Preparation and structure of silicon oxycarbide aerogels fabricated by polymer derived ceramics method

Liu，Debao; Xue，Yahui

2022

10.1007/s10934-022-01389-w

JOURNAL OF POROUS MATERIALS   影响因子和分区

1380-2224

1573-4854

SiOC ceramic aerogels (SiOC CAs) were successfully fabricated through vacuum freeze-drying method combined with PDC process. The microstructure, phase composition and thermal conductivity of the as-prepared samples were systematically investigated. The results showed that the as-prepared SiOC CAs were composed of amorphous phase with three-dimensional network porous structure. In addition, the as-prepared SiOC CAs demonstrated high specific surface area of 635.72 m/g, low density of 0.19 g/cm, large pore volume of 0.49 cm/g, and ultra-low thermal conductivity of 0.031 ± 0.0015 W/(m K). The present developed work provided a new thought to produce other porous Si-based ceramic aerogel materials.

Polymer-derived ceramic SiOC ceramic aerogels Thermal conductivity Vacuum freeze-drying

SCI

英语

第一 ; 通讯

Chemistry ; Materials Science

Chemistry, Applied ; Chemistry, Physical ; Materials Science, Multidisciplinary

WOS:000886184700002

SPRINGER

MATERIALS SCIENCE

2-s2.0-85142236963

Scopus

Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology (SUSTech),Shenzhen,Guangdong,518055,China

Liu，Debao,Xue，Yahui. Preparation and structure of silicon oxycarbide aerogels fabricated by polymer derived ceramics method[J]. JOURNAL OF POROUS MATERIALS,2022,30(3).

Liu，Debao,&Xue，Yahui.(2022).Preparation and structure of silicon oxycarbide aerogels fabricated by polymer derived ceramics method.JOURNAL OF POROUS MATERIALS,30(3).

Liu，Debao,et al."Preparation and structure of silicon oxycarbide aerogels fabricated by polymer derived ceramics method".JOURNAL OF POROUS MATERIALS 30.3(2022).