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鈦合金表面原位生成鈦酸鉀生物陶瓷涂層的制備及其生物相容性
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國(guó)家自然科學(xué)基金項(xiàng)目(50271024)，天津市自然科學(xué)基金重點(diǎn)項(xiàng)目(00380181)


Fabrication and Bio- compatibility of K_2Ti_6O_(13) Bio-ceramic Coating on the Surface of the Titanium Alloy TiAl_xZr_(x-4)Sn_(x-3.5)Nb_(x-4.5)
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    摘要:

    采用原位干混合煅燒合成法在鈦合金基體上成功制備了K2Ti6O13涂層，并對(duì)涂層的微觀形貌、相組成、涂層-基體的結(jié)合強(qiáng)度進(jìn)行了研究，通過(guò)模擬體液實(shí)驗(yàn)對(duì)其生物活性進(jìn)行了評(píng)估。結(jié)果表明，涂層與基體間結(jié)合牢固，能夠經(jīng)受空冷條件下的冷熱沖擊，熱膨脹系數(shù)的良好匹配是結(jié)合強(qiáng)度提高的主要原因。涂層粗糙的表面和氣孔可為骨的向內(nèi)生長(zhǎng)提供有利位置。經(jīng)模擬體液浸泡，涂層表面形成了鈣磷比接近人體骨骼的鈣磷層，表明涂層具有良好的生物活性。

    Abstract:

    A K2Ti6O13 bio ceramic coating on the surface of titanium alloy TiAlxZrx- 4Snx- 3.5Nbx- 4.5 was prepared by using an in situ kneading drying calcination synthesis technique. During emersion in a simulated body liquid the microstructure, composition of phases, bonding strength between the coating and matrix, and the bio activity of the coating were evaluated. The test results indicated that the bond strength between the coating and the matrix was high enough to resist cool and hot impact during air cooling mainly as a result of the good thermal expansion match between the coating and the matrix. Rough surfaces and small holes on the Ti alloy coating provided sites for simulated bone attachment. Soaking of the coated alloy in a simulated body liquid, encouraged the active formation of a Ca P layer with a ratio of Ca and P appropriate to human bone .

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崔春翔 申玉田 徐艷姬 李艷春 王如 王新 王超.鈦合金表面原位生成鈦酸鉀生物陶瓷涂層的制備及其生物相容性[J].稀有金屬材料與工程,2003,(8):627~630.[Cui Chunxiang, Shen Yutian, Xu Yanji, Li Yanchun, Wang Ru, Wang Xin, Wang Chao. Fabrication and Bio- compatibility of K_2Ti_6O_(13) Bio-ceramic Coating on the Surface of the Titanium Alloy TiAl_xZr_(x-4)Sn_(x-3.5)Nb_(x-4.5)[J]. Rare Metal Materials and Engineering,2003,(8):627~630.]
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  • 最后修改日期:2001-10-25
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