MoS2/Ta/WB2纳米多层膜优越的高温润滑性能

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-06-01 DOI:10.1016/j.ceramint.2025.02.156

Guoyuan Hou , Zhenrong Gao , Xin Fan , Mingjun Cui , Siming Ren

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引用次数: 0

摘要

为了解决二硫化钼（MoS2）在高温环境下的性能限制，我们使用不平衡磁控溅射技术，制备了由MoS2和二硼化钨（WB2）纳米层交替组成的三明治状纳米多层膜，并添加了Ta掺杂剂。该结构在宽温度范围内（25-400℃）表现出优异的机械性能，在400℃时达到0.084的高硬度弹性模量（H/E）值。在高接触应力下，薄膜在300°C下保持0.06的低摩擦系数，这是由于形成了由MoS2（002）纳米片封装的氧化物纳米颗粒（如MoO3、WO3、Ta2O5）组成的摩擦诱导摩擦膜。这种设计为开发能够承受极端操作条件的高性能润滑剂提供了一种有前途的策略。

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Superior high-temperature lubrication of MoS2/Ta/WB2 nanomultilayer film

To address the performance limitations of molybdenum disulfide (MoS₂) in high-temperature environments, we fabricate a sandwich-like nanomultilayer film composed of alternating MoS₂ and tungsten diboride (WB₂) nanolayers, with Ta dopants, using unbalanced magnetron sputtering. This architecture demonstrates superior mechanical properties over a wide temperature range (25–400 °C), achieving a high hardness-to-elastic modulus (H/E) value of 0.084 at 400 °C. The film also maintains a low friction coefficient of 0.06 at 300 °C under high contact stress, enabled by the formation of a friction-induced tribofilm consisting of oxide nanoparticles (e.g., MoO₃, WO₃, Ta₂O₅) encapsulated by MoS₂ (002) nanosheets. This design provides a promising strategy for developing high-performance lubricants capable of withstanding extreme operating conditions.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.