THE PRODUCTION OF HfO2-HfB2 COMPOSITE POWDER FROM HfO2, B2O3 AND Mg BY SOLID STATE REACTION AND SUBSEQUENT ANNEALING

Authors

  • Ozge Balci Istanbul Technical University, Department of Metallurgical and Materials Engineering, Maslak 34469, Istanbul, Turkey Author
  • Duygu Agaogullari Istanbul Technical University, Department of Metallurgical and Materials Engineering, Maslak 34469, Istanbul, Turkey Author
  • Ismail Duman Istanbul Technical University, Department of Metallurgical and Materials Engineering, Maslak 34469, Istanbul, Turkey Author

DOI:

https://doi.org/10.66514/

Abstract

Hafnium dioxide-hafnium diboride (HfO2-HfB2) composite powder was synthesized by high-energy ball milling and subsequent annealing of powder mixtures containing stoichiometric amounts of HfO2, BB2O3 and Mg. Milling was carried out in various durations by using vibratory ball-mill with a ball-to-powder weight ratio of 10:1. The milled products were annealed in tube furnace with a heating and cooling rate of 10°C/min. under flowing Argon atmosphere. After annealing, the HfO2-HfB2 composite powder is obtained in the presence of magnesium oxide (MgO). The milled and annealed products were analyzed by X-ray diffraction (XRD) technique and scanning electron microscope (SEM).

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Published

18-04-2026

Issue

Vol. 18 No. 2 (2010): Solid State Science and Technology

Section

Articles

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Copyright (c) 2026 Solid State Science and Technology

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