Highly porous silica foams prepared via direct foaming with mixed surfactants and their sound absorption characteristics
文献类型：期刊论文
| 作者 | Du, ZP; Yao, DX; Xia, YF; Zuo, KH; Yin, JW; Liang, HQ; Zeng, YP |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2020-06-15 |
| 期号 | 9页码:12942 |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2020.02.063 |
| 文献子类 | Article |
| 英文摘要 | The highly porous silica ceramics were fabricated by direct foaming with mixed surfactants and the influence of silicon nitride addition and solid content on the microstructures and properties were investigated. The results showed that silicon nitride can impede the formation of cristobalite and facilitates the sintering of silica ceramics. When the addition of silicon nitride powders reached 15 wt%, the highest compressive strength of silica ceramic foams could be obtained. The porosity of silica ceramic foams was tailored in the range of 84.61%-91.35% by adjusting the solid content, and the compressive strength of the obtained ceramic foams ranged from 5.89 MPa to 0.94 MPa. Sound absorption characteristics of silica ceramics foams were investigated. With the porosity of ceramic foams increased from 84.61% to 91.35%, the sound absorption coefficients in the entire sound wave frequency were enhanced due to the reduction of flow resistances, besides, the sound absorption peak varied from 4200 Hz to 2300 Hz, and became more intense and sharper. |
| WOS关键词 | SI3N4 CERAMICS ; MECHANICAL-PROPERTIES ; CELL STRUCTURE ; MICROSTRUCTURE ; FABRICATION ; STRENGTH ; PORES ; PMMA |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27973]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Du, ZP,Yao, DX,Xia, YF,et al. Highly porous silica foams prepared via direct foaming with mixed surfactants and their sound absorption characteristics[J]. CERAMICS INTERNATIONAL,2020(9):12942. |
| APA | Du, ZP.,Yao, DX.,Xia, YF.,Zuo, KH.,Yin, JW.,...&Zeng, YP.(2020).Highly porous silica foams prepared via direct foaming with mixed surfactants and their sound absorption characteristics.CERAMICS INTERNATIONAL(9),12942. |
| MLA | Du, ZP,et al."Highly porous silica foams prepared via direct foaming with mixed surfactants and their sound absorption characteristics".CERAMICS INTERNATIONAL .9(2020):12942. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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