Experimental Research on Sintering Amorphous Based Material with Iron-Tailings

Abstract:

The homogeneous mixture of iron tailings powder and glass powder is as the experimental material to sinter the amorphous based material. The particle size of the glass powder is less than 0.15 millimeter, and the particle size of the iron tailings powder is from 0.07 millimeter to 2 millimeter. The weight percentages of glass powder are 10% and 15% and 22% and 25% in the experimental material, respectively. The heating rate is about 170°C•min-1 and the maximum sintering temperature is 1150°C.They are proved by the analysis results of thermo-gravimetric analysis and differential thermal analysis with the experimental material. And the sintering temperature and the heating rate of the sintering experiments were based on them. The facts that the sintered material is mostly made up of amorphous substance and contains a certain amount of crystals and it’s micromechanism is amorphous are proved out by the experiments of scanning electron microscope. The testing results of the sintered material are these that the maximum density is 2.6g.cm-1, the maximum compressive strength is 94MPa, the maximum tensile strength is 5MPa, the maximum bending strength is 28MPa, the hydroscopicity and the radioactivity is zero, and it can not be eroded by acids and alkalis. When the sintered material contains 22% glass powder, the mechanical properties of the sintered material sample is same as marble.

• Periodical: Advanced Materials Research (Volumes 535-537)
• Pages: 722-729
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.535-537.722
• Online since: June 2012
• Authors: Hong Chao Deng
• Keywords: Amorphous Based Material, Differential Thermal Analysis, Iron Tailings Powder, Microstructure, Thermo-Gravimetric Analysis

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