Characterization of the Mechanical Behavior of Magnesia Spinel Refractories using Image Correlation

Belrhiti, Younès; Germaneau, Arnaud; Doumalin, Pascal; Dupré, Jean-Christophe; Pop, Octavian; Huger, Marc; Chotard, Thierry

doi:10.1002/9781118837009.ch7

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…All experiments were repeated at least five times with similar conditions. If F (in N) is the load provided at the time of the rupture, D (in mm) the diameter of the disk‐like sample and H (in mm) its height, the compressive strength through diametrical compressive test in MPa is determined using relation () 31–34 . The results presented in this paper are mean values of the five measurements.

σ = \frac{2 F}{π D H}

…”

Section: Methodsmentioning

confidence: 99%

Use of a kaolinitic‐illitic clay from Central African Republic and an organic waste for the production of porous ceramic materials

Deramne

Lecomte‐Nana

Peyratout

et al. 2020

Int J Ceramic Engine & Sci

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σ = \frac{2 F}{π D H}

…”

Section: Methodsmentioning

confidence: 99%

Use of a kaolinitic‐illitic clay from Central African Republic and an organic waste for the production of porous ceramic materials

Deramne

Lecomte‐Nana

Peyratout

et al. 2020

Int J Ceramic Engine & Sci

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“…It was performed using an Instron traction and compression press (Instron, France). If F(in N) is the load provided by the press at the time of the rupture, R (in mm) the radius of the test sample disk and H (in mm) its height, the compressive strength through diametrical compression (σ in MPa) is given by the Equation () 38‐40

σ = \frac{F}{S} = \frac{F}{π R H} = \frac{2 F}{π D H} with D = Diameter (italicmm)

…”

Section: Methodsmentioning

confidence: 99%

Effect of the plant waste onto the properties of use and the microstructure of phyllosilicates based ceramics

Deramne

Lecomte‐Nana

Peyratout

et al. 2020

Int J Applied Ceramic Tech

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The present study aimed at using plant waste (Musa Paradisiaca) for manufacturing clay-based ceramics in order to promote lower sintering temperature while preserving the properties of use. Two kaolinic-illitic clays (NZ1 and KO) from Central African Republic were used mixed with 1 to 10 mass% of the plant waste (MP). The clays and the waste exhibited accessory phases: quartz and iron oxides, and K 2 O respectively. MP was collected, dried and sieved (<100 μm) previously to its mixture with clays. According to the sintering behavior of KO and NZ1 derived from thermodilatometry, the densification was obtained after firing at 1200°C. Results showed that open porosity decreased from 35% to 17% with increasing temperature in the range 900 to 1200°C for KO and NZ1. This porosity remained in the range 30%-40% while increasing the MP content (firing at 1000°C for 1h.). The optimized MP content was 3 and 5 mass% for KO and NZ1 clay materials respectively. The compressive strength and thermal conductivities were improved compared to clay samples without MP fired at 1200°C. Moreover a significant decrease in the sintering temperature was achieved, leading to energy saving in line with sustainability issues. K E Y W O R D S clays, plant waste, properties of use, silicate ceramics, sintering | 2639 SEREWANE DERAMNE Et Al.

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“…This method is based on the registration of digital images recorded in the undeformed and deformed configurations to measure displacements. In the last years, it was used for characterizing refractory products (i.e., materials and structures) at the lab scale [3,4]. DIC has also been used in other domains to monitor crack initiation and propagation in thermal fatigue [5,6] or drying of concrete [7].…”

Section: Introductionmentioning

confidence: 99%

Digital Image Correlation as a Tool for Monitoring Crack Networks on the Surface of MgO-Based Refractory Castables

Saracura

Canto

Pandolfelli

et al. 2014

Advances in Science and Technology

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This paper deals with the characterization of crack networks on the surface of refractory castable slabs, which are induced by stresses arising during the curing and drying (CD) stages. Images of the surface of castable samples placed in a house-made climatic chamber were recorded during the CD stages with a digital camera and processed by Digital Image Correlation (DIC) tomeasure the displacement field. Post-processing of DIC results were performed to estimate the length, orientation and opening of cracks in networks. The methodology is detailed and first analyses of experimental results are shown.

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Characterization of the Mechanical Behavior of Magnesia Spinel Refractories using Image Correlation

Cited by 4 publications

References 7 publications

Use of a kaolinitic‐illitic clay from Central African Republic and an organic waste for the production of porous ceramic materials

Use of a kaolinitic‐illitic clay from Central African Republic and an organic waste for the production of porous ceramic materials

Effect of the plant waste onto the properties of use and the microstructure of phyllosilicates based ceramics

Digital Image Correlation as a Tool for Monitoring Crack Networks on the Surface of MgO-Based Refractory Castables

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