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Flame synthesis of carbon nanostructures on Ni-plated hardmetal substrates.

Zhu H, Kuang T, Zhu B, Lei S, Liu Z, Ringer SP - Nanoscale Res Lett (2011)

Bottom Line: In this article, we demonstrate that carbon nanostructures could be synthesized on the Ni-plated YG6 (WC-6 wt% Co) hardmetal substrate by a simple ethanol diffusion flame method.The growth mechanism of such carbon nanostructures is discussed.This work may provide a strategy to improve the performance of hardmetal products and thus to widen their potential applications.

View Article: PubMed Central - HTML - PubMed

Affiliation: Analytical and Testing Center, South China University of Technology, Guangzhou 510640, China. tckuang@scut.edu.cn.

ABSTRACT
In this article, we demonstrate that carbon nanostructures could be synthesized on the Ni-plated YG6 (WC-6 wt% Co) hardmetal substrate by a simple ethanol diffusion flame method. The morphologies and microstructures of the Ni-plated layer and the carbon nanostructures were examined by various techniques including scanning electron microscopy, X-ray diffraction, and Raman spectroscopy. The growth mechanism of such carbon nanostructures is discussed. This work may provide a strategy to improve the performance of hardmetal products and thus to widen their potential applications.

No MeSH data available.


The SEM morphology and XRD pattern of the Ni-plated layer deposited on the YG6 hardmetal substrate. (a) SEM morphology and (b) XRD pattern.
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Figure 3: The SEM morphology and XRD pattern of the Ni-plated layer deposited on the YG6 hardmetal substrate. (a) SEM morphology and (b) XRD pattern.

Mentions: Figure 3 shows the SEM morphology and XRD pattern of the as-prepared Ni-plated layer on the YG6 hardmetal substrate. The Ni-plated layer is extremely bright, smooth, and compact, and no peeling and cracking were visible. The SEM result shows that the Ni particles are slightly inhomogeneous in sizes and orientations (Figure 3a). The large particles are 0.5 to 1.0 μm and the small ones are 50 to 100 nm in diameter. The XRD pattern (Figure 3b) reveals that the major composites were the matrix WC and metal Ni, and no other impurities were detected in the Ni-plated layer. Moreover, the sharp peaks suggest that both the components of WC and Ni crystallized very well in the reported conditions. According to the Debye-Scherra formula, the calculated Ni particle size is around 0.5 μm, which is in good agreement with the SEM observation (Figure 3a).


Flame synthesis of carbon nanostructures on Ni-plated hardmetal substrates.

Zhu H, Kuang T, Zhu B, Lei S, Liu Z, Ringer SP - Nanoscale Res Lett (2011)

The SEM morphology and XRD pattern of the Ni-plated layer deposited on the YG6 hardmetal substrate. (a) SEM morphology and (b) XRD pattern.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211419&req=5

Figure 3: The SEM morphology and XRD pattern of the Ni-plated layer deposited on the YG6 hardmetal substrate. (a) SEM morphology and (b) XRD pattern.
Mentions: Figure 3 shows the SEM morphology and XRD pattern of the as-prepared Ni-plated layer on the YG6 hardmetal substrate. The Ni-plated layer is extremely bright, smooth, and compact, and no peeling and cracking were visible. The SEM result shows that the Ni particles are slightly inhomogeneous in sizes and orientations (Figure 3a). The large particles are 0.5 to 1.0 μm and the small ones are 50 to 100 nm in diameter. The XRD pattern (Figure 3b) reveals that the major composites were the matrix WC and metal Ni, and no other impurities were detected in the Ni-plated layer. Moreover, the sharp peaks suggest that both the components of WC and Ni crystallized very well in the reported conditions. According to the Debye-Scherra formula, the calculated Ni particle size is around 0.5 μm, which is in good agreement with the SEM observation (Figure 3a).

Bottom Line: In this article, we demonstrate that carbon nanostructures could be synthesized on the Ni-plated YG6 (WC-6 wt% Co) hardmetal substrate by a simple ethanol diffusion flame method.The growth mechanism of such carbon nanostructures is discussed.This work may provide a strategy to improve the performance of hardmetal products and thus to widen their potential applications.

View Article: PubMed Central - HTML - PubMed

Affiliation: Analytical and Testing Center, South China University of Technology, Guangzhou 510640, China. tckuang@scut.edu.cn.

ABSTRACT
In this article, we demonstrate that carbon nanostructures could be synthesized on the Ni-plated YG6 (WC-6 wt% Co) hardmetal substrate by a simple ethanol diffusion flame method. The morphologies and microstructures of the Ni-plated layer and the carbon nanostructures were examined by various techniques including scanning electron microscopy, X-ray diffraction, and Raman spectroscopy. The growth mechanism of such carbon nanostructures is discussed. This work may provide a strategy to improve the performance of hardmetal products and thus to widen their potential applications.

No MeSH data available.