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The sound absorption performance of the highly porous silica ceramics prepared using freeze casting method
Du, ZP; Yao, DX; Xia, YF; Zuo, KH; Yin, JW; Liang, HQ; Zeng, YP
2020-09-01
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
Issue10Pages:5990
SubtypeArticle
AbstractHighly porous silica ceramics with unidirectional pores were prepared using the freeze casting method. By adjusting the solid content and freezing temperature, the porosity of the ceramics was tailored in the range of 78.20%-84.59% and pore size in the range of 8.4-71.4 mu m, respectively. Sound absorption properties of porous silica ceramics was studied and the effect of structural factors was systematically investigated. The results showed that higher porosity and smaller pores of the porous ceramics favored the sound absorption in the entire sound wave frequency. By backing the sample with small pore size porous ceramics, the sound absorption property was enhanced, particularly in the low and medium frequency range, thus the sound absorption peak shifted towards lower frequency. The presence of air gap in the back would also favor sound absorption in low and medium frequency range. The as-fabricated porous silica ceramics owed excellent sound absorption properties due to their unidirectional pores and low flow resistances.
DOI10.1111/jace.17300
WOS KeywordSI3N4 CERAMICS ; MECHANICAL-PROPERTIES ; MACROPOROUS CERAMICS ; FABRICATION ; MICROSTRUCTURE ; HONEYCOMB ; STRENGTH ; PORES ; PANEL
Language英语
WOS Research AreaMaterials Science
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27950
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Du, ZP,Yao, DX,Xia, YF,et al. The sound absorption performance of the highly porous silica ceramics prepared using freeze casting method[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2020(10):5990.
APA Du, ZP.,Yao, DX.,Xia, YF.,Zuo, KH.,Yin, JW.,...&Zeng, YP.(2020).The sound absorption performance of the highly porous silica ceramics prepared using freeze casting method.JOURNAL OF THE AMERICAN CERAMIC SOCIETY(10),5990.
MLA Du, ZP,et al."The sound absorption performance of the highly porous silica ceramics prepared using freeze casting method".JOURNAL OF THE AMERICAN CERAMIC SOCIETY .10(2020):5990.
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