Influence of the clay type on the pore structure of structural ceramics

Freyburg, S.; Schwarz, Alexander

doi:10.1016/j.jeurceramsoc.2006.04.158

Cited by 53 publications

(21 citation statements)

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“…Strong dependence of mechanical properties on the level of porosity has been frequently reported for ceramic materials . The tendencies observed in the properties of illite in this study, that is, linearly decreasing Young's modulus, monotonically decreasing Compressive strength, and non‐monotonous dependence of Strain to fracture are consistent with trends typically observed for other ceramic materials .…”

Section: Discussionsupporting

confidence: 90%

Mechanical properties of illite‐based ceramics with controlled porosity studied by modern in situ techniques

et al. 2019

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Deformation tests combined with modern in situ acoustic emission (AE) and digital image correlation (DIC) techniques were applied to monitor low strain rate compressive behavior of illite‐based ceramics with controlled porosity (P). A strong effect of porosity on the mechanical performance was observed: Young's modulus decreased linearly from 29.4 ± 1.1 GPa (P = 14 vol%) to 3.0 ± 0.5 GPa (P = 55 vol%) and compressive strength decreased from 307 ± 13.6 MPa (P = 14 vol%) to 27.7 ± 1.0 MPa (P = 55 vol%). The AE and DIC techniques revealed a transition from brittle fracture to gradual localized crushing with increasing porosity. The AE signals possessed high‐energy burst‐like characteristics typical of brittle fracture and (micro)cracking. The AE data showed continuous activity from the beginning of loading, suggesting that true elasticity does not occur in this material. The combination of mechanical tests with in situ techniques, therefore, proved to be particularly effective in providing additional information on the deformation dynamics in ceramics.

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Section: Discussionsupporting

confidence: 90%

Mechanical properties of illite‐based ceramics with controlled porosity studied by modern in situ techniques

et al. 2019

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“…The pore size distribution of porous ceramics with 15–20% sandblasting waste, twin peak of pore size distribution were shown. It is shown the maximum peak went back to pore sizes of about 2.5 μm, it is possibly due to increasing amount eutectic melts .…”

Section: Resultsmentioning

confidence: 99%

Characteristics of porous ceramics prepared from sandblasting waste and waste diatomite by co‐sintering process

Ho¹,

Lin

et al. 2018

Env Prog and Sustain Energy

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The purpose of this research is to recycle sandblasting waste from the surface treatment process of solar cell industry to replace waste diatomite (with a replacement ratio of 0–20%) to make water‐retention porous ceramics, and adopts the method of molding by semi‐dry pressing under a pressure of 5 MPa, as the heating temperature fluctuated between 1000, 1100, 1200, and 1270°C. With a heating rate of 5°C/min, the heating process continued for 120 minutes. The sintered samples were then examined to determine whether its mechanical properties were met the CNS 382 R2002 Brick Criteria in terms of compressive strength (>3 MPa); while FTIR, and MIP instruments were used to measure the changes in the sintered samples according to pore size and total pore volume. The results indicated that the waste diatomite and sandblasting waste consisted of quartz, and porosities of porous ceramics with sandblasting waste about higher than 58.5–64.7%, water absorption of about 72.2–92.2%, and compressive strength of about 2.4–7.3 MPa can be produced using a porous ceramics of raw materials. The porous ceramics samples with 0–20% sandblasting waste prepared at the heating temperature of above 1100°C meet the Standards for Japan Interlocking Block Pavement Engineering Association (compressive strength > 3 MPa, water absorption > 70%). Moreover, the thermal conductivity of cement paste was 0.57 W/m.K, which was significantly higher than 0.28–0.49 W/m.K of porous ceramics with sandblasting waste, the porous ceramics have good heat insulation effects. © 2018 American Institute of Chemical Engineers Environ Prog, 38: 321–328, 2019

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“…On the opposite, when unfavourable climatic conditions are coupled with the presence of a high volume of capillary pores, the material ability to absorb water is increased 11 and severe structural damages, varying from surface scaling to complete disintegration, may occur. Owing to these circumstances, the material characteristics, which in turn depend on the raw material formulations, 12 the shaping process and the firing cycle, [13][14][15] become a key factor in the evaluation of the deterioration risk connected with frost action. [16][17][18] Many papers in the field of civil engineering have analysed the factors affecting the durability of some construction materials (e.g.…”

Section: Introductionmentioning

confidence: 99%

Durability of clay roofing tiles: the influence of microstructural and compositional variables

Raimondo

Ceroni

Dondi

et al. 2009

Journal of the European Ceramic Society

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Influence of the clay type on the pore structure of structural ceramics

Cited by 53 publications

References 0 publications

Mechanical properties of illite‐based ceramics with controlled porosity studied by modern in situ techniques

Mechanical properties of illite‐based ceramics with controlled porosity studied by modern in situ techniques

Characteristics of porous ceramics prepared from sandblasting waste and waste diatomite by co‐sintering process

Durability of clay roofing tiles: the influence of microstructural and compositional variables

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