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首页> 外文期刊>Journal of industrial and engineering chemistry >Room temperature electroless Ni-coating on boron particles: Physicochemical and oxidation-resistance properties
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Room temperature electroless Ni-coating on boron particles: Physicochemical and oxidation-resistance properties

机译：硼颗粒室温度化学镀Ni涂层：物理化学和抗氧化性

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摘要

Ni nanoparticles were coated on irregularly shaped micron sized boron particles by facile electroless Ni-deposition method. Four kinds of Ni-coated boron particles were prepared using four different simple paths during the electroless deposition process: no rinsing and no drying (Path A), only drying (Path B), both rinsing and drying (Path C), and only rinsing (Path D). Surface morphology confirmed the Ni-nanoparticles coating on the surface of boron particles. The size of the Ni nanoparticles varied between 10 and 120 nm with respect to the chosen paths used for preparation. The Ni nanoparticle's size was also studied using TEM and found to be consistent with the surface morphology results. XRD measurement of the Ni-coated boron particles showed the formation of crystalline Ni nanoparticles. EDAX and XPS results showed the presence of the primary B and Ni elements in the obtained samples. Thermogravimetric analysis conducted in air atmosphere found the boron particles had enhanced oxidation resistance after the coating of Ni nanoparticles. The Ni-coated boron particles showed a shift in exothermic peak to a lower temperature and higher heat evolution than the pure boron, recommending the use of Ni-coated boron particles in solid fuel in missile/rocket engines, and high temperature applications. (C) 2020 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：通过容易化学型Ni沉积方法涂覆Ni纳米颗粒在不规则形状的微米尺寸的硼颗粒上。在无电沉积过程中使用四种不同的简单路径制备四种Ni涂覆的硼颗粒：无漂洗和无干燥（路径a），仅干燥（路径b），漂洗和干燥（路径c），并且仅漂洗（路径d）。表面形态学证实了硼颗粒表面上的Ni纳米颗粒涂层。 Ni纳米颗粒的尺寸相对于用于制备的所选路径而在10至120nm之间变化。还使用TEM研究了Ni纳米粒子的尺寸，发现与表面形态结果一致。 Ni涂覆的硼颗粒的XRD测量显示结晶Ni纳米颗粒的形成。 edax和XPS结果显示出在所获得的样品中存在初级B和Ni元素。在空气气氛中发现的热重分析发现硼颗粒在Ni纳米颗粒涂覆后具有增强的抗氧化性。 Ni涂覆的硼颗粒显示出放热峰的变化，比纯硼更低的温度和更高的热量进化，推荐在导弹/​​火箭发动机的固体燃料中使用Ni涂覆的硼颗粒，以及高温应用。 （c）2020朝鲜工业与工程化学学会。 elsevier b.v出版。保留所有权利。

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