热喷涂制备二氧化钛涂层中锐钛矿相调控的研究进展

发布时间：2018-01-30 02:45

本文关键词： 热喷涂 TiO 涂层锐钛矿相调控　出处：《材料导报》2017年03期 　论文类型：期刊论文

【摘要】：二氧化钛(TiO_2)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TiO_2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TiO_2涂层的应用更具前景。TiO_2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TiO_2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TiO_2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。
[Abstract]:TiO-2) coating has important application value in many fields, such as photocatalytic degradation and photocell. In recent years, many researchers have paid close attention to it. Thermal spraying technology can be used to prepare TiO_2 coatings quickly, efficiently, in large area and in large quantities. The coating has good mechanical properties and low spraying cost. Therefore, the crystal phase composition of the thermal sprayed TiO_2 coating is an important factor affecting the final properties of the coating. The key to controlling the crystal phase composition of the coating is to control the metastable anatase phase content. This paper reviews the thermal spraying techniques commonly used in the preparation of TiO_2 coatings at home and abroad in recent years, such as traditional powder thermal spraying. The methods of adjusting the anatase phase in the coating by adjusting some important parameters in different thermal spraying techniques are described respectively. The effect of doping on anatase phase in TiO_2 coating is discussed. The problems existing in the control of anatase phase in the coating and the future research directions are pointed out.
【作者单位】：扬州大学机械工程学院;
【基金】：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)
【分类号】：TB306
【正文快照】： 0引言二氧化钛(TiO2)是一种无机非金属材料,存在3种较为常见的晶相:锐钛矿相、金红石相和板钛矿相。板钛矿相最不稳定,在自然界中很稀有,因此TiO2一般主要以锐钛矿相和金红石相的形式存在。锐钛矿相是TiO2的亚稳态相,金红石相是TiO2的稳态相,锐钛矿相会在一定温度下转变为金红

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