Fabrication of Fe-TiB2 Nanocomposites by Spark-Plasma Sintering of a (FeB, TiH2) Powder Mixture

• Autorzy: Huynh X.-K. , Kim B.-W. , Kim J.-S.

Identyfikatory

DOI

10.24425/122440

• Języki publikacji: EN

Abstrakty

EN

Fe-40wt% TiB₂ nanocomposites were fabricated by mechanical activation and spark-plasma sintering of a powder mixture of iron boride (FeB) and titanium hydride (TiH₂). The powder mixture of (FeB, TiH₂) was prepared by high-energy ball milling in a planetary ball mill at 700 rpm for 3 h followed by spark-plasma sintering (SPS) at various conditions. Analysis of the change in relative sintered density and densification rate during sintering showed that a self-propagating high-temperature synthesis reaction occurs to form TiB₂ from FeB and Ti. A sintered body with relative density higher than 98% was obtained after sintering at 1150°C for 5 and 15 min. The microstructural observation of sintered compacts with the use of FE-SEM and TEM revealed that ultrafine particulates with approximately 5 nm were evenly distributed in an Fe-matrix. A hardness value of 83 HRC was obtained, which is equivalent to that of conventional WC-20 Co systems.

Słowa kluczowe

EN

Fe-TiB2 nanocomposite; mechanical activation; spark plasma sintering; self-propagating high-temperature synthesis reaction

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 2
• Strony: 1043--1047
• Opis fizyczny: Bibliogr. 17 poz., fot., rys.

Twórcy

autor

Huynh X.-K.

• Industrial University of Ho Chi Minh City, Faculty of Mechanical Technology, Ho Chi Minh City, Vietnam

autor

Kim B.-W.

• University of Ulsan, School of Electrical Engineering, Ulsan 44610, Republic of Korea

autor

Kim J.-S.

• University of Ulsan, School of Materials Science and Engineering, Ulsan 44610, Republic of Korea

Bibliografia

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Uwagi

EN

1. This work was supported by the 2016 Research Fund of University of Ulsan.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).