Contribution to the understanding of the high temperature behavior and of the compressive creep behavior of silica refractory materials

Pilate, P.; Lardot, Véronique; Cambier, F.; Brochen, Erwan

doi:10.1016/j.jeurceramsoc.2014.09.019

Cited by 27 publications

(17 citation statements)

References 12 publications

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“…Particularly, the temperature T 0.5 is the temperature corresponding to the onset of softening and at T 2 , there is a noticeable strain. For all materials T 0.5 is above 1350°C, as it is stated in the literature since T 0.5 is considered as a reference temperature [18,19]. According to P. Pilate, the refractoriness of materials depends on the chemical composition of the samples [19].…”

Section: Discussionmentioning

confidence: 99%

“…For all materials T 0.5 is above 1350°C, as it is stated in the literature since T 0.5 is considered as a reference temperature [18,19]. According to P. Pilate, the refractoriness of materials depends on the chemical composition of the samples [19]. However, the alumina content is just only one of the refractoriness key factors since it decreases strongly with the content of some elements as Na 2 O, K 2 O, MgO, TiO 2 , Fe 2 O 3 .…”

Section: Discussionmentioning

confidence: 99%

“…Interactions between phases promotes a progressive and continuous recrystallization process of mullite and cristobalite (Figure 8). Quantities of phases depend strongly on starting composition, temperature, and thermal history [19].…”

Section: Discussionmentioning

confidence: 99%

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Formulation of Clay Refractory Bricks: Influence of the Nature of Chamotte and the Alumina Content in the Clay

Sawadogo¹,

Seynou²,

Zerbo³

et al. 2020

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Refractory materials from kaolinitic clays and clay chamotte or quartz were studied to increase the refractoriness under load at temperature above 1300°C. Two different clays mined in Burkina Faso were used and chamotte grains were obtained by preliminary firing a local clay. Fired materials at 1350-1400°C present a typical granular composite microstructure where large grains of chamotte or quartz are embedded in the clay matrix phase. Under load at high temperature, the behavior of material is influenced by the nature of the clay matrix phase that progressively melt at high temperature, the type of chamotte or quartz grains, the grain sizes of different phases and the sequence of the thermal transformations during firing. Kinetics of creep under a constant load were characterized against temperature and time. It gives the typical temperatures at fixed creep strains, that's a well-recognized method for the refractoriness quantification. It's shown that the kinetic of creep change with the variation of viscosity with temperature of the melted clay matrix phase, that's related to both the chemical composition and the extend of the micro-composite nature of the heat transformed clays. Results also indicated that values of activation energy for creep are correlated to the refractoriness of materials.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Formulation of Clay Refractory Bricks: Influence of the Nature of Chamotte and the Alumina Content in the Clay

Sawadogo¹,

Seynou²,

Zerbo³

et al. 2020

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show abstract

“…At the steady stage, the creep speed remains nearly unchanged over time. At the accelerating stage, the creep speed increases rapidly over time till the material breaks 8,9 . The chemical and mineralogical compositions and microstructure of refractory materials are found as vital factors of their high‐temperature creep performance.…”

Section: Introductionmentioning

confidence: 99%

“…At the accelerating stage, the creep speed increases rapidly over time till the material breaks. 8,9 The chemical and mineralogical compositions and microstructure of refractory materials are found as vital factors of their high-temperature creep performance. The chemical and mineralogical compositions significantly impact the amount and properties of the liquid phase formed in the material at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Research on high‐temperature creep properties of Al₂O₃‐MgAl₂O₄ refractory

Zhang

2022

Int J Applied Ceramic Tech

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In this study, the Al2O3‐MgAl2O4 refractory samples were prepared with tabular alumina and fused magnesia‐alumina spinel as the raw materials. A creep resistance test was performed at 1400°C and studied. The tested samples after the creep resistance test were characterized and analyzed by X‐ray diffraction, scanning electron microscopy, and energy‐dispersive X‐ray spectroscopy to investigate the effect of adding the amount and particle size of MgAl2O4 on high‐temperature creep resistance of Al2O3‐MgAl2O4 refractory, as well as its mechanism. As indicated by the results, under the same amount of spinel added, the sample with 3‐1 mm spinel had higher creep resistance than the sample with 1‐0 mm spinel. In the creep test, spinel aggregates would react with the alumina matrix to form a secondary spinel layer around the spinel particles, thereby connecting the matrix and the aggregates and improving the creep resistance of the specimens. As clearly indicated by the observed result of the microstructure, in the formation of the secondary spinel layer, Mg2+ had a higher migration rate and showed the secondary spinel layer's higher thickness ratio on both sides of the reaction interface, which would induce the Kirkendall effect. Accordingly, considerable pores generated and accumulating at the interface tended to reduce the creep resistance of the material, and this effect was highly dependent on the size of the spinel and the activation solid solution reaction intensity.

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Recovery of value added products from rice husk ash to explore an economic way for recycle and reuse of agricultural waste

Kumar

Sengupta

Dasgupta

et al. 2015

Rev Environ Sci Biotechnol

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Contribution to the understanding of the high temperature behavior and of the compressive creep behavior of silica refractory materials

Cited by 27 publications

References 12 publications

Formulation of Clay Refractory Bricks: Influence of the Nature of Chamotte and the Alumina Content in the Clay

Formulation of Clay Refractory Bricks: Influence of the Nature of Chamotte and the Alumina Content in the Clay

Research on high‐temperature creep properties of Al₂O₃‐MgAl₂O₄ refractory

Recovery of value added products from rice husk ash to explore an economic way for recycle and reuse of agricultural waste

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Contribution to the understanding of the high temperature behavior and of the compressive creep behavior of silica refractory materials

Cited by 27 publications

References 12 publications

Formulation of Clay Refractory Bricks: Influence of the Nature of Chamotte and the Alumina Content in the Clay

Formulation of Clay Refractory Bricks: Influence of the Nature of Chamotte and the Alumina Content in the Clay

Research on high‐temperature creep properties of Al2O3‐MgAl2O4 refractory

Recovery of value added products from rice husk ash to explore an economic way for recycle and reuse of agricultural waste

Contact Info

Product

Resources

About

Research on high‐temperature creep properties of Al₂O₃‐MgAl₂O₄ refractory