Yüzey Modifiye Edilmiş Bakır Sülfür Nanopartiküllerinin Tribolojik Davranışlarının İncelemesi

Year 2025, Volume: 13 Issue: 4, 1719 - 1731, 30.10.2025

Alper Uğur

https://doi.org/10.29130/dubited.1735151

Abstract

Günümüzde, çeşitli alanlardaki teknolojideki ilerlemeler, hem makinelerde hem de araçlarda kullanılan makine bileşenlerinin kalitesini, dayanıklılığını ve performansını artırmaktadır. Bu değişim süreci, uzun süre temas halinde olan parçaların yüksek basınçlara ve sıcaklıklar koşullarına dayanabilmesini gerektirmektedir. Çözümlerden biri olarak, yağlayıcı ve yağ performans arttırıcı nano yağlayıcı katkı maddelerinin kullanımına olan talep artmaktadır. Bu çalışmada, solvotermal bir yöntem kullanarak CuS ve Tween 80 (TW) kaplı CuS nanopartiküllerini (NP'ler) kükürt içeren yağlayıcı katkı maddeleri olarak sentezlenmiştir. Hem yüzeyi modifiye edilmemiş CuS hem de yüzeyi TW kaplı CuS NP'lerinin parçacık boyutlarının küresel olduğu ve boyutlarının 15 nm'den küçük olduğu belirlendi. Baz yağ ile karşılaştırıldığında, %0,05 (ağırlıkça) konsantrasyonda yüzeyi modifiye edilmemiş CuS NP'lerinin eklenmesi, test pimlerinin kütle kaybını en az %50,2 oranında azalttı. Ancak, TW kaplı CuS NP'ler kullanıldığında %32,4'e kadar bir aşınma azalması sağlanmıştır.

Keywords

Bakır sülfür (CuS) , Aşırı basınç nano katkı maddeleri , Tween 80 , Aşınma önleyici

Tribological Examination of Surface-Modified Copper Sulfide Nanoparticles

Abstract

Today, advancements in technology across various fields are enhancing the quality, durability, and performance of machine components used in both machinery and vehicles. This evolution necessitates that parts in contact for extended periods can withstand high pressures and temperatures. Lubrication is one of the solutions. Thus, the demand for nano-lubricant additives is rising to improve the performance of lubricants and oils. In this study, bare CuS and Tween 80 (TW)-capped CuS nanoparticles (NPs) were synthesized as sulfur-containing lubricant additives using a solvothermal method. The particle sizes of both bare CuS and TW-capped CuS NPs were determined to be spherical, with sizes less than 15 nm. The addition of bare CuS NPs to 5W-30 base oil at a concentration of 0.05 (wt.%) reduced the wear rate by 50.2%, while TW-coated CuS NPs reduced the wear by 32.4%, compared to the base oil under high load level.

Keywords

Copper Sulfide (CuS) , Extreme Pressure Nano Additives , Tween 80 , Anti-wear

Ethical Statement

This study does not involve human or animal participants. All procedures followed scientific and ethical principles, and all referenced studies are appropriately cited.

Thanks

The author expresses gratitude to İ. Avan and M. Candan for allowing the use of their research laboratory equipment

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