采用尿素溶液对一种低模量近β型钛合金(Ti-25Nb-3Zr-2Sn-3Mo,或TLM合金)进行不同温度的水热处理.采用SEM、XRD、XPS、压入法和接触角测试分析了TLM合金处理后的表面结构、化学成分、附着性和亲水性.在105和120℃水热处理后,合金表面形成了钛酸铵的纳米片薄膜；而150℃水热处理后形成了纳米颗粒薄膜,由锐钛矿TiO2和Nb2O5组成.随后的400℃退火热处理使铵盐分解和二氧化钛结晶.生成的氧化物薄膜具有良好的附着性.复合处理增强了TLM合金的亲水性,这有利于改善其生物相容性.
参考文献
| [1] | Kim HM;Miyaji F;Kokubo T;Nakamura T .Effect of heat treatment on apatite-forming ability of Ti metal induced by alkali treatment[J].Journal of Materials Science. Materials in Medicine,1997(6):341-347. |
| [2] | Ueno T;Yamada M;Suzuki T;Minamikawa H;Sato N;Hori N;Takeuchi K;Hattori M;Ogawa T .Enhancement of bone-titanium integration profile with UV-photofunctionalized titanium in a gap healing model.[J].Biomaterials,2010(7):1546-1557. |
| [3] | Miyauchi M;Tokudome H .Super-hydrophilic and transparent thin films of TiO2 nanotube arrays by a hydrothermal reaction[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2007(20):2095-2100. |
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