李嘉伟,李大玉,顾熠鑫,肖金坤,张超,张燕军.热喷涂制备二氧化钛涂层中锐钛矿相调控的研究进展[J].材料导报,2017,31(3):26-31 |
热喷涂制备二氧化钛涂层中锐钛矿相调控的研究进展 |
Research Progress of Regulating Anatase Phase of TiO2 Coatings Deposited by Thermal Spray |
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DOI:10.11896/j.issn.1005-023X.2017.03.005 |
中文关键词: 热喷涂 TiO2涂层 锐钛矿相 调控 |
英文关键词: thermal spray, titanium dioxide coatings, anatase, phase regulation |
基金项目:国家自然科学基金(51602279);江苏省自然科学基金(BK20150455);扬州市科学技术计划项目(YZ2015088) |
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中文摘要: |
二氧化钛(TiO2)涂层在许多领域具有重要的应用价值,如光催化降解和光电池,近年来引起了相关研究者的广泛关注。在众多涂层制备技术中,热喷涂技术可以快速、高效、大面积、大批量地制备TiO2涂层,且得到的涂层力学性能良好,喷涂成本较为低廉,因而使热喷涂TiO2涂层的应用更具前景。TiO2涂层的晶相组成是影响涂层最终性能的一个重要因素,而控制涂层中晶相组成的关键是调控亚稳态的锐钛矿相含量。综述了近些年来国内外制备TiO2涂层常用的热喷涂技术,如传统粉末热喷涂、液料热喷涂以及冷喷涂等,分别阐述了不同热喷涂技术中通过调节一些重要参数达到调控涂层中锐钛矿相的方法,并讨论了材料掺杂对TiO2涂层中锐钛矿相的影响,指出了目前调控涂层中锐钛矿相存在的问题和后续的研究方向。 |
英文摘要: |
Titanium dioxide (TiO2) coatings have potential applications in many important areas, like photocatalysis decomposition and photovoltaic cell, which have attracted extensive attention of researchers in recent years. Among various coating fabrication techniques, thermal spray processes can be used to prepare TiO2 coatings quickly and efficiently in large area and batch. The obtained coatings have good mechanical properties and the cost is relatively low, which make the thermal sprayed TiO2 coatings have broad prospects in industrial productions. However, the crystalline phase composition of TiO2 coatings is an important factor affecting the final properties of the coatings. The key point of controlling the crystalline phase composition is the regulation of metastable anatase phase. This paper reviews the thermal spraying technologies which are applied to deposit TiO2 coatings, such as the conventional powder thermal spray, liquid thermal spray and cold spray, etc. The optimization of important spraying parameters to achieve the objective of regulating anatase phase have been described. The effects of doping on anatase phase of TiO2 are discussed. Finally, the problems existing in regulating anatase phase of TiO2 coatings and the future research directions are proposed. |
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