Characteristics of ceramic-like coatings obtained by plasma electrolyte oxidation on different Ti alloys

IF 2.7 4区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Boletin de la Sociedad Espanola de Ceramica y Vidrio Pub Date : 2024-01-01 DOI:10.1016/j.bsecv.2023.04.002

Mariana Correa Rossi , Rafael Formenton dos Santos , Pedro Akira Bazaglia Kuroda , Conrado Ramos Moreira Afonso

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Abstract

Plasma electrolyte oxidation was used to modify the surface of different Ti alloys: c.p. Ti (α hcp structure), Ti–15Nb (α′ + β structure) and Ti–33Nb–33Zr (stable β cubic structure) and the influence of elements and microstructure in the TiO₂-based ceramic layer formed as well as the surface properties was analyzed. The XRD patterns confirmed the presence of TiO₂ (anatase and rutile) in the c.p. Ti. For Ti–15Nb (wt.%) indicated the presence the same oxides also of pentoxide niobium (Nb₂O₅). For Ti–33Nb–33Zr (wt.%) indicated just the presence of rutile as the stable oxide one at room temperature and dioxide zirconium (ZrO₂). In addition, the formation of calcium carbonate CaCO₃ and calcium phosphate Ca₃(PO₄)₂ was detected in all 3 materials. The ceramic-like layer was more homogeneous for c.p. Ti and Ti–15Nb and more irregular hole like-pores for Ti–33Nb–33Zr. Bioactive ions used were detected in all alloys and the roughness for Ti–15Nb was higher compared to c.p. Ti. and Ti–33Nb–33Zr. The contact angle for the three samples was higher than 100°.

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不同钛合金表面等离子体电解质氧化制备类陶瓷涂层的特性

采用等离子电解质氧化法改性了不同钛合金的表面：c.p. Ti（α hcp 结构）、Ti-15Nb（α′ + β 结构）和 Ti-33Nb-33Zr （稳定的 β 立方结构），并分析了形成的基于 TiO2 的陶瓷层中的元素和微观结构以及表面特性的影响。X 射线衍射图证实了在 c.p. Ti 中存在 TiO2（锐钛型和金红石型）。对于 Ti-15Nb（重量百分比），表明存在相同的氧化物和五氧化二铌（Nb2O5）。对于 Ti-33Nb-33Zr（重量百分比），只表明存在金红石（室温下稳定的氧化物）和二氧化锆（ZrO2）。此外，在这三种材料中都检测到了碳酸钙 CaCO3 和磷酸钙 Ca3(PO4)2。在 c.p. Ti 和 Ti-15Nb 中，陶瓷样层更均匀，而在 Ti-33Nb-33Zr 中，陶瓷样层更多的是不规则的孔洞。在所有合金中都检测到了所使用的生物活性离子，与 c.p. Ti 和 Ti-33Nb-33Zr 相比，Ti-15Nb 的粗糙度更高。三种样品的接触角均大于 100°。

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来源期刊

Boletin de la Sociedad Espanola de Ceramica y Vidrio 工程技术-材料科学：硅酸盐

CiteScore

5.50

自引率

2.90%

发文量

审稿时长

103 days

期刊介绍： The Journal of the Spanish Ceramic and Glass Society publishes scientific articles and communications describing original research and reviews relating to ceramic materials and glasses. The main interests are on novel generic science and technology establishing the relationships between synthesis, processing microstructure and properties of materials. Papers may deal with ceramics and glasses included in any of the conventional categories: structural, functional, traditional, composites and cultural heritage. The main objective of the Journal of the Spanish Ceramic and Glass Society is to sustain a high standard research quality by means of appropriate reviewing procedures.