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Home / Journal of Nanoscience and Nanotechnology, Volume 21, Number 7

Mechanical Properties and Rapid Sintering of Nanostructured WC-Al2O3-Al Hard Materials

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Authors: Kim, Seong-Eun; Shon, In-Jin

Source: Journal of Nanoscience and Nanotechnology, Volume 21, Number 7, July 2021, pp. 3929-3933(5)

Publisher: American Scientific Publishers

DOI: https://doi.org/10.1166/jnn.2021.19244

Nanostructured WC-Al2O3-Al composites was sintered using rapid high-frequency induction heated sintering (HFIHS) and the mechanical properties such as hardness and fracture toughness with consolidation were investigated. The HFIHS method induced a very fast densification nearly at the level of theoretical density and successfully prohibited grain growth, resulting in nano-sized grains. The fracture toughness was improved due to the consolidation facilitated by adding Al to WC-Al2O3 matrix. The WC-Al2O3 composites added with 5 and 10 vol.% Al showed higher hardness and fracture toughness compared with that of WC-Al2O3.

Keywords: Composite Materials; Mechanical Properties; Nanomaterials; Powder Technology; Sintering

Document Type: Research Article

Affiliations: Division of Advanced Materials Engineering, The Research Center of Hydrogen Fuel Cell, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea

Publication date: 01 July 2021

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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