Su Bazlı Nanoakışkanların Hazırlanmasında Kullanılan Yeni Yüzey Modifiye Fe3O4 Nanopartiküllerinin Uzun Vadeli Kararlılıklarının İncelenmesi

Nanofluids are produced by suspending different solid nano-size materials (metal and nonmetal) in a base liquid often used energy systems to increase thermal performance heat transfer rate. The main problem observed nanofluids applications is their instability. Researchers have developed proposed some solutions obtain stable nanofluids. One of the most important solutions, nanoparticles surface modification method. In this work, Fe3O4 were subjected chemical processes surfaces modified. Three modified synthesized, which Fe3O4@SiO2@Si(CH2)3-IM [Cl], Fe3O4@Si(CH2)3-IM Fe3O4@SiO2&Si(CH2)3-IM [Cl] nanoparticles. prepared 0.2% Vol. fraction using particles fluid was distilled water, stability for 3 months. ultrasonication 3.5 h homogeneous nanofluid. Not water-based nanofluid completely collapsed approximately 1 week. nanofluids, although sedimentation occurred, it that certain amount remained suspended even after analyses study Scanning Electron Microscope, X-Ray Diffraction, Transmission Microscope.