Promising rare-earth high-entropy ceramic driving foamed silicon rubber composite to reduce 100–300 Hz low-frequency noise - Details

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Abstract：

Low-frequency　noise　(20–300　Hz)　is　harmful　to　humans　and　difficult　to　eliminate　by　traditional　acoustic　materials.　Rare-earth　high-entropy　ceramic　driving　foamed　silicone　rubber　composites　were　successfully　designed　and　prepared　as　potential　low-frequency　noise　absorbers.　The　sound　absorption　coefficient　(SAC)　of　the　composite　doped　with　3　wt%　(Sm0.2Eu0.2Gd0.2Tm0.2Yb0.2)2Zr2O7　powder　showed　a　1-fold　increase　in　the　range　of　130.0–152.5　Hz.　The　composite　doped　with　10　wt%　(Sm0.2Eu0.2Gd0.2Tm0.2Yb0.2)CrO3　powder　and　3　wt%　(Sm0.2Eu0.2Gd0.2Tm0.2Yb0.2)2W3O12　powder　showed　an　8-fold　SAC　increase　from　145.0　to　160.0　Hz　and　from　147.5　to　165.0　Hz.　Compared　with　foamed　silicone　rubber,　the　three　kinds　of　composites　have　great　potential　for　application　in　the　field　of　low-frequency　sound　absorption.　©　2022　Elsevier　B.V.

Keyword：

Entropy Europium compounds Rare earths Silicones Sound insulating materials

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[ 1 ] [Zhou, Zijian]College of Chemical Engineering, Fuzhou University, Fuzhou; 350116, China
[ 2 ] [Zhou, Zijian]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 3 ] [Zhou, Zijian]Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen; 361021, China
[ 4 ] [Zhou, Zijian]Advanced Energy Science and Technology Guangdong Laboratory, Huizhou; 516003, China
[ 5 ] [Xue, Liyan]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 6 ] [Xue, Liyan]Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen; 361021, China
[ 7 ] [Xue, Liyan]Advanced Energy Science and Technology Guangdong Laboratory, Huizhou; 516003, China
[ 8 ] [Yang, Fan]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 9 ] [Yang, Fan]Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen; 361021, China
[ 10 ] [Yang, Fan]Advanced Energy Science and Technology Guangdong Laboratory, Huizhou; 516003, China
[ 11 ] [Jiang, Zhengming]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 12 ] [Jiang, Zhengming]Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen; 361021, China
[ 13 ] [Jiang, Zhengming]Advanced Energy Science and Technology Guangdong Laboratory, Huizhou; 516003, China
[ 14 ] [Wang, Kaixian]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 15 ] [Wang, Kaixian]Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen; 361021, China
[ 16 ] [Wang, Kaixian]Advanced Energy Science and Technology Guangdong Laboratory, Huizhou; 516003, China
[ 17 ] [Xie, Meiying]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
[ 18 ] [Xie, Meiying]Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen; 361021, China
[ 19 ] [Xie, Meiying]Advanced Energy Science and Technology Guangdong Laboratory, Huizhou; 516003, China
[ 20 ] [Chen, Heng]Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen; 361021, China

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Source ：

Materials Letters

ISSN： 0167-577X

Year： 2022

Volume： 313

3 . 0

JCR@2022

2 . 7 0 0

JCR@2023

ESI HC Threshold：91

JCR Journal Grade：2

CAS Journal Grade：3

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WoS CC Cited Count：

SCOPUS Cited Count： 4

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 1

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