HA/ZrO2 composite coatings were prepared on biomedical titanium surfaces by Pulsed Electrochemical Deposition. The composite coatings were deposited in the form of ions and ZrO2 was uniformly dispersed in the composite coatings. The pulse potential with –3.5 V was beneficial to ion deposition recrystallization, to composite coating deposition. The compositions, structures, morphologies and bioactivity were characterized. The results showed that the coating compositions included hydroxyapatite (HA), octacalcium phosphate (OCP) and alkaline zirconium nitrate after electrodeposition and then they transformed into HA/ZrO2 composite coatings after high temperature sintering. Simulated body fluid immersion test proved that the as-prepared composite coatings had good bioactivity to induce calcium phosphate under simulated physiological environment.

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王英波,魯 雄,趙 婧,馮 波,汪建新,屈樹新,翁 杰,陳建敏.脈沖電化學(xué)沉積制備n-HA/ZrO2復(fù)合涂層[J].稀有金屬材料與工程,2009,38(6):1071~1075.[Wang Yingbo, Lu Xiong, Zhao Jing, Feng Bo, Wang Jianxin, Qu Shuxin, Weng Jie, Chen Jianmin. Preparation of n-HA/ZrO2 Composite Coating by Pulsed Electrochemical Deposition[J]. Rare Metal Materials and Engineering,2009,38(6):1071~1075.]
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  • 收稿日期:2008-07-15
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