The effect of FexO content on dissolution behavior of an alumina inclusion in CaO-Al2O3-SiO2-FexO slag by a single hot thermocouple technique

被引：11

作者：

Um, Hyungsic ^{[1
,2
]}

Yeo, Sangrok ^{[1
]}

Kang, Youn-Bae ^{[3
]}

Chung, Yongsug ^{[1
]}

机构：

[1] Tech Univ Korea, Dept Adv Mat Engn, 237 Sangidaehak Ro, Shiheung Si 15073, South Korea

[2] Dongkuk Steel Co, R&D Ctr, 70 Geonposaneop Ro 3214beon Gil, Pohang Si 37874, Gyeongsangbuk D, South Korea

[3] Pohang Univ Sci & Technol, Grad Inst Ferrous & Energy Mat Technol, 77 Cheongam Ro, Pohang Si 37673, Gyeongsangbuk D, South Korea

来源：

CERAMICS INTERNATIONAL | 2022年 / 48卷 / 23期

关键词：

Dissolution; Slag; Single hot thermocouple technique; CERAMIC SYSTEMS; SINTERED ALUMINA; MGO INCLUSIONS; AL2O3; OXIDE; CORROSION; SAPPHIRE; STEEL;

D O I：

10.1016/j.ceramint.2022.08.132

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 dissolution behavior between CaO-SiO2-Al2O3-FexO slag and Al2O3 particles was studied by the Single Hot Thermocouple technique (SHTT) at 1550 degrees C. The FexO content in the slag with a fixed basicity (CaO/SiO2 ratio) of 1 varied from 10 to 30%. The dissolution behavior between slag with transition metal oxides and Al2O3 particles was investigated through a new research method of the Single Hot Thermocouple Technique (SHTT), which is a fast quenching method. The conditions under which the SHTT is possible were derived as a stability diagram. The results of the experiment revealed that the dissolution rate of the Al2O3 particles increased with an increasing FexO content in the range of 0-20% FexO content of slag, but the dissolution rate of Al2O3 particles did not increase when the FexO content was 30%. It was found that the Ca(Al, Fe)12O19 phase was formed in the slag with 30% FexO content.

引用

页码：35301 / 35309

页数：9

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