Experimental investigation for stability and surface properties of TiO2 and Al2O3 water-based nanofluids

Das, Probal Kumar; Mallik, Arnab Kumar; Molla, Altaf Hossain; Santra, Apurba Kumar; Ganguly, Ranjan; Saha, Abhijit; Kumar, Sugam; Aswal, Vinod K.

doi:10.1007/s10973-021-10894-0

Cited by 14 publications

(2 citation statements)

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“…However, exploring the full potential of Al 2 O 3 water-based nanofluids requires overcoming challenges related to achieving excellent dispersion or stability of the nanoparticles 8 . Two common methods to improve nanofluid stabilization are by using sonicator or surfactant.…”

Section: Introductionmentioning

confidence: 99%

“…However, excessive use of SDBS for nanofluid stabilization is not recommended 12 . A high concentration can cause surfactant to be over-adsorption, which could destabilize the nanofluid, while too little might not provide enough coverage to stabilize the nanoparticles 8 . Despite their potential, the practical application of nanofluids using SDBS faces critical challenges, particularly in long terms stability.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Stability, Superior Anti-Corrosive, and Tribological Performance of Al2O3 Water-based Nanofluid Lubricants with Tannic Acid and Carboxymethyl Cellulose over SDBS as Surfactant

Rahmadiawan,

Shi

2024

Sci Rep

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In this research work, the stability, tribological, and corrosion properties of a water-based Al2O3 nanofluid (0.5 wt%) formulated with tannin acid (TA) and carboxymethyl cellulose (CMC) as dispersants or surfactants were investigated. For comparative purposes, sodium dodecylbenzene sulfonate (SDBS) was also incorporated. The stability of the nanofluid was assessed through zeta potential measurements and photo-capturing, revealing the effectiveness of TA and CMC in preventing nanoparticle agglomeration. Tribological properties were examined using a pin-on-disk apparatus, highlighting the tribofilm of Al2O3 that enhanced lubricating properties of the nanofluid by the SEM, resulting in reduced friction and wear of the contacting surfaces. Sample with the addition of both TA and CMC exhibited the best tribological performance, with a ~ 20% reduction in the friction coefficient and a 59% improvement in wear rate compared to neat nanofluid without TA and CMC. Additionally, the corrosion resistance of the nanofluids were evaluated via weight loss and electrochemical impedance spectroscopy. The nanofluid sample containing both TA and CMC exhibited the lowest corrosion rate, with 97.6% improvement compared to sample without them. This study provides valuable insights into the potential applications of TA and CMC-based Al2O3 nanofluids as effective and environmentally friendly solutions for coolant or lubrication in cutting processes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%