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作者：TSUYOSHI MATSUI;KEISUKE HIRAGUSHI;TADASHI IKEMOTO;

作者單位：Okayama Ceramics Research Foundation, 1406-18, Nishikatakami, Bizen-shi, Okayama-ken 705-0021

刊名：Journal of the Technical Association of Refractories

ISSN：0285-0028

出版年：2003-01-05

卷：23

期：1

起頁(yè)：11

止頁(yè)：14

分類號(hào)：TQ175

語(yǔ)種：英文

關(guān)鍵詞：corrosion;magnesia refractory brick;silicate slag;slag penetration;phase diagrams;direct dissolution;indirect dissolution;spinel;

內(nèi)容簡(jiǎn)介

The corrosion of magnesia refractory brick was evaluated by crucible corrosion test at 1550 deg C, using calcium aluminosilicate slag. The corrosion behavior of MgO grains during slag penetration was investigated by microstructural analysis of magnesia refractory brick after the corrosion test. The mechanism of corrosion of MgO grains was discussed in terms of the pertinent phase diagrams. It was concluded that MgO grains dissolved into slag indirectly and the spinel phase formed at the interface between magnesia refractory brick and the slag dissolved directly into the newly penetrating slag.