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- Title
高碳铬铁渣制备镁橄榄石-尖晶石复相材料的 性能研究.
- Authors
冯泽成; 赵惠忠; 韩欢师; 李轶罛; 马九宏; 杨 阳
- Abstract
Forsterite-spinel composite materials were prepared using high-carbon ferrochrome slag as the starting material. Effects of the heat treatment temperatures ( 1 150, 1 200, and 1 250 °C) on properties of the prepared materials were researched. The results show that there are well developed forsterite and spine! in the high-carbon ferrochrome slag, which can act as the support skeleton for forsteri te - spin el composite materials. Heat treatment temperatures can significantly affect the contents of the phases in the composites, and the net-structured spine! crystal in the composite materials can improve the thermal shock resistance of the specimens. The spinel favors the solid- solution of the free chromium ions, their leaching concentration decreases as the heat treatment temperature increases . When the temperature is 1 200 °C, the composite materials have the best comprehensive performance, with the CCS of 108 . 8 MPa, the thermal shock resistance of 8 cycles, and the total chromium ion ( Cr 3 + and Cr6 + ) leaching mass concentration of o. 14 mg · L -1 .
- Publication
Refractories / Naihuo Cailiao, 2021, Vol 55, Issue 6, p491
- ISSN
1001-1935
- Publication type
Article
- DOI
10.3969/j.issn.1001-1935.2021.06.007