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- Title
Novel Morphology for NiWMo Carbides Obtained by Mechanical Alloying and Quenching.
- Authors
Rivera Olvera, Jesús Noé; Hernández Maya, Luis; Diaz Barriga Arceo, Lucia Graciela
- Abstract
In the present work, the synthesis and decomposition of low-dimensional materials from a Ni 15 Mo 25 W 10 C 50 system produced by mechanical alloying was reported. During the milling process, the resultant phases were WMoC and NiC, and after sintering and quenching, MoNi 3 , WMo, Ni 4 W, WC, MoNi and Mo 2 C were found. The samples were analyzed by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Nanotubes with the lengths ranging from 500 nm to 2 μ m, spheres and novelty globular particles with sizes ranging from 40 to 600 nm as well as "petal-like" estructure were observed. The results revealed the formation of a microstructure with morphology similar to spinodal decomposition followed by a sequence of invariant reactions leading the production of modulated and novel branched structures. We proposes a theoretical mechanism of formation that is associated with the modulated structure observed after quenching.
- Subjects
MECHANICAL alloying; SCANNING electron microscopy; CARBIDES; X-ray spectroscopy
- Publication
C, 2024, Vol 10, Issue 1, p11
- ISSN
2311-5629
- Publication type
Article
- DOI
10.3390/c10010011