分析了近等原子比NiTi形状记忆合金实现去合金化的热力学条件,并采用低温去合金化处理法对其进行表面改性:经SEM、XRD、XPS、EDX,模拟体液(SBF)仿生沉积等分析研究表明,NiTi合金经去合金化处理后,在合金表面选择性地除去了有害元素镍,在距表层约130nm深度内原位制各出完全无镍的具有纳米结构的二氧化钛层;同时结合上羟基(OH-),在SBF溶液中,经低温去合金化处理后的合金表面具有诱导Ca/P沉积的能力,从而提高了NiTi形状记忆合金的生物相容性.
参考文献
| [1] | Shabalovskaya SA.;Anderegg JW. .SURFACE SPECTROSCOPIC CHARACTERIZATION OF TINI NEARLY EQUIATOMIC SHAPE MEMORY ALLOYS FOR IMPLANTS[J].Journal of Vacuum Science & Technology, A. Vacuum, Surfaces, and Films,1995(5):2624-2632. |
| [2] | 杨贤金,何菲,朱胜利,崔振铎,姚康德.化学修饰对NiTi形状记忆合金氧化膜的影响[J].功能材料,2002(02):169-171. |
| [3] | Ryhanen J;Niemi E;Serlo W et al.[J].Journal of Biomedical Materials Research,1997,35:451. |
| [4] | Tan L;Crone W C .[J].Acta Materials,2002,50:4449. |
| [5] | Lackner JM;Waldhauser W;Ebner R;Major B;Schoberl T .Pulsed laser deposition of titanium oxide coatings at room temperature - structural, mechanical and tribological properties[J].Surface & Coatings Technology,2004(0):585-590. |
| [6] | Cheng F T;Shi P;Man H C .[J].Materials Letters,2005,59:1516. |
| [7] | Man H C;Cui Z D;Yue T M .[J].Scripta Materialia,2001,45:1447. |
| [8] | Ray Poon W Y;Joan Ha P Y;Xuanyong Liu et al.[J].Materials Science and Engineering A,2005,390:444. |
| [9] | Liu JX.;Yang DZ.;Shi F.;Cai YJ. .Sol-gel deposited TiO2 film on NiTi surgical alloy for biocompatibility improvement[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2003(1/2):225-230. |
| [10] | Cisse O;Savadogo O;Wu M et al.[J].Journal of Biomedical Materials Research,2002,61:339. |
| [11] | 周俊,储成林,钟志源.复合活化处理镍钛合金及磷灰石层的仿生沉积[J].稀有金属材料与工程,2006(06):994-997. |
| [12] | Brien B O;Caeeoll W M;Kelly J .[J].Biomaterials,2002,23:1739. |
| [13] | Cheng FT;Shi P;Man HC .A preliminary study of TiO2 deposition on NiTi by a hydrothermal method[J].Surface & Coatings Technology,2004(1):26-32. |
| [14] | 刘敬肖,杨大智,徐久军,陈吉华,蔡英骥.离子束合成TiO2薄膜对医用NiTi合金表面的改性[J].材料研究学报,2001(04):445-450. |
| [15] | Herbert Uhlig H;Winston R Revie.Corrosion and Corrosion Control[M].Cambridgeshire:A Wiley-Interscience Publication,1985 |
| [16] | 顾新丰,蒋垚,韩培,张小农.钛合金表面纳米化对成骨细胞黏附的影响[J].中国临床康复,2006(25):46-48,插图25-3. |
| [17] | Webster TJ;Ejiofor JU .Increased osteoblast adhesion on nanophase metals: Ti, Ti6Al4V, and CoCrMo.[J].Biomaterials,2004(19):4731-4739. |
| [18] | Shih C C;Lin S J;Chen Y L et al.[J].Journal of Biomedical Materials Research,2000,52:395. |
| [19] | Green S M;Grant D M;Wood J V .[J].Materials Science and Engineering A,1997,224:21. |
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