Thermal Diffusivity of Multi-Walled Carbon Nanotubes Dispersed in Oleic Acid

Alex Junior de Freitas Cabral; Clascidia Aparecida Furtado; Cristiano Fantini; Petrus Alcantara Jr.

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Thermal Diffusivity of Multi-Walled Carbon Nanotubes Dispersed in Oleic Acid

机译：分散在油酸中的多壁碳纳米管的热扩散率

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Suspensions of oleic acid with carbon nanotubes were prepared. Using a thermal lens experimental setup, the thermal diffusivity of oleic acid in presence of multi-walled carbon nanoparticles with different concentrations was measured. The results show that, the thermal diffusivity increases with the increase of nanotubes concentration, enhancing the thermal diffusivity in the solution. Modification in the thermal diffusivity as function of quantity of carbon nanotubes was investigated, for a constant volume of oleic acid 10 mL. The diffusivities were obtained by using the thermal lens spectrometry technique. The characteristic time constant of the transient thermal lens was obtained by fitting the theoretical expression to the experimental data.

机译：制备了具有碳纳米管的油酸悬浮液。使用热透镜实验装置，在存在不同浓度的多壁碳纳米颗粒的情况下，测量了油酸的热扩散率。结果表明，随着纳米管浓度的增加，热扩散率增加，溶液中的热扩散率增加。对于恒定体积的油酸10 mL，研究了热扩散率随碳纳米管数量的变化。通过使用热透镜光谱法获得扩散率。通过将理论表达式与实验数据进行拟合，可以获得瞬态热透镜的特征时间常数。

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来源
《Journal of nano research》 |2013年第2013期|125-130|共6页
作者
Alex Junior de Freitas Cabral; Clascidia Aparecida Furtado; Cristiano Fantini; Petrus Alcantara Jr.;
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作者单位

Faculdade de Flsica, Universidade Federal do Para, 66075-110, Belem, PA, Brazil;

Centro de Desenvolvimento da Tecnologia Nuclear, Belo Horizonte, MG, Brazil;

lnstituto de CiSncias Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil;

Faculdade de Flsica, Universidade Federal do Para, 66075-110, Belem, PA, Brazil;

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正文语种 eng
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关键词
thermal diffusivity; thermal lens spectroscopy; carbon nanotubes; oleic acid;

机译：热扩散率热透镜光谱学;碳纳米管;油酸;

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Thermal Diffusivity of Multi-Walled Carbon Nanotubes Dispersed in Oleic Acid

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