Riya Sebastian (Author), Mohanachandran Nair Sindhu Swapna (Author), Vimal Raj (Author), Sankaranarayana Iyer Sankararaman (Author)

Abstract

The paper explores the evolution of thermal behavior of the material by studying the variations in thermal diffusivity using the single beam thermal lens (TL) technique. For this purpose, the decomposition of Cu(OH)2 into CuO is studied in a time range up to 120 h, by subjecting the sample to morphological, structural, and spectroscopic characterizations. The time evolution of thermal diffusivity can be divided into three regions for demonstrating the dynamics of the reaction. When the reaction is complete, the thermal diffusivity is also found to be saturated. In addition to the morphological modifications, from rods to flakes, the variations in the amount of hydroxyl group are attributed to be responsible for the enhancement of base fluid’s thermal diffusivity by 165%. Thus the study unveils the role of hydroxyl groups in the thermal behavior of CuO.

Keywords

thermal diffusivity;CuO;thermal lens;morphology;hydroxyl groups;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UNG - University of Nova Gorica
UDC: 53
COBISS: 113753091 Link will open in a new window
ISSN: Y506-4309
Views: 433
Downloads: 0
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Other data

URN: URN:SI:UNG
Pages: str. 067801-1-067801-6
Volume: ǂVol. ǂ30
Issue: ǂno. ǂ6
Chronology: 2021
DOI: 10.1088/1674-1056/abd9b5
ID: 15822803