Synthesis of molybdenum carbide nanoparticles using pulsed wire discharge in mixed atmosphere of kerosene and argon

Synthesis of molybdenum carbide nanoparticles using pulsed wire discharge in mixed atmosphere of kerosene and argon

Pulsed wire discharge was used to prepare nanoparticles of molybdenum and its carbides from Mo wires in a gas mixture of argon and kerosene at pressures of 100, 50, and 25 kPa. The different pressures affected the carburization process and particle formation. The most effective pressure was 25 kPa,...

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Bibliographic Details
Published in:Journal of the American Ceramic Society Vol. 102; no. 12; pp. 7108 - 7115
Main Authors: Chu, Ngo Minh, Hieu, Nguyen Duy, Do, Dung Thi Mai, Sarathi, Ramanujam, Nakayama, Tadachika, Suematsu, Hisayuki
Format: Journal Article
Language:English
Published: Columbus Wiley Subscription Services, Inc 01-12-2019
Subjects:
Argon
Carburization (corrosion)
Carburizing
Discharge
Gas mixtures
Kerosene
Molybdenum
Molybdenum carbide
Nanoparticles
Particle size distribution
synthesis
Wire
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Summary:Pulsed wire discharge was used to prepare nanoparticles of molybdenum and its carbides from Mo wires in a gas mixture of argon and kerosene at pressures of 100, 50, and 25 kPa. The different pressures affected the carburization process and particle formation. The most effective pressure was 25 kPa, where the volume fraction of MoC was identified by Rietveld refinement of X‐ray diffraction data to be 98.4%. The particle size distribution was also obtained from transmission electron microscopy measurements, and the smallest geometric mean diameter was determined tobe 24.3 nm for the sample prepared at 25 kPa.
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.16621