Ultrasonic measurement of Young's modulus MgO/C refractories at high temperature

被引：38

作者：

Baudson, H

Debucquoy, F

Huger, M

Gault, C

Rigaud, M

机构：

[1] ENSCI, F-87065 Limoges, France

[2] CIREP, Montreal, PQ H2M 2N9, Canada

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 1999年 / 19卷 / 10期

关键词：

refractories; MgO; carbon; Young's modulus; microstructure : final;

D O I：

10.1016/S0955-2219(98)00268-4

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 paper deals with the elastic behavior of MgO/C refractories used in BOF at temperatures up to 1400 degrees C in aiv or inert atmosphere, Measurements have been made by the way of a high temperature ultrasonic technique. Heating-cooling cycles and long time aging in the range 700-1400 degrees C show strong variations of Young's modulus which have been interpreted with the aid of XRD analysis, SEM observations and EDS analysis. Carbon oxidation and sintering of MgO particles ave found to be responsible of the major parts of the measured evolutions. (C) 1999 Elsevier Science Limited. All rights reserved.

引用

页码：1895 / 1901

页数：7

共 12 条

[1] Derivation of the exponential relation for the effect of ellipsoidal porosity on elastic modulus [J].