Tribological behaviors of DLC films in sulfuric acid and sodium hydroxide solutions
Tribological behaviors of DLC films in sulfuric acid and sodium hydroxide solutions
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DLC薄膜在硫酸和氢氧化钠溶液中的摩擦学行为
DOI：
10.1002/sia.6747
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发表时间：
2020
影响因子：
1.7
通讯作者：
Zhang Guangan
中科院分区：
文献类型：
--
作者：
Li Wensheng;He Dongqing;Ren Wei;Wang Liping;Shang Lunling;Zhang Guangan
研究了3种典型的类金刚石碳（DLC）薄膜（a-C、a-C：Cr和a-C：H）在硫酸和氢氧化钠溶液中的摩擦学行为。a-C膜在硫酸和氢氧化钠溶液中均显示出最低的稳定摩擦系数（COF），但在硫酸溶液中的耐磨性最差。a-C：H膜在硫酸溶液中表现出最高的COF，并且在硫酸和氢氧化钠溶液中表现出最好的耐磨性。a-C：Cr膜在硫酸溶液中表现出上级综合摩擦学性能，而在氢氧化钠溶液中，观察到高COF和非常差的耐磨性。通过对摩擦引起的滑动表面材料演变的研究，揭示了摩擦磨损机理。
Tribological behaviors of three typical kinds of diamond‐like carbon (DLC) films (a‐C, a‐C:Cr, and a‐C:H) in sulfuric acid and sodium hydroxide solutions were investigated. The a‐C film showed the lowest stable coefficients of friction (COF) in both sulfuric acid and sodium hydroxide solutions but the worst wear resistance in sulfuric acid solution. The a‐C:H film showed the highest COF in sulfuric acid solution and the best wear resistance in both sulfuric acid and sodium hydroxide solutions. The a‐C:Cr film exhibited superior comprehensive tribological performance in sulfuric acid solution, while in sodium hydroxide solution, high COF and very poor wear resistance was observed. What is more, friction and wear mechanism was revealed by investigating the friction‐induced material evolutions on the sliding surface.