SELF SIMILARITY OF ALUMINOSILICATE AEROGELS

被引：21

作者：

CHAPUT, F

BOILOT, JP

DAUGER, A

DEVREUX, F

DEGEYER, A

机构：

[1] ECOLE NATL SUPER CERAM IND,F-87065 LIMOGES,FRANCE

[2] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1990年 / 116卷 / 2-3期

关键词：

D O I：

10.1016/0022-3093(90)90684-E

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

SANS data are presented concerning the structure of aluminosilicate aerogels prepared from the (BuO)2 AlOSi (OEt)3 complex precursor and heated at different temperatures. As in the silica system, aerogels clearly exhibit a mutually self similar fractal structure over a wide range of densities (40-160 kg/m3). The structure consists of primary homogeneous rough units (size of 13 Å) attached into volume fractal clusters (D = 2.1). When heated at 800°C, the size of the fractal domain and the roughness of the unit particles decrease. © 1990.

引用

页码：133 / 139

页数：7

共 18 条

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