Preparation and blast furnace slag corrosion behavior of SiC–Sialon–ZrN free-fired refractories

Huang, Juntong; Huang, Zhaohui; Liu, Yangai; Fang, Minghao; Liu, Haitao; Cao, Xiaowei; Li, Xiaochao; Yin, Mengyan; Wen, Ruilong; Tang, Hao

doi:10.1016/j.ceramint.2014.02.063

Cited by 12 publications

(9 citation statements)

References 8 publications

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“…The influence of ZrN content on the slag‐resistance of ZrN‐SiAlON‐SiC‐C refractory was also discussed in a published research of our group . Furthermore, the slag‐resistance can be various due to the different kinds of atmosphere by influencing the reactions and the transformation of phases.…”

Section: Introductionmentioning

confidence: 89%

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Research on slag‐resistance of ZrN‐SiAlON‐SiC‐C composite refractory in different atmospheres

Cheng

Zhang

et al. 2018

Int J Applied Ceramic Tech

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The ZrN‐SiAlON composite powder was synthesized using low‐grade zircon and bauxite by carbothermal reduction nitridation at first and then ZrN‐SiAlON‐SiC‐C composite refractory were fabricated with the ZrN‐SiAlON powder, SiC particles, and a small amount of Si powder as raw materials and sucrose as the binder. The slag resistance of these composites in O2, N2 and Ar atmosphere was investigated by X‐ray diffraction, scanning electron microscopy, and energy dispersion spectra. The results show that the pores in the inside of ZrN‐SiAlON‐SiC‐C composite refractory were enlarged in oxygen atmosphere due to oxidation, which leads to the decrease in slag resistance. In argon atmosphere, blast furnace slag destroyed the sintered body of zircon, corundum, and cristobalite with the formation of CaZrO3, then infiltrated into and filled the pores inside the refractory to form a dense layer, which hindered the further erosion of the blast furnace slag. In the reducing atmosphere, the interfacial energy of the gas‐liquid phases became larger due to the reactions between blast furnace slag liquid and the gas, resulting in a larger wetting angle which prevented the erosion.

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Section: Introductionmentioning

confidence: 89%

“…After loaded 120 g powder in a mold with a pressure of 40 MPa for 1 minute, the mixture was pressed into the crucible with the size of Φ50 × Φ20 mm, shown in Figure . Then the crucible was heated to a temperature of 1500°C and hold for 3 hours …”

Section: Methodsmentioning

confidence: 99%

Research on slag‐resistance of ZrN‐SiAlON‐SiC‐C composite refractory in different atmospheres

Cheng

Zhang

et al. 2018

Int J Applied Ceramic Tech

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“…Zircon (ZrSiO 4 ) consists of ZrO 2 and SiO 2 . So far, coal ash and ZrSiO 4 have been chosen as the raw materials to synthesize ceramics such as β-Sialon, 16 β-SiC/Al 2 O 3, 17 β-SiC/AlN, 18 mullite, 19 β-SiC/ZrO 2 , 20 β-SiC/ZB 2 , 21 and ZrN/ Sialon/SiC, 22 etc. In order to prepare dense β-Sialon-based ceramics, sintering aids such as Y…”

Section: Introductionmentioning

confidence: 99%

Recycling of coal ash for production of dense β‐Sialon/ZrN/ZrON‐based ceramics without sintering aids via pressureless sintering

Zhi

et al. 2019

Int J Applied Ceramic Tech

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“…In addition, due to the strong covalent ZrN bonding, high melting temperature (2952 ℃), low creep rate, high hardness (22.7±1.7 GPa), fine chemical stability, thermal shock resistance, and erosion resistance, ZrN has potential applications in wear-resistance coatings, high temperature refractories, gas turbine combustion chamber, aerospace industry fields, etc. [2][3][4][5][6]. Correspondingly, increasing interest works have been conducted recently focused on assessing thermo-physical properties of ZrN and mixed phases of actinide nitrides dispersed in ZrN [7][8][9][10].…”

Section: Introduction mentioning

confidence: 99%

High-temperature phase relations of ZrN–ZrO2–Y2O3 ternary system

Yuan

Shen

et al. 2018

J Adv Ceram

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Zirconium nitride (ZrN) ceramics were prepared via hot pressed sintering (HP) at 1750 ℃ in N 2 atmosphere with ZrO 2-Y 2 O 3 as sintering additive. X-ray diffraction was applied to analyze the phase composition of the as-prepared ceramics to study the high temperature phase relation in ZrN-ZrO 2-Y 2 O 3 ternary system and establish ZrN-ZrO 2-Y 2 O 3 ternary phase diagrams. The results show that ZrN and tetragonal ZrO 2 (t-ZrO 2) solid solution, face-centered cubic ZrO 2 (c-ZrO 2) solid solution, body-centered cubic Y 2 O 3 (c-Y 2 O 3) solid solution coexist in the system of ZrN-ZrO 2-Y 2 O 3 .

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Preparation and blast furnace slag corrosion behavior of SiC–Sialon–ZrN free-fired refractories

Cited by 12 publications

References 8 publications

Research on slag‐resistance of ZrN‐SiAlON‐SiC‐C composite refractory in different atmospheres

Research on slag‐resistance of ZrN‐SiAlON‐SiC‐C composite refractory in different atmospheres

Recycling of coal ash for production of dense β‐Sialon/ZrN/ZrON‐based ceramics without sintering aids via pressureless sintering

High-temperature phase relations of ZrN–ZrO2–Y2O3 ternary system

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