Correlation between MgSiO3 phases and mechanical durability of steatite ceramics

Mielcarek, W.; Nowak-Woźny, Dorota; Prociów, K.

doi:10.1016/j.jeurceramsoc.2003.12.030

Cited by 67 publications

(43 citation statements)

References 15 publications

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“…Mineral rock wastes are widely studied due to the great environmental impact when discarded indiscriminately in the nature and also to their huge potential as ceramic raw materials 13 . The steatite mineral, commonly known as soapstone, is the name given to a metamorphic rock, basically composed of talc and many other minerals such as magnetite and silica [14][15] . Talc is a hydrated magnesium silicate, with the following chemical formulation: Mg 3 Si 4 O 10 (OH) 2 [16] .…”

Section: Introductionmentioning

confidence: 99%

Effect of steatite waste additions on the physical and mechanical properties of clay composites

et al. 2010

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Mineral rock wastes are being widely investigated due to possible damage to the environment when discarded indiscriminately in the nature, but also because of their great potential as ceramic raw materials. This work aims to study the effect of steatite particle additions on the mechanical properties of clay composites. A comprehensive series of experiments have been conducted to assess the influence of: steatite particle size, steatite fraction and compacting pressure on the performance of clay composites. The composite of superior properties was manufactured with 20 wt. (%) of steatite, 100-200 US-Tyler of steatite particle size and 30 MPa of compacting pressure.

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Section: Introductionmentioning

confidence: 99%

Effect of steatite waste additions on the physical and mechanical properties of clay composites

et al. 2010

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“…The mineral steatite, commonly known as soapstone, is a metamorphic rock composed mainly of talc (Mg 3 Si 4 O 10 (OH) 2 ) and many other minerals such as magnesite and silica 1,2 . Steatite has been widely employed in the carving of elements in facades of Brazilian historical buildings and baroque churches since the 17 th century.…”

Section: Introductionmentioning

confidence: 99%

Cement - steatite composites reinforced with carbon fibres: an alternative for restoration of brazilian historical buildings

et al. 2011

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Steatite is a mineral which has been employed in the carving of elements in facades of Brazilian historical buildings and churches since the 17 th century. Over the years, many of those historical buildings suffered the consequences of weathering with a current need for restoration. Recently a special cement-based mortar containing additions of fine powder waste from mineral extraction of steatite has been developed in Brazil, as a composite material for restoration of steatite elements. However, the incorporation of steatite waste reduces the flexural strength of the mortar and compromises the restoration of elements where gravity imposes tensile stresses. The addition of carbon fibres may overcome this issue and increase the flexural strength of the cement-steatite composite mortar. This work investigates the effect of carbon fibre addition on the bulk density and flexural strength of compacted precast cement-steatite composites. The results show that the addition of carbon fibres (i) effectively increases the mechanical strength, allowing for a higher amount of steatite powder waste in the mixes; (ii) reduces the weight of the structural elements. This new composite material would help to develop restoration techniques of historical buildings and serve as a disposal route of steatite powder waste in Brazil.

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“…It is one of the meta-silicates that form the main components of the MgO-Al 2 O 3 -SiO 2 system (Rohan et al, 2004). The three commonly observed polymorphs at ambient pressure are low-clinoenstatite, ortho-enstatite and protoenstatite (Sarver and Hummel, 1962;Bloor, 1964;Lee and Heuer, 1987;Mielcarek et al, 2004). For industrial use, SBC usually is in the form of the enstatite phase, whose density is 3.21 g/cc and melting point is 1557C (Chao, 1994).…”

Section: Introductionmentioning

confidence: 99%

Phase Analysis and Densification of Steatite-based Ceramics

Kelvin¹,

Ramesh²,

Tan³

et al. 2010

Int J Automot Mech Eng

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The effect of manganese oxide on the sintering of steatite-based ceramic was studied. Steatite powder used in this work was doped with varying amounts of manganese oxide-5% to 30% (wt). The green samples were cold-isostatically pressed and pressureless sintered at temperatures ranging from 950C to 1150C using varying holding times. X-ray diffraction analysis revealed no secondary phases detected in any samples regardless of dopant addition and sintering conditions. It was revealed that the bulk density of steatite ceramic increased with manganese oxide when sintering at 1050C. However, sintering at 1100C using 1 minute holding time was found to be the most effective in enhancing the bulk density as well as the Vickers hardness of manganese oxide-doped steatite ceramic.

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Correlation between MgSiO3 phases and mechanical durability of steatite ceramics

Cited by 67 publications

References 15 publications

Effect of steatite waste additions on the physical and mechanical properties of clay composites

Effect of steatite waste additions on the physical and mechanical properties of clay composites

Cement - steatite composites reinforced with carbon fibres: an alternative for restoration of brazilian historical buildings

Phase Analysis and Densification of Steatite-based Ceramics

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