Destruction of wet materials by drying

被引：20

作者：

Kowalski, SJ ^{[1
]}

Rajewska, K ^{[1
]}

Rybicki, A ^{[1
]}

机构：

[1] Poznan Univ Technol, Inst Chem Technol & Engn, PL-60965 Poznan, Poland

来源：

CHEMICAL ENGINEERING SCIENCE | 2000年 / 55卷 / 23期

关键词：

cohesion; drying-induced stresses; fracture; experimental identification; process control;

D O I：

10.1016/S0009-2509(00)00165-2

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Self-fracturing of fluid-saturated porous materials during drying processes is considered, and a physical model of this widespread phenomenon in drying problems is proposed. Main analysis deals with dispergate systems like ceramics, which after drying and calcinating become porous bodies with relatively high strength. The emphasis is placed on two problems: an increase of the cohesive force at the initial stage of drying and decohesion of a structure caused by drying-induced stresses. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：5755 / 5762

页数：8

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