Synthesis of cobalt boride nanoparticles using RF thermal plasma

Sooseok Choi, Lorico D S Lapitan, Yingying Cheng, Takayuki Watanabe

研究成果: ジャーナルへの寄稿記事

12 引用 (Scopus)

抄録

Nanosize cobalt boride particles were synthesized from the vapor phase using a 30 kW-4 MHz radio frequency (RF) thermal plasma. Cobalt and boron powder mixtures used as precursors in different composition and feed rate were evaporated immediately in the high temperature plasma and cobalt boride nanoparticles were produced through the quenching process. The X-ray diffractometry (XRD) patterns of cobalt boride nanoparticles prepared from the feed powder ratio of 1:2 and 1:3 for Co:B showed peaks that are associated with the Co2B and CoB crystal phases of cobalt boride. The XRD analysis revealed that increasing the powder feed rate results in a higher mass fraction and a larger crystalline diameter of cobalt boride nanoparticles. The images obtained by field emission scanning electron microscopy (FE-SEM) revealed that cobalt boride nanoparticles have a spherical morphology. The crystallite size of the particles estimated with XRD was found to be 18-22 nm.

元の言語英語
ページ(範囲)365-371
ページ数7
ジャーナルAdvanced Powder Technology
25
発行部数1
DOI
出版物ステータス出版済み - 1 1 2014

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Boron Compounds
Plasma Gases
Borides
Cobalt
Nanoparticles
Plasmas
Powders
X ray diffraction analysis
Boron
Crystallite size
Hot Temperature
Field emission
Quenching
Vapors
Crystalline materials
Crystals
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Mechanics of Materials

これを引用

Synthesis of cobalt boride nanoparticles using RF thermal plasma. / Choi, Sooseok; Lapitan, Lorico D S; Cheng, Yingying; Watanabe, Takayuki.

:: Advanced Powder Technology, 巻 25, 番号 1, 01.01.2014, p. 365-371.

研究成果: ジャーナルへの寄稿記事

Choi, Sooseok ; Lapitan, Lorico D S ; Cheng, Yingying ; Watanabe, Takayuki. / Synthesis of cobalt boride nanoparticles using RF thermal plasma. :: Advanced Powder Technology. 2014 ; 巻 25, 番号 1. pp. 365-371.
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