【摘要】：通過一種簡單而經(jīng)濟(jì)的電鍍方法在304不銹鋼表面制備鎳-膨脹石墨復(fù)合材料,并對其導(dǎo)熱性能進(jìn)行研究。通過掃描電子顯微鏡(SEM)、拉曼光譜(Raman)、X射線衍射(XRD)和能譜儀(EDS)對鍍層的顯微形貌及結(jié)構(gòu)進(jìn)行表征,通過激光粒度分布儀對膨脹石墨的粒徑進(jìn)行測定,通過激光導(dǎo)熱儀測定復(fù)合鍍層的導(dǎo)熱系數(shù)。結(jié)果表明:膨脹石墨呈片狀結(jié)構(gòu),缺陷少且復(fù)合鍍前后缺陷基本不變。復(fù)合鍍層中膨脹石墨的原子數(shù)分?jǐn)?shù)為5.98%,且均勻分布。鎳-膨脹石墨/304不銹鋼的導(dǎo)熱系數(shù)為16.02 W/(m·K),相比于鎳/304不銹鋼和304不銹鋼,其導(dǎo)熱系數(shù)分別提高了9.7%和23.8%。膨脹石墨與304不銹鋼表面及鎳鍍層接觸良好,構(gòu)成了良好的導(dǎo)熱通道,提高了鎳鍍層的導(dǎo)熱性能。
[Abstract]:Nickel-expanded graphite composites were prepared on 304 stainless steel surface by a simple and economical electroplating method, and their thermal conductivity was studied. The microstructure and morphology of the coating were characterized by scanning electron microscope (SEM),) Raman spectroscopy (Raman), X-ray diffraction (XRD) and energy dispersive spectrometer (EDS). The particle size of expanded graphite was measured by laser particle size distribution instrument and the thermal conductivity of the composite coating was measured by laser thermal conductivity meter. The results show that the expanded graphite is flake structure, the defects are few and the defects are basically unchanged before and after composite plating. The atomic fraction of expanded graphite in the composite coating is 5.98% and evenly distributed. The thermal conductivity of nickel-expanded graphite / 304stainless steel is 16.02W / (m 路K), which is 9.7% and 23.8% higher than that of nickel / 304stainless steel and 304stainless steel, respectively. Expanded graphite has good contact with 304 stainless steel surface and nickel coating, which constitutes a good heat conduction channel and improves the thermal conductivity of nickel coating.
【作者單位】： 廣西現(xiàn)代職業(yè)技術(shù)學(xué)院資源工程系;廣西師范大學(xué)化學(xué)與藥學(xué)學(xué)院;黃岡師范學(xué)院化工學(xué)院;百色學(xué)院化學(xué)與生命科學(xué)系;
【基金】：國家自然科學(xué)基金(21473042) 廣西自然科學(xué)重點(diǎn)項(xiàng)目(2013GXNSFDA019027)
【分類號】：TG174.4
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本文編號：2505045