Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

Effect of Sintering Temperature on the Properties of CuAlO2 Synthesized from Nanosized Precursors for Application in Smart Infrastructure Systems

Version 2 : Received: 20 July 2022 / Approved: 21 July 2022 / Online: 21 July 2022 (02:53:40 CEST)

A peer-reviewed article of this Preprint also exists.

Ghotbi, S.; Mousa, M.A.; Assi, L.N.; Ghahari, S. Effect of Sintering Temperature on the Properties of CuAlO2 Synthesized from Nanosized Precursors for Application in Smart Infrastructure Systems. Infrastructures 2022, 7, 97. Ghotbi, S.; Mousa, M.A.; Assi, L.N.; Ghahari, S. Effect of Sintering Temperature on the Properties of CuAlO2 Synthesized from Nanosized Precursors for Application in Smart Infrastructure Systems. Infrastructures 2022, 7, 97.

Abstract

The current study aimed to evaluate the influence of different sintering temperatures on the properties of copper aluminum oxide (CuAlO2) pellets synthesized from copper oxide (CuO) and aluminum hydroxide (Al(OH)3) for application in smart infrastructure systems. The pellets were sintered at 400 K, 1000 K, and 1300 K, in the presence of nitrogen gas flow to reduce the amount of oxygen availability. The CuAlO2 sintered nanoparticles were chemically analyzed by X-ray diffractometry, and the nanostructure of the materials was studied by scanning electron microscopy. The transmittance of the sintered materials was examined by ultraviolet/visible (UV/Vis) spectrophotometry, and 88% transparency was observed for the pellets sintered at 1300 K. Electrical conductivity was measured at 0.905 mS/cm, indicating a semiconducting behavior.

Keywords

copper aluminum oxide; sintering; electrical conductivity; activation energy

Subject

Engineering, Mechanical Engineering

Comments (1)

Comment 1
Received: 21 July 2022
Commenter: Seyed Ali Ghahari
Commenter's Conflict of Interests: Author
Comment: Peer-reviewed article
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