高温下纳米金刚石和石墨烯纳米片复合增强氧化铝涂层的摩擦学性能研究

IF 1 4区 工程技术 Q4 INSTRUMENTS & INSTRUMENTATION
MAPAN Pub Date : 2024-03-27 DOI:10.1007/s12647-024-00744-3
Shubhangi Chourasia, Qasim Murtaza, Saurabh Agrawal
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引用次数: 0

摘要

摘要 由于具有显著的摩擦学优势并能抵御恶劣环境,因此对多层面涂层的需求量很大。然而,陶瓷涂层性能良好,但仅限于高温环境。本研究发现,0.1 wt% 的纳米金刚石和 1 wt% 的石墨烯纳米颗粒增强的 Al2O3 在 300 至 500 °C 的高温下具有更好的耐磨性能。A-SD、AND-SD 和 ANDG-SD 的相对密度分别为 94.45 ± 1.9、95.45 ± 0.9 和 97.25 ± 1.9。在 300 °C、10N 条件下,AND-SD 的磨损率下降了 50.12%,ANDG-SD 则下降了 74.50%。在 400 ℃、15N 条件下,AND-SD 和 ANDG-SD 的磨损率分别为 48.35% 和 64.31%。在 500 ℃ 时,ANDG-SD 的磨损率降低率最高,为 74.66%。在 300 ℃、施加 10N 负载时,A-SD、AND-SD 和 ANDG-SD 的 COF 值分别为 0.49、0.46 和 0.30。在 400 °C、施加 15N 负载时,A-SD 为 0.51,AND-SD 为 0.42,ANDG-SD 为 0.29。在 500 ℃、施加 20N 负载时,A-SD 为 0.54,ANDG-SD 为 0.40,ANDG-SD 为 0.24。由于 GNP 具有自润滑特性,能有效提高耐磨性,因此在 500 ℃、20N 的外加载荷下,COF 值的降幅最大。通过这项研究,可以认为所开发的混合涂层是在高工作温度下开发涂层的可靠途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation of Tribological Performance of Composite Nanodiamonds and Graphene Nanoplatelets-Reinforced Alumina Coatings at High Temperature

Multifaceted coatings are in high demand due to their remarkable tribological advantages and fortification from harsh environments. However, ceramics coatings perform well and offer excellent performance but are limited to high temperatures. In the present study, it is perceived that 0.1 wt% nanodiamonds and 1 wt% graphene nanoplatelets reinforced in Al2O3 offered improved wear-resisting properties at high temperatures from 300 to 500 °C. The measured relative density recorded was 94.45 ± 1.9, 95.45 ± 0.9, and 97.25 ± 1.9 for A-SD, AND-SD and ANDG-SD, respectively. The wear rate decrement on 10N, at 300 °C, of AND-SD was recorded at 50.12% and 74.50% in ANDG-SD. On 15N, at 400 °C, 48.35% for AND-SD and 64.31% for ANDG-SD were recorded. The highest wear rate reduction, i.e., 74.66%, was recorded in ANDG-SD at 500 °C. The COF value at an applied load of 10N at 300 °C was 0.49, 0.46, and 0.30 for A-SD, AND-SD, and ANDG-SD, respectively. At an applied load of 15N, at 400 °C, it was 0.51 for A-SD, 0.42 for AND-SD, and 0.29 for ANDG-SD. At an applied load of 20N, at 500 °C, 0.54 for A-SD, 0.40 for ANDG-SD, and 0.24 for ANDG-SD were recorded. The maximum decrement in COF value was observed at an applied load of 20N, at 500 °C, due to GNP’s self-lubricating properties, which have the exceptional caliber to enhance wear resistance. Through this study, it has been supposed that developed hybrid coatings could be a robust path for developing coatings at high working temperatures.

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来源期刊
MAPAN
MAPAN 工程技术-物理:应用
CiteScore
2.30
自引率
20.00%
发文量
91
审稿时长
3 months
期刊介绍: MAPAN-Journal Metrology Society of India is a quarterly publication. It is exclusively devoted to Metrology (Scientific, Industrial or Legal). It has been fulfilling an important need of Metrologists and particularly of quality practitioners by publishing exclusive articles on scientific, industrial and legal metrology. The journal publishes research communication or technical articles of current interest in measurement science; original work, tutorial or survey papers in any metrology related area; reviews and analytical studies in metrology; case studies on reliability, uncertainty in measurements; and reports and results of intercomparison and proficiency testing.
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