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Sulfide Capacities of Solid Oxides in Calcium-Aluminate Systems

机译:钙 - 铝酸盐系统中固体氧化物的硫化物容量

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摘要

To clarify the mechanism of CaS formation on the oxide inclusion of the CaO-Al_2O_3 system, the sulfide capacities of solid oxides was measured in the present study. The results show that the sulfide capacity of (12CaO·7Al_2O_3; C_(12)A_7) was much larger than of other compounds, and increased with temperature. The value for C_(12)A_7 was larger than that measured for the liquid oxide of the same composition. Furthermore, the diffusion behavior of sulfur in solid steel to the inclusion of the CaO-Al_2O_3 system, was investigated using a diffusion couple. After heating at 1 473 K for 72 h, in the case of C_(12)A_7, the intensity of sulfur in the oxide was high, but the formation of CaS was not detected. This suggests that the formation of CaS was suppressed around the C_(12)A_7 particles by the diffusion of sulfur in the solid oxide.
机译:为了阐明CAS形成对CaO-Al_2O_3系统的氧化物的机理,在本研究中测量固体氧化物的硫化物能力。结果表明(12CaO·7AL_2O_3; C_(12)A_7)的硫化物容量大于其他化合物,并随温度的增加而增加。 C_(12)A_7的值大于相同组成的液体氧化物的值。此外,使用扩散耦合研究了固体钢中固体钢中的硫的扩散行为,以包含CaO-Al_2O_3系统。在加热后,在1 473K持续72小时后,在C_(12)A_7的情况下,氧化物中硫的强度高,但未检测到CAS的形成。这表明通过在固体氧化物中的硫的扩散来抑制CAS(12)A_7颗粒的形成。

著录项

  • 来源
    《ISIJ international》 |2020年第8期|1617-1623|共7页
  • 作者单位

    Graduate School of Engineering Tohoku University. Now at Materials Engineering Department Customer Performance and CAE/Test Engineering Division Nissan Motor Co. Ltd. 560-2 Okatsukoku Atsugi Kanagawa 243-0192 Japan;

    Institute of Multidisciplinary Research for Advanced Materials Tohoku University 2-1-1 Katahira Aoba-ku Sendai Miyagi 980-8577 Japan;

    Institute of Multidisciplinary Research for Advanced Materials Tohoku University 2-1-1 Katahira Aoba-ku Sendai Miyagi 980-8577 Japan;

    Institute of Multidisciplinary Research for Advanced Materials Tohoku University 2-1-1 Katahira Aoba-ku Sendai Miyagi 980-8577 Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    inclusion; CaS; Calcium-Aluminate; sulfide capacity; diffusion couple;

    机译:纳入;CAS;钙铝酸盐;硫化物容量;扩散夫妇;

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