Sintering and microstructure of spinel–forsterite bodies

Mustafa, Emad; Khalil, N.M.; Gamal, A.A. El

doi:10.1016/s0272-8842(02)00025-1

Cited by 49 publications

(35 citation statements)

References 8 publications

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“…4f), a decrease in the particle size and AP may cause an increase in the value of CCS. These results are in a good agreement with those reported by Mustafa et al [4].…”

Section: Resultssupporting

confidence: 94%

“…The properties are improved through addition of magnesium aluminate spinel, alumina, mullite, and partially stabilized zirconia [4]. Magnesium aluminate spinel (MgAl 2 O 4 ) is one of the bestknown and widely used polycrystalline materials on account of its attractive properties such as high melting point, high mechanical strength at elevated temperatures, high chemical inertness, and good thermal shock resistance [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…These special properties make MgAl 2 O 4 a potential candidate as a refractory material [8,9]. Mustafa et al [4] investigated the effects of spinel phase on the mechanical properties of forsterite ceramic. They observed that the formation of spinel phase strongly improved cold crushing strength of forsterite bodies.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis and characterization of spinel–forsterite nanocomposites

Tavangarian

Emadi

2011

Ceramics International

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“…4f), a decrease in the particle size and AP may cause an increase in the value of CCS. These results are in a good agreement with those reported by Mustafa et al [4].…”

Section: Resultssupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and characterization of spinel–forsterite nanocomposites

Tavangarian

Emadi

2011

Ceramics International

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“…However, the sintering temperature of forsterite is approximately 1500ºC, which is too high and limits its use. Many efforts have been made to improve the workability of forsterite, including reduction of the firing temperature by the addition of alumina [16] or low melting point glasses [17]. Another possible way to produce forsterite materials at lower temperatures is through the glass-ceramic process.…”

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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“…Many efforts were made to improve the workability of forsterite, including the reduction of the firing temperature by alumina addition [28] or using low melting point glasses [29]. Another way to produce forsterite materials at lower temperatures could be through the glass-ceramic process.…”

Section: Introductionmentioning

confidence: 99%

Technological properties of glass-ceramic tiles obtained using rice husk ash as silica precursor

Andreola¹,

Martı́n²,

Ferrari³

et al. 2013

Ceramics International

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This paper reports the results of a study focused on the obtainment of glass-ceramic by using rice husk ash (RHA) as silica precursor. RHA is a by-product generated in biomass plants using rice husk as fuel for kilns or in the rice mills to generate steam for the parboiling process.Worldwide, it is annually produced about 132 Mt of rice husk, which gives rise to a production of 33 Mt/year of RHA. Glass-ceramic tiles were produced by a sinter-crystallization process using a glassy frit formulated in the MgO-Al 2 O 3 -SiO 2 composition system. The realized glassceramics were studied according to ISO rules for sintering and technological properties (water absorption, apparent density, bending strength, Young's modulus, deep abrasion, Mohs hardness). To complete the investigation crystalline phase formation and microstructural characterization of the glass-ceramic materials was carried out using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Finally, chemical durability tests on parent glass and derived glass-ceramics were performed. The results obtained showed that it is possible to use RHA to produce glass-ceramic tiles by a sinter-crystallization process, obtaining nepheline (Na 2 O*Al 2 O 3 *SiO 2 ) as main crystalline phase and forsterite (2MgO*SiO 2 ) at 900 °C. Regarding technological features, the sintered materials showed bending strength values and Mohs hardness higher with respect to commercial glass-ceramics like NeopariesR. Other properties as water absorption (0.5%) allowed to classify these materials into the Group BIa characteristic of high sintered ceramic tiles according to European Standard rule.

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Sintering and microstructure of spinel–forsterite bodies

Cited by 49 publications

References 8 publications

Synthesis and characterization of spinel–forsterite nanocomposites

Synthesis and characterization of spinel–forsterite nanocomposites

Crystallisation and microstructure of nepheline–forsterite glass-ceramics

Technological properties of glass-ceramic tiles obtained using rice husk ash as silica precursor

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