Preparation and slag erosion resistance mechanism of MgAlON based composite refractories synthesized from solid waste

Composition‐dependent thermal and thermomechanical properties of spinel‐type MgAlON from density functional calculation

“…As MgAlON ceramics are important refractories, 6,7 the investigation of thermal shock resistance at low heat transfer rates is essential. When analyzing the thermal shock resistance at low rates of heat transfer, the thermal conductivity of materials should be taken into account.…”

“…Magnesium aluminum oxynitrides (MgAlON) are new type solid solutions with spinel structure, 1,2 which can be widely used for commercial, civil, and military uses, due to their superior performance. [3][4][5][6][7][8][9][10] Among them, thermal properties are crucial for applications such as refractories, 6,7 windows/domes, 4,5 solid-state lighting, 8 saturable absorbers, 9 and fluorescence thermometry. 10 For example, the thermal expansion coefficient of refractories is necessary for structural design.…”

The phase evolution of resin‐bonded Al2O3‐Al refractory containing magnesia under N2‐blowing

“…The development of aluminum oxynitride solid solution (AlON) and magnesium AlON (MgAlON) materials began with the demand for transparent military materials and high‐temperature glass 1–3 . The excellent high‐temperature mechanical properties and slag erosion resistance of these materials have led to their application as nonoxide refractory materials, it has low wettability to glass melts and molten Fe, and is a promising alternative to C‐containing refractory materials for use in new steel smelting furnace linings 4,5 . AlON is a solid solution in an Al 2 O 3 ‐AlN pseudobinary system.…”

“…[1][2][3] The excellent high-temperature mechanical properties and slag erosion resistance of these materials have led to their application as nonoxide refractory materials, it has low wettability to glass melts and molten Fe, and is a promising alternative to C-containing refractory materials for use in new steel smelting furnace linings. 4,5 AlON is a solid solution in an Al 2 O 3 -AlN pseudobinary system. According to the change in the Al, O and N ratios, the AlON structure can be divided into wurtzite, spinel and monoclinic.…”

In-situ pressureless sintering MgAlON-MgO ceramic from spent MgO-C brick towards friction material and refractory applications

“…The MgAlON-MgO composite material prepared from spent MgO-C brick in this work has higher exural strength and lower production cost than that of MgAlON-MgO composite material from pure raw materials, which may be that the impurities from spent MgO-C brick generate low melting phase at high temperature improves the interfacial binding force between MgAlON and MgO phases. Chen et al[24] obtained MgAlON-Al 2 O 3 composite material with exural strength of 7.7MPa from Al 2 O 3 powder, spent MgO-C and Al 2 O 3 -MgO-C bricks at 1550℃ for 6h, while the addition amount of spent bricks was 54%. The exural strength of MgAlON-MgO in this work also is better than that of MgAlON-Al 2 O 3 under the same utilization rate of spent bricks.In conclusion, the in-situ synthesized MgAlON-MgO composite material with 52.9% spent MgO-C brick addition is expected to be used as refractory material for high temperature industries such as steel, cement, and glass production due to its excellent exural strength and low production cost.…”