结合模板浸渍和粉末冶金烧结法,制备出具有良好孔隙性能和力学性能的多孔Nb-Ti合金.采用X射线衍射分析仪(XRD)、力学试验机、体视显微镜(SM)以及扫描电子显微镜(SEM),研究Ti含量(0～15％,质量分数)对多孔Nb-Ti合金成分、力学性能、孔隙结构及微观形貌的影响.结果表明:Nb-Ti合金烧结过程完全,孔隙三维连通程度高,孔隙率为68.50％.随Ti含量从0增加到15％,合金的力学性能发生明显变化,其中抗压强度从(27.6±0.872) MPa增加到(59.3±1.354) MPa后降为(33.7±1.045) MPa,弹性模量从(0.21±0.0136) GPa增加到(0.46±0.0191) GPa.合金孔隙结构均匀化和三维连通程度增加,孔隙结构从块状转变为蜂窝状,颗粒间烧结颈长大,结合变紧密,Ti颗粒对Nb-Ti合金烧结的促进作用明显增强.多孔Nb-10Ti合金的孔隙形貌与松质骨类似,力学性能与人体松质骨相匹配,适合于医学植入应用.
参考文献
| [1] | 阮建明;邹俭鹏;黄伯云.生物材料学[M].北京:科学出版社,2004:1-5. |
| [2] | 王本力;李莉;郑玉峰 .生物医用Ti-Nb基合金的显微组织与耐磨性[J].中国有色金属学报,2010,20(z1):s953-s957. |
| [3] | Nobuhito Sakaguchi;Mitsuo Niinomi;Toshikazu Akahori;Junji Takeda;Hiroyuki Toda .Relationships between tensile deformation behavior and microstructure in Ti-Nb-Ta-Zr system alloys[J].Materials science & engineering, C. Biomimetic and supramolecular systems,2005(3):363-369. |
| [4] | Sumner DR;Turner TM;Igloria R;Urban RM;Galante JO .Functional adaptation and ingrowth of bone vary as a function of hip implant stiffness.[J].Journal of Biomechanics,1998(10):909-917. |
| [5] | 刘培生,黄林国.多孔金属材料制备方法[J].功能材料,2002(01):5-8,11. |
| [6] | Douglas T. Queheillalt;Yasushi Katsumura;Haydn N. G. Wadley .Synthesis of stochastic open cell Ni-based foams[J].Scripta materialia,2004(3):313-317. |
| [7] | SCHWARTZWALDEN K;SOMERS A V .Method of making porous ceramic articles[P].US,3090094,1963-05-21. |
| [8] | Elias LM;Schneider SG;Schneider S;Silva HM;Malvisi E .Microstructural and mechanical characterization of biomedical Ti-Nb-Zr(-Ta) alloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(1-2):108-112. |
| [9] | 马秀梅,孙威,杨永建.生物医用Ti-Nb-（Ta）-Zr合金的微观结构与性能[J].中国有色金属学报,2010(06):1195-1202. |
| [10] | LONG M;RACK H J .Surface deformation and mcirocrack formation in Ti-35Nb-8Zr-5Ta-O(x) alloys during reciprocating sliding wear[J].MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS,2005,25:382388. |
| [11] | 节云峰,邹俭鹏,阮建明.泡沫浸渍法制备的多孔铌基生物材料及性能[J].稀有金属材料与工程,2010(11):2015-2017. |
| [12] | 黄培云;阮建明.粉末冶金原理[M].北京:冶金工业出版社,1997:370-372. |
| [13] | CORNELL C N;LANE J M .Current understanding of osteocondiuction in bone regeneration[J].Clinical Orthopaedics and Related Research,1998,355(10):s267-s273. |
| [14] | SOBALLE K;HANSEN E S;BRACKSEDT R H;BUNGER C .Hydroxyapatite coating converts fibrous tissue to bone around loaded implants[J].JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME,1993,75:270-278. |
| [15] | JANSEN J A;VANDE W J P;WOLKE J G C;GROOT K D .Histologic evaluation of the osseous adaptation to titanium and hydroxyapatite-coated titanium implants[J].Biomedical Materials Research,1991,25:973-989. |
| [16] | KLEIN C P A;WOLKE J G C;BLIECK-H J M A;GROOT K D .Features of calcium phosphate plasma-srayed coatings:An in vitro study[J].Biomedical Materials Research,1994,28:961-967. |
| [17] | Jayaraman M;Meyer U;Buhner M;Joos U;Wiesmann HP .Influence of titanium surfaces on attachment of osteoblast-like cells in vitro.[J].Biomaterials,2004(4):625-631. |
| [18] | BLACK J;HASTINGS G W.Handbook of biomaterials properties[M].London:Chapman and Hall,1998:654-657. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%