3D structurally advanced graphene oxide/h-BN hybrid for solid self-lubrication with enhanced thermal conductivity. (December 2022)

• Record Type: Journal Article
• Authors: Zhang, Nan; Zhang, Yaoming; Li, Song; Guo, Lihe; Yang, Zenghui; Zhang, Xinrui; Wang, Tingmei; Wang, Qihua
• Is Part Of: Tribology international. Volume 176(2022)
• Publication Date: 2022-12
• Subjects: Graphene oxide -- h-BN -- Electrostatic functionalization -- 3D structure; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2022.107918
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: Improving thermal conductivity is critical for tribological performance but remains a challenge. Here, a 3D structure with layered features is fabricated by electrostatic assembly of h - BN and GO nanosheets. The strategy for structural adjustment from macro to microscopic is beneficial for efficient phonon transport by reducing interfacial thermal resistance, which in turn promotes friction-reduction and wear resistance performance based on "synergistic lubrication". The superiority of the strategy is directly reflected in the excellent self-lubricating, wear-resistance properties, and outstanding thermal conductivity enhancement (1039.16 %) of the composite. Significantly, the comprehensive properties of epoxy-based composites are closely related to macro- and microgeometry of GO and h -BN, helping to reveal the relation between the structural design of multicomponent 2D fillers and tribology-based multifunctionality. Graphical Abstract: ga1