EFFECT OF ULTRASOUND ON THE FORMATION OF ZRO2 SOLS AND WET GELS

被引：19

作者：

CHAUMONT, D ^{[1
]}

CRAIEVICH, A ^{[1
]}

ZARZYCKI, J ^{[1
]}

机构：

[1] LAB NACL LUZ SINCROTRON,BR-13081 CAMPINAS,SP,BRAZIL

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1992年 / 147卷

关键词：

D O I：

10.1016/S0022-3093(05)80590-3

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：

The influence of ultrasonic irradiation (sonocatalysis) on the formation of ZrO2 sols and gels was studied by small-angle X-ray scattering (SAXS) using the LURE synchrotron facility. The starting solutions consisted of mixtures of Zr-tetrapropoxide and acetic acid. It was found that sonocatalysis increases the rate of formation of linear polymeric clusters in the starting solution but does not influence the growth process. The gelation time depends on both the irradiation time and ultrasonic power. The gyration radius, R(G), of particles obtained under ultrasound is smaller than that of classical gels without ultrasonic irradiation.

引用

页码：41 / 46

页数：6

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