PREPARATION OF WS2 NANOSHEETS FOR LUBRICANT ADDITIVES

Phạm Minh Tân; Seng Ranika; Hoàng Tiến Đạt; Nguyễn Văn Trường

doi:10.34238/tnu-jst.8095

PREPARATION OF WS2 NANOSHEETS FOR LUBRICANT ADDITIVES

About this article

Received: 08/06/23 Revised: 23/06/23 Published: 23/06/23

Authors

1. Pham Minh Tan , TNU - University of Technology
2. Seng Ranika, TNU - University of Technology
3. Hoang Tien Dat, TNU - University of Technology
4. Nguyen Van Truong, TNU - University of Technology

Abstract

In this research, we studied and fabricated the two-dimensional nanomaterials WS₂ by liquid phase exfoliation assisted by an ultrasonic process. X-ray diffraction (XRD) investigated the material structural properties. The 2H semiconductor phase of WS₂ was maintained after the exfoliation process. The nanoparticle size was studied using scanning electron microscopy (SEM). The lateral dimension size of WS₂ plates was dramatically reduced from dozens of micrometers to a few micrometers. The optical properties were studied by Raman scattering spectroscopy. The results indicated that the bulk WS₂ counterpart was successfully exfoliated to the 3 – 12 atomic layers’ sheets. The lubricant additives with 0.15 weight % of E-WS₂ were used to drill the composite plate with significant performance improvement compared to those without the nanomaterials mixing. This nanofluid show outstanding potential to be a promising candidate for the lubricant in the process of drilling different types of materials. In addition, WS₂ nanosheets also play an essential role in preparing nanofluids.

Keywords

2D materials; Graphene/ WS2 composite; Mechanical engineering; Composite drilling; Nanofluid

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DOI: https://doi.org/10.34238/tnu-jst.8095

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