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Impact of Various Input Parameters on the Preparation of Diff erent AlN Nanostructures by Hybrid Route of Hydrothermal and Carbothermal Reduction Nitridation Technique

A. Sakthisabarimoorthi Sang-Min Lee Sung-Soo Ryu¹ Dang-Hyok Yoon^†

School of Materials Science and Engineering , Yeungnam University , Gyeongsan 38541 , South Korea ¹Engineering Ceramic Center , Korea Institute of Ceramic Engineering and Technology , Icheon 17303 , South Korea

dhyoon@ynu.ac.kr

Korean Journal of Chemical Engineering, January 2024, 41(1), 147-155(9), https://doi.org/10.1007/s11814-024-00028-1

Abstract

Aluminum nitride (AlN) nanopowders with diff erent morphologies were prepared using a hybrid hydrothermal and carbothermal

reduction nitridation technique. The impact of pyrolysis on the preparation of AlN nanopowders was examined. The

eff ect of diff erent input parameters, such as the molar ratio of urea/alumina, hydrothermal reaction conditions, and nitridation

temperatures, on the formation of AlN nanostructures were studied. The hydrothermal treatment yielded the boehmite

precursor under diff erent reaction conditions (temperature 180–220

Keywords

AlN nanopowders · Hydrothermal · Pyrolysis · Nitridation