Optimization Composition for glass ceramics prepared by picture method

• 1、State Key Laboratory of iron and steel metallurgy, University of Science and Technology Beijing ,Beijing 10083

Abstract：The preparation of glass ceramics by picture method is an effective way to effectively utilize the sensible heat of the slag. In this paper, with ferronickel slag and refining slag of electric furnace as main raw materials, glass-ceramics were prepared by a petrurgic methodwithout adding any modifier.The ratio of ferronickel slag and refining slag of electric furnace on the microstructure and properties of the product were analyzed by means of differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and mechanical properties test.The results showed that the glass ceramics with excellent properties can be prepared by cryOptimizaOptimization Composition for glass ceramics prepared by Petrurgic methodtion Composition for glass ceramics prepared by Petrurgic methodstallization at Crystallization temperature and annealing at 650 degrees for slag melts during its cooling process.The main crystalline phases of the sample are diopside and forsterite. With the increase of refining slag content, the proportion of diopside increases, the proportion of forsterite decreases, and the mechanical strength of the sample increases.When the content of ferronickel slag and refining slag is 60% and 40%, the prepared samples have compact structure and the best mechanical properties. The bending strength reaches 126 MPa and the compressive strength reaches 506 MPa.

Keywords： Inorganic chemical engineering Ferronickel slag Refining slag Glass-ceramic Diopside