Excellent mechanical, electrical and current-carrying tribological properties of nano/micro composite TiO2-x coating prepared by supersonic plasma spraying

材料科学 摩擦学 涂层 微观结构 复合材料 复合数 磨料 陶瓷 压痕硬度 断裂韧性
作者
Peng Wang,Guozheng Ma,Fenghua Su,Weiling Guo,Shuying Chen,Haichao Zhao,Ming Liu,Haidou Wang
出处
期刊:Surface & Coatings Technology [Elsevier BV]
卷期号:445: 128710-128710 被引量:6
标识
DOI:10.1016/j.surfcoat.2022.128710
摘要

Synthesis of TiO2-x conductive ceramics with good comprehensive properties is of great significance. In this work, nano (n-TiO2) and submicron (m-TiO2) agglomerated powders are used to prepare the nano/micro composite TiO2-x coating by plasma spraying. For comparison, the conventional TiO2-x coating is also fabricated with submicrometer structure powders. The phase constitution, microstructure, mechanical properties, electrical conductivity and tribological behaviors of the coatings are studied. The results show that the content of TiO2-x in the conventional coating is higher than that of the composite coating. While the composite TiO2-x coating exhibits the denser microstructure with improved microhardness, fracture toughness and bonding strength. Furthermore, the electrical conductivity of the composite TiO2-x coating is more than twice that of the conventional TiO2-x coating. The conventional TiO2-x coating shows the lower friction coefficient than the composite TiO2-x coating under dry friction condition, whereas the composite coating has the lower wear loss. When the tribology tests are conducted under current-carrying condition of 2A, the friction coefficients of the two coatings decline and their values show little difference. However, the wear rates of the coatings as well as the corresponding counterparts increase notably with the electric current. In general, the main wear mechanisms of the coatings under dry friction condition are adhesion wear accompanied by fatigue wear, which then changes into adhesion wear and abrasive wear under current-carrying condition.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
奋斗千秋发布了新的文献求助10
刚刚
刚刚
nature发表大师完成签到 ,获得积分10
1秒前
精明觅荷发布了新的文献求助10
2秒前
爱我嫉妒我完成签到,获得积分10
2秒前
ling发布了新的文献求助10
2秒前
天天快乐应助Improve采纳,获得10
2秒前
2秒前
3秒前
3秒前
lyl发布了新的文献求助10
3秒前
4秒前
杨仲秋完成签到,获得积分10
4秒前
4秒前
明理芷天完成签到 ,获得积分10
4秒前
访云完成签到,获得积分20
4秒前
4秒前
5秒前
5秒前
5秒前
田様应助跳跃的以蕊采纳,获得10
6秒前
乐乐应助戴斌彬采纳,获得10
6秒前
ZiZi发布了新的文献求助10
7秒前
你终硕完成签到 ,获得积分10
7秒前
阔达的难破应助炫酷火锅采纳,获得50
7秒前
访云发布了新的文献求助10
8秒前
8秒前
8秒前
零食宝发布了新的文献求助10
9秒前
一一发布了新的文献求助10
9秒前
久等雨归发布了新的文献求助10
9秒前
zoerist发布了新的文献求助10
9秒前
刘洋发布了新的文献求助30
10秒前
10秒前
Akim应助三川采纳,获得20
11秒前
yy发布了新的文献求助10
12秒前
13秒前
14秒前
量子星尘发布了新的文献求助20
15秒前
16秒前
高分求助中
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
Zeolites: From Fundamentals to Emerging Applications 1500
Architectural Corrosion and Critical Infrastructure 1000
Early Devonian echinoderms from Victoria (Rhombifera, Blastoidea and Ophiocistioidea) 1000
2026国自然单细胞多组学大红书申报宝典 800
Research Handbook on Corporate Governance in China 800
Elgar Concise Encyclopedia of Polar Law 520
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 内科学 生物化学 物理 计算机科学 纳米技术 遗传学 基因 复合材料 化学工程 物理化学 病理 催化作用 免疫学 量子力学
热门帖子
关注 科研通微信公众号,转发送积分 4905930
求助须知:如何正确求助?哪些是违规求助? 4183651
关于积分的说明 12991222
捐赠科研通 3949866
什么是DOI,文献DOI怎么找? 2166163
邀请新用户注册赠送积分活动 1184716
关于科研通互助平台的介绍 1090985