Effect of substitution of quartz by rice husk ash and silica fume on the properties of whiteware compositions

Prasad, C S; Maiti, Kedar Nath; Venugopal, R.

doi:10.1016/s0272-8842(03)00035-x

Cited by 50 publications

(34 citation statements)

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“…Ceramics International, 39(2013) 2955-2966; doi: 10.1016/j.ceramint.2012.09.07240 4 years to valorise RHA. In particular, the use of this ash has been investigated as a secondary raw material in the manufacture of whiteware products [41], pigments [36,42], glazes [37,43] [47].…”

Section: Introductionmentioning

confidence: 99%

Crystallisation and microstructure of nepheline–forsterite glass-ceramics

Martı́n

Andreola

Barbieri

et al. 2013

Ceramics International

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This work presents the results of a study focused on the development of forsterite-nepheline glass-ceramic with the use of rice husk ash (RHA) as a silica source. The glass-ceramics were produced by a sintering process of a glassy frit formulated in the MgO-Al 2 O 3 -SiO 2 base system with the addition of B 2 O 3 and Na 2 O to facilitate the melting and pouring processes. The crystallisation study was carried out by depicting the TTT curve (Time-TemperatureTransformation). The mineralogical characterisation of the glass-ceramic materials was carried out using X-ray diffraction (XRD). The crystallisation activation energies were calculated by the Kissinger method. The results obtained show that devitrification of the RHA glass leads to a glass-ceramic material composed of nepheline (Na 2 O·Al 2 O 3 ·2SiO 2 ) and forsterite (2MgO·SiO 2 ).A study of the microstructure by scanning electron microscopy (SEM) allowed to establish the morphological evolution in both the shape and spatial arrangement of the nepheline and forsterite crystals on heating.

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Section: Introductionmentioning

confidence: 99%

Crystallisation and microstructure of nepheline–forsterite glass-ceramics

Martı́n

Andreola

Barbieri

et al. 2013

Ceramics International

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“…Por su composición, la CCA se utiliza como fuente de sílice en la industria siderúrgica [1] y como material puzolánico en la industria del cemento [2,3]. En el sector de los materiales cerámicos, en los últimos años se han realizado diferentes estudios de valorización de residuos industriales en pastas cerámicas [4][5][6] y en concreto, se ha investigado el uso de esta ceniza como materia prima secundaria en la fabricación de productos de loza [7], pigmentos [8], vidriados [9,10], ladrillería [11] En este trabajo se muestran los resultados de un estudio cuyo objetivo es la valorización de la ceniza de cáscara de arroz como materia prima en la obtención de materiales vitrocerámicos con propiedades adecuadas para ser utilizados como materiales de construcción. …”

Section: Introductionunclassified

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Materiales vitrocerámicos del sistema MgO-Al2O3-SiO2 a partir de ceniza de cáscara de arroz

Martı́n¹,

Rincón²,

Andreola³

et al. 2011

Bol. Soc. Esp. Ceram. Vidr.

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En este trabajo se muestran los resultados de un estudio de valorización de la ceniza de cáscara de arroz como materia prima en la obtención de materiales vitrocerámicos. Se ha formulado un vidrio en el sistema base MgO-Al 2 O 3 -SiO 2 incorporando B 2 O 3 y Na 2 O para facilitar los procesos de fusión y colado del vidrio. El vidrio se ha caracterizado mediante la determinación de su composición química. Su comportamiento frente a la sinterización se ha llevado a cabo mediante Microscopía de Calefacción (MC). La estabilidad térmica de las muestras y el mecanismo de cristalización preferente se ha estudiado mediante Análisis Térmico Diferencial (ATD). La mineralogía de los materiales vitrocerámicos se ha llevado a cabo por Difracción de rayos-X (DRX). Los resultados obtenidos muestran que es posible utilizar ceniza de cáscara de arroz para producir materiales vitrocerámicos mediante un proceso de sinterización seguido de cristalización, con nefelina (Na 2 O·Al 2 O 3 ·2SiO 2 ) como fase cristalina mayoritaria en el intervalo de temperatura 700º-950ºC y forsterita (2MgO·SiO 2 ) a temperaturas superiores a 950ºC. Palabras Clave: ceniza de cáscara de arroz, vidrio, vitrocerámico, nefelina, forsterita Glass-ceramic materials of system MgO-Al 2 O 3 -SiO 2 from rice husk ashThis wok shows the results of a valorisation study to use rice husk ash as raw material to develop glass-ceramic materials. An original glass has been formulated in the base system MgO-Al 2 O 3 -SiO 2 with addition of B 2 O 3 and Na 2 O to facilitate the melting and poring processes. Glass characterization was carried out by determining its chemical composition. Sintering behaviour has been examined by Hot Stage Microscopy (HSM). Thermal stability and crystallization mechanism have been studied by Differential Thermal Analysis (DTA). Mineralogy analyses of the glass-ceramic materials were carried out using X-ray Diffraction (XRD). Results show that it is possible to use ash rice husk to produce glass-ceramic materials by a sintercrystallization process, with nepheline (Na 2 O·Al 2 O 3 ·SiO 2 ) as major crystalline phase in the temperature interval 700-950ºC and forsterite (2MgO·SiO 2 ) at temperatures above 950ºC. Keywords: rice husk ask, glass, glass-ceramic, nepheline, forsterite INTRODUCCIÓNEl desarrollo económico y social experimentado por el ser humano a lo largo de su evolución ha estado asociado a su capacidad para explotar los recursos energéticos disponibles. El modelo energético actual, basado en la utilización a gran escala de combustibles fósiles (petróleo, carbón y gas), no es sostenible, ya que presenta graves problemas asociados al agotamiento de los recursos energéticos y al deterioro medioambiental provocado por la utilización de estos combustibles. Por tanto, es necesario encontrar fuentes de energía alternativas. En los últimos años se han desarrollado diversos procesos eficientes para convertir la biomasa en energía. Sin embargo, estos procesos no son completamente "limpios" ya que en el proceso de combustión de la materia orgánic...

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“…The incorporation of non-fluxing ashes into clayey ceramic materials has been widely investigated [122][123][124][125][126][127][128][129][130][131][132]. In particular, the fly ash coming from coal-fed thermal power plants is one of the most studied.…”

Section: Non-fluxing Ashesmentioning

confidence: 99%

Incorporation of solid wastes in red ceramics: an updated review

Vieira

Monteiro

2009

Matéria (Rio J.)

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A review on the fundamentals and technological advances in the incorporation of industrial solid wastes into red ceramics was updated since 1997, when the first overview on this subject was published by Dondi, Marsigli and Fabbri. Other works conducted before this period, but not covered by that overview were also reviewed. Modifications were introduced in the original categories of wastes to permit a wider variety to be considered. In addition to fuel and fluxing wastes, a category of property affecting wastes substituted the originally proposed fly-ash and plasticity reducing/ plastifying wastes categories. In order to be more comprehensive, this updated review considered industrially relevant subdivisions within each category. Accordingly, fuel wastes encompass: oily residues, blast furnace sludge, and paper industry residues. Fluxing wastes encompass: rejects from ornamental rocks, glassy residues and fluxing ashes. Property affecting wastes encompass: grog, water treatment sludge, steel-refining sludge/slag, non-fluxing ashes, mineral processing tails, galvanic sludge, spent catalyst reject, textile slurry, foundry reject sands, tannery sludge and construction and demolition leftovers.

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Effect of substitution of quartz by rice husk ash and silica fume on the properties of whiteware compositions

Cited by 50 publications

References 10 publications

Crystallisation and microstructure of nepheline–forsterite glass-ceramics

Crystallisation and microstructure of nepheline–forsterite glass-ceramics

Materiales vitrocerámicos del sistema MgO-Al<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub> a partir de ceniza de cáscara de arroz

Incorporation of solid wastes in red ceramics: an updated review

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