在硬盘驱动器中打破2纳米屏障,使用单层无形碳覆盖层
Hongji Zhang1,2, Artem K Grebenko2, Dmitrii Litvinov1,3
1Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore.
Advanced materials (Deerfield Beach, Fla.)
|February 6, 2026
概括
单层无形碳 (MAC) 为硬盘驱动器 (HDD) 提供了优质的保护层,使得存储密度更高. 这种超薄,稳定的涂层解决了先进数据存储解决方案的传统碳覆盖层的局限性.
科学领域:
- 材料科学 材料科学 材料科学
- 数据存储技术 数据存储技术
背景情况:
- 人工智能 (AI) 推动了对大规模数据存储的需求,使硬盘驱动器 (HDD) 对数据中心至关重要.
- 在硬盘中增加区域存储密度对于AI至关重要,但受到传统的碳覆盖层 (COC) 的限制.
- 像热辅助磁记录 (HAMR) 这样的下一代技术需要超薄,热稳定的保护层,超出目前的钻石状碳 (DLC) 能力.
研究的目的:
- 引入和评估单层无形碳 (MAC) 作为HDD介质的新型保护层.
- 评估MAC适用于下一代硬盘的适用性,特别是实现超高的存储密度.
- 在与先进磁记录技术相关的条件下证明MAC的性能.
主要方法:
- 在低温 (~300°C) 的异质硬盘表面 (Fe,Pt,SiO2) 上直接生长单层无形碳 (MAC).
- 标志着MAC的厚度均性 (0.8nm),耐腐蚀性,表面粗性和热稳定性 (~450°C).
- 评估MAC的摩擦系数和无滑剂运行潜力.
主要成果:
- 在2.5英寸磁盘上实现了均的0.8纳米MAC涂层.
- 马克表现出高耐腐蚀性和低粗性,与2.5纳米商业COC相美.
- 在类似HAMR的条件下表现出极好的热稳定性和低摩擦系数.
结论:
- 单层无形碳 (MAC) 是先进硬盘的传统碳覆盖 (COC) 的优质替代品.
- MAC使得能够达到10 Tb/in2的HDD媒体的开发成为可能,满足数字时代的需求.
- MAC的特性促进了数据存储技术的进步,支持人工智能驱动的数据需求.
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