TIME EVOLUTION OF THE STRUCTURE-FUNCTION AND DYNAMICAL SCALING IN POROUS SNO2 DRY GELS

被引：4

作者：

CRAIEVICH, AF

SANTILLI, CV

PULCINELLI, SH

机构：

[1] UNIV SAO PAULO,INST FIS,BR-05508 SAO PAULO,BRAZIL

[2] UNIV NACL ESTADUAL SAO PAULO,INST QUIM,BR-14800900 ARARAQUARA,SP,BRAZIL

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1995年 / 97卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(94)00402-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An in situ study of the structural evolution of a porous SnO2 dry gel, under isothermal conditions, was carried out by means of the SAXS technique. The time evolution of the structure function is in agreement with the predictions of computer simulations for advanced stages of phase separation in binary materials. Dynamical scaling properties of the structure function of the porous system were verified. This study suggests that the evolution of microporosity occurs by a pure coagulation mechanism.

引用

页码：78 / 81

页数：4

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