Improvement of thermal properties of water and ethylene glycol by metallic and ceramic dispersion

Autor:	Sripooja Mishra, Manaswini Chinara, A. Basu, Mohan Nuthalapati
Rok vydání:	2016
Předmět:	Materials science Conductivity Coolant chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium Particle Ceramic Crystallite Composite material Dispersion (chemistry) Ball mill Ethylene glycol
Zdroj:	IOP Conference Series: Materials Science and Engineering. 115:012033
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/115/1/012033
Popis:	Owing to rising need for more energy efficient coolant systems, the current work focuses on synthesis of Alumina-water, Alumina-Ethylene Glycol (EG), Zirconium-water, Zirconium-Ethylene Glycol particle dispersion systems for use as quenchants, with varying volume of particles obtained using a top-down approach of 10h ball milling. Characterisation of the particles was performed using XRD analysis, also measuring the crystallite size. Particle size measurement was also undertaken by using particle size analyzer, further corroborated by SEM analysis. A zeta-potential study was carried out to obtain the iso electric point for maintaining stability. Synthesis of the dispersions at different volume % of powders were followed by thermal conductivity measurements with water and EG base fluids, with and without addition of oleic acid as a surfactant. The stability studies were performed by visual observation. From the results it was observed that Al2O3 and Zr can increase conductivity of EG more prominently than water and stability of Zr based suspensions are better than Al2O3. Oleic acid did not play any positive role in these systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::843769eeafbac335ac73f990659233ef https://doi.org/10.1088/1757-899x/115/1/012033 Zobrazit plný text záznamu