中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (43): 6487-6493.doi: 10.3969/j.issn.2095-4344.2016.43.015

• 生物材料综述 biomaterial review • 上一篇    下一篇

钛基金属陶瓷人工髋关节材料:表面碳化钛陶瓷和复杂的微孔结构提高了表面硬度

杨  婷,罗  勇,曹东东,柯海宝
  

  1. 中国矿业大学材料科学与工程学院,摩擦学与可靠性研究所,江苏省徐州市  221116
  • 收稿日期:2016-07-24 出版日期:2016-10-21 发布日期:2016-10-21
  • 通讯作者: 罗勇,副教授,博士,中国矿业大学材料科学与工程学院,摩擦学与可靠性研究所,江苏省徐州市 221116
  • 作者简介:杨婷,女,1991年生,四川省都江堰市人,汉族,中国矿业大学在读硕士,主要从事生物材料的研究。
  • 基金资助:

    国家自然科学基金面上项目资助(51575514);中国博士后科学基金特别资助项目(2015T80598)

Titanium-based cermet as an artificial joint material: the surface hardness is increased by titanium carbide ceramics and complex pore structure

Yang Ting, Luo Yong, Cao Dong-dong, Ke Hai-bao
  

  1. Institute of Tribology and Reliability Engineering, School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu Province, China
  • Received:2016-07-24 Online:2016-10-21 Published:2016-10-21
  • Contact: Luo Yong, Doctor, Associate professor, Institute of Tribology and Reliability Engineering, School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu Province, China
  • About author:Yang Ting, Studying for master’s degree, Institute of Tribology and Reliability Engineering, School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu Province, China
  • Supported by:
    the National Natural Science Foundation of China, No. 51575514; China Postdoctoral Foundation, No. 2015T80598

摘要:

文章快速阅读:

 

文题释义:
钛基金属陶瓷
:从性能功能上来说,心部具有金属强韧,表面具有陶瓷坚硬耐磨;从成分结构上来说,是沿着某一方位(一维、二维或者三维)向另一方位连续地变化,使材料的性能和功能也呈现梯度变化;而从界面特征上来说,是在金属和陶瓷之间没有明显的界面特征,陶瓷与金属间应有牢固的结合,有别于通常涂层的特殊材料。
金属对聚乙烯人工关节材料:由于高分子材料有着良好的耐磨性、力学性能、耐蚀性及生物相容性,使其在人工髋关节假体材料方面得到了广泛的应用,并且被认为是最佳的人工全髋关节假体材料。但在长期的临床研究中发现,金属对聚乙烯中出现的主要问题是由于摩擦产生的磨屑,尤其是超高分子聚乙烯磨屑,容易引起骨骼发炎和无菌松动,从而加剧了关节假体的磨损,以致人工全髋关节置换失效,关节假体的使用寿命也就显著降低了。

背景:钛基金属陶瓷作为一种新型的人工关节材料,其制备和性能的研究对于提高人工关节的稳定性和可靠性具有重要的意义。
目的:重点阐述人工髋关节材料钛基金属陶瓷的研究进展情况。
方法:以“Titanium,Artificial hip,cermet,CoCrMo,钛合金,人工髋关节,金属陶瓷,钴铬钼”为检索词,检索2000至2015年Web of Science数据库及中国知网相关文献,对人工髋关节材料的发展历史、人工关节材料的选择和人工关节摩擦副的影响相关研究进行探讨。
结果与结论:钛基金属陶瓷作为一种功能梯度材料,有效地结合了金属与陶瓷的性能,但又与金属表面简单的陶瓷涂层不同。由于钛金属陶瓷的成分为梯度分布,使钛金属陶瓷不存在明显的界面,因此钛金属陶瓷不存在结合力的问题,不会产生涂层脱落。但是,由于制备的原因,可能会导致钛基金属陶瓷韧性、力学性能的不足,所以,找到一种合适的制备方法可以获得性能极优的人工关节材料。通过对钛基金属陶瓷表面进行X射线衍射分析发现,实验生成的钛金属陶瓷与面心立方碳化钛的标准衍射图谱完全吻合,表明在钛合金表面均形成了单一的碳化钛陶瓷相,X射线衍射分析进一步验证了表面生成的确实是碳化钛;钛金属陶瓷表面的碳化钛陶瓷和其复杂的微孔结构极大地提高了钛合金的表面硬度。

关键词: 生物材料, 骨生物材料, 钴铬钼合金, 金属陶瓷, 人工关节, 钛合金, 表面改性, 国家自然科学基金

Abstract:

BACKGROUND: Research on the preparation and properties of titanium-based cermet, serving as a new type of artificial joint material, is of great significance to improve the stability and reliability of the artificial joint.
OBJECTIVE: To emphatically describe the research progress of titanium-based cermet as an artificial joint material.
METHODS: A computer-based search of Web of Science and CNKI databases was performed for articles related to development, selection, and friction pairs of artificial joint materials published from 2000 to 2015. The keywords were “Titanium, Artificial hip, cermet, CoCrMo” in English and Chinese, respectively.
RESULTS AND CONCLUTION: Titanium-based cermet is a functionally graded material that effectively combines the properties of metals and ceramics, which is different from traditional ceramics coated on the metal surface. As the element composition profile with depth shows a gradient transition across the coating-substrate, the titanium-based cermet has a good metallurgic bond between the coating and the substrate. However, titanium-based cermets are likely to have poor toughness and mechanical properties due to preparation techniques. Therefore, a suitable method and technique for preparation of titanium-based cermet is warranted to improve the properties of the artificial joint material. Findings from X-ray diffraction and X-ray photoelectron spectroscopy reveal that uniform and compact titanium carbide with a face-centred cubic structure is formed on the surface of titanium alloy. The surface hardness of titanium-based cermets is significantly improved due to the formation of titanium carbide and its complex microporous structure. 

Key words: Metal Ceramic Alloys, Joint Prosthesis, Tissue Engineering

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