Synthesis of ZnO micro-rods on the cell walls of open celled Al foam and their effect on the sound absorption behavior

Ren, Yuelu; Wang, Kun; Zhu, Bo; Wang, Xinfu; Wang, Xingfu; Han, Fuzhu

doi:10.1016/j.matlet.2012.10.012

Cited by 25 publications

(9 citation statements)

References 10 publications

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“…Figure 8 showed that the sound absorption performance of non-woven fabric has greatly improved after combining with thin nanofiber membranes. For one thing, as thickness increased the spread path of sound waves extended, rendering more sound energy converted into heat [45]. For another, as shown in Table 1, the nanofiber membranes, pore size was small.…”

Section: Resultsmentioning

confidence: 99%

Sound absorption property of PVA/PEO/GO nanofiber membrane and non-woven composite material

Liu

Zuo

2019

Journal of Industrial Textiles

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Blend films based on polyvinyl alcohol/polyethylene oxide (70/30 wt%) undoped and doped with different concentration of graphene oxide were prepared by spiral vane electrospinning. Characteristic properties of the blend films were investigated by using X-ray diffraction and scanning electron microscopy. The sound absorption performance of the compositions (nanofiber membranes and needle punched non-woven fabric) was tested by an impedance tube. The sound absorption performance of non-woven fabric has greatly improved after combining with thin nanofiber membranes. With addition of graphene oxide, the fibers were intertwined in a loop and form a network, the areal density and surface roughness of the nanofiber membrane are reduced. Composites containing polyvinyl alcohol/polyethylene oxide nanofiber membranes and composites containing polyvinyl alcohol/polyethylene oxide/graphene oxide nanofiber membranes exhibited different sound absorption properties in different frequency bands. When the fiber coefficient of variation was small, the average sound absorption coefficient of the composite material was high. However, composites containing both polyvinyl alcohol/polyethylene oxide and polyvinyl alcohol/polyethylene oxide/graphene oxide nanofiber membranes had similar sound absorption properties, and the average sound absorption coefficient was greater than that of polyvinyl alcohol/polyethylene oxide composites.

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Section: Resultsmentioning

confidence: 99%

Sound absorption property of PVA/PEO/GO nanofiber membrane and non-woven composite material

Liu

Zuo

2019

Journal of Industrial Textiles

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“…As mentioned above, two mechanisms are responsible for the sound absorption characteristics of Al foams, i.e. , the viscous losses resulting from the air flow and the thermal losses originating from the friction between the air and the cell wall through the vibration of air in the pores [4,5,6,9]. It can be found after the PEO treatment that there are small pores at micrometer level distributed in the surface of the aluminum foams.…”

Section: Resultsmentioning

confidence: 99%

“…There are increasing studies on the sound absorption characteristics of the aluminum foams [4,5,6,7,8,9]. Lu et al presented an experimental and theoretical study for the sound absorption of aluminum foams with semi-open cells.…”

Section: Introductionmentioning

confidence: 99%

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Sound Absorption Characteristics of Aluminum Foams Treated by Plasma Electrolytic Oxidation

et al. 2015

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Open-celled aluminum foams with different pore sizes were fabricated. A plasma electrolytic oxidation (PEO) treatment was applied on the aluminum foams to create a layer of ceramic coating. The sound absorption coefficients of the foams were measured by an impedance tube and they were calculated by a transfer function method. The experimental results show that the sound absorption coefficient of the foam increases gradually with the decrease of pore size. Additionally, when the porosity of the foam increases, the sound absorption coefficient also increases. The PEO coating surface is rough and porous, which is beneficial for improvement in sound absorption. After PEO treatment, the maximum sound absorption of the foam is improved to some extent.

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“…Metallic foams have many unique functional properties, including energy absorption [1], sound absorption [2] and electromagnetic shielding [3]. Since the 1980s, these metallic foams have been developed as a result of commercialisation, and many researchers have focused completely on metallic foam development [4].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and compressive behaviour of an aluminium foam composite

Wei

Hou

et al. 2015

Journal of Alloys and Compounds

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Synthesis of ZnO micro-rods on the cell walls of open celled Al foam and their effect on the sound absorption behavior

Cited by 25 publications

References 10 publications

Sound absorption property of PVA/PEO/GO nanofiber membrane and non-woven composite material

Sound absorption property of PVA/PEO/GO nanofiber membrane and non-woven composite material

Sound Absorption Characteristics of Aluminum Foams Treated by Plasma Electrolytic Oxidation

Fabrication and compressive behaviour of an aluminium foam composite

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