作者：Tsuyoshi Nakamura;Satoshi Tanaka;Nozomu Uchida;

作者单位：Nagaoka university of Technology

刊名：Journal of the Technical Association of Refractories

ISSN：0285-0028

出版年：2006-01-05

卷：26

期：3

起页：230

止页：0

分类号：TQ175

语种：英文

关键词：

内容简介

Extensive research has been done to enhance the performance of MgO-C refractories. However, the actual use conditions in steelmaking are too severe to reproduce in the laboratory; for example, the long time scale, the rapid temperature changes, the extremely high reducing atmosphere, etc. So the development of the needed refractories has depended on experience rather than a simulated scientific approach. The aim of this study is to quantitatively characterize the property changes in MgO-C refractories after long term service, using an image analysis technique. The change of new parameters, i.e., fractal-dimension and the coverage of MgO clinker; the area ratio of MgO clinker in the treated image were examined. Using these parameters, it was possible to quantify the change in shape and the loss of MgO clinker.