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堿液處理誘導(dǎo)鈦合金基體表面沉積磷灰石層
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R318.08 TG146.23

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國家自然科學基金!(59872 0 2 6 ),教育部跨世紀人才培養(yǎng)計劃 (96年度)資助項目


Apatite Formation Induced by Alkaline Treatment on Titanium Alloy Substrate
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    摘要:

    改變堿液處理條件和基體材料,考察了這些參數(shù)對鈦合金誘導(dǎo)磷灰石能力的影響。結(jié)果表明:經(jīng)過堿液處理鈦合金表面形成了多孔網(wǎng)狀,帶負電荷的二氧化鈦水凝膠層,在過飽和的模擬體液中可沉積出骨狀磷灰石層;隨堿液濃度、溫度和處理時間境加,凝膠層的孔徑和厚度增加,誘導(dǎo)形成磷灰石的能力增強;不同基體材料的誘導(dǎo)能力為:Ti〉TC4,Ti75〉TiZr。太合金堿液處理后可在模擬體液中沉積出磷灰石層,因此堿液處理使鈦合金表

    Abstract:

    The effects of alkali treatment on the deposition of apatite on various titanium alloy substrates have been studied. The results show that a porous titanium dioxide hydrogel layer with negative charge forms on the substrate during alkali treatment, and the gel layer can induce apatite formation in the simulated body fluid(SBF). The pore diameter, gel thickness and the induction ability of the gel layer increase with the concentration, temperature and treating time of the alkaline solution. The induction abilities of the various substrate materials decreases according to Ti>TC4, Ti75>TiZr. It is concluded the titanium alloys treated by alkali can induce apatite formation in SBF, and are bioactive.

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付濤 黃平.堿液處理誘導(dǎo)鈦合金基體表面沉積磷灰石層[J].稀有金屬材料與工程,2000,(3):168~171.[Fu Tao, Huang Ping, Han Yong, Xu Kewei. Apatite Formation Induced by Alkaline Treatment on Titanium Alloy Substrate[J]. Rare Metal Materials and Engineering,2000,(3):168~171.]
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  • 最后修改日期:1999-05-24
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