Related Experiment Video
Updated: Dec 30, 2025
Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
Published on: February 19, 2018
Mechanochemical Synthesis and Rapid Consolidation of Nanostructured Nb-ZrO₂ Composite
Seong-Eun Kim1, Jin-Kook Yoon2, In-Jin Shon1
1Division of Advanced Materials Engineering and Research Center of Hydrogen Fuel Cell, Chonbuk National University, Jeonju-si, Jeollabuk-do, 561-756, Republic of Korea.
Abstract:
Nb₂O5 and Zr powders at a molar ratio of 1:2.5 were milled using a high-energy ball mill. The mixture powders produced Nb and ZrO₂ nanopowders through a solid replacement reaction (Nb₂O5+ 2.5Zr 2Nb + 2.5ZrO₂). The synthesized nanopowders were consolidated via high-frequency induction heated sintering (HFIHS) within two min. The mechanical properties (hardness and fracture toughness) of nanostructured 2Nb-2.5ZrO₂ composite were then evaluated. Both the hardness and fracture toughness of the 2Nb-2.5ZrO₂ composite were higher than those of monolithic ZrO₂.
