Properties of Light MMCs Modified with Cordierite Synthesized from Fly Ash

Długosz, P.; Rączka, Angelika; Kopeć, Adrian; Krzyżak, R.; Darłak, P.; Hebda, Marek

doi:10.1007/s11665-016-2089-1

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…It is a characteristic component of the microstructure of the AZ91 (MgAl9Zn1) alloy casting, and its morphology depends on both the alloy composition (including Al concentration) and the solidification rate. The lamellar morphology of the Mg 17 Al 12 phase precipitates with a clear growth anisotropy may be caused by the directional correlation of crystallographic orientations with the α phase [ 62 , 63 , 64 ].…”

Section: Resultsmentioning

confidence: 99%

The Influence of Conventional or KOBO Extrusion Process on the Properties of AZ91 (MgAl9Zn1) Alloy

et al. 2021

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Designers’ efforts to use the lightest possible materials with very good mechanical properties mean that in recent years magnesium alloys have been increasingly used. It is well-known that the use of various plastic working processes allows achieving even better strength properties of the material, often without significant loss of plastic properties in relation to the properties of products obtained in the casting process. The article presents the results of research on microstructural changes and mechanical properties of the alloy AZ91 (MgAl9Zn1) occurring in samples subjected to conventional plastic deformation and the KOBO method. The obtained results were compared to the properties of reference samples, i.e., cast samples. The article presents the advantage of using the low-temperature KOBO method compared to the high-temperature deformation in a conventional manner. Moreover, it has been shown that the use of KOBO extrusion allows the alloy AZ91 (MgAl9Zn1) to obtain superplasticity properties with an elongation of up to 577% compared to the cast reference sample, which is generally classified as difficult for plastic deformation.

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Section: Resultsmentioning

confidence: 99%

The Influence of Conventional or KOBO Extrusion Process on the Properties of AZ91 (MgAl9Zn1) Alloy

et al. 2021

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“…They have concluded that cordierite is started to form at 1200°C and the pure phase is obtained at 1300°C with a small amount of spinel. Dong et al (2006) [159], Liu et al (2015) [160] and Długosz et al (2016) [161] have also used FA to fabricate the cordierite ceramics. Zhu et al (2012) [162] have prepared cordierite by solid-state reactions with three different types of raw materials, i.e., waste kaolin mine tailing as the source of SiO 2 and Al 2 O 3 , waste serpentine mine tailing as the source of SiO 2 and MgO, and alumina powder.…”

Section: Cordieritementioning

confidence: 99%

Sustainable ceramics derived from solid wastes: a review

Hossain

Roy

2020

Journal of Asian Ceramic Societies

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Wastes from different manufacturing processes and energy generation unite are attributed to the ecological and health issues. Instead of land-filling, the waste can be recycled or reused to convert marketable value-added products with high ecologic and economic interest. Ceramics are attracting particularly in waste recycling perceptions. From this eco-friendly propensity, in the last two decades, an increasing number of studies have demonstrated the possibility to use alternative ingredients in the place of conventional raw materials (e.g., most common ternary clay-quartz-feldspar system) for the fabrication of ceramics. Researchers are trying to incorporate the wastes and industrial by-products like fly ash (FA), rice husk ash (RHA), blast furnace slag (BFS), sludge, glass waste, polished tile waste, eggshell and others for making different ceramics. The present review is aimed to provide an up-to-date overview of the recent wastederived ceramics including refractories, glasses, whitewares, oxide and non-oxide ceramics with the correlation of waste incorporation limits, manufacturing routes, and properties of the ceramics. The investigation reveals that ceramic industries have huge potential to utilize the wastes as substitution of the natural raw materials. The waste to value-added ceramics conversion not only solves the disposal problems but also conserves the natural resources.

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Corrosion Resistance of Cordierite-Modified Light MMCs

Szewczyk-Nykiel

Długosz

Darłak

et al. 2017

J. of Materi Eng and Perform

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Composites are one of the fastest developing materials. Research is particularly intensive in case of light metal alloys due to i.a. economic and environmental aspects. One of the innovative solutions is production of the metal matrix composites (MMC) by adding the cordierite ceramics obtained from fly ashes to magnesium alloys. In addition to obtaining new-generation materials with improved mechanical properties, also the waste is utilized which has a significant environmental and economic importance. In order to select the suitable operating conditions for such alloys, their corrosion resistance must be determined. This paper presents the results of corrosion resistance tests of AM60 magnesium alloy matrix composites reinforced with cordierite ceramics. The following issues were examined: (1) impact of the volume fraction of cordierite ceramics, 2 or 4 wt.%; (2) impact of surface roughness (two variants of surface treatment); and (3) impact of heat treatment on corrosion resistance of obtained composites. The results were compared with data recorded for the base AM60 alloy (which surface treatment was identical as of the composites). Moreover, the XRD and microanalysis of the chemical compositions by EDS method were applied to determine phases occurring in the investigated composites. Furthermore, the XRD was also performed in order to identify the corrosion products on the surface of the material. The test results indicate that the alloy reinforced with 2 wt.% addition of cordierite ceramics had the best corrosion resistance. It was also presented that surface and heat treatment affect the obtained results.

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Properties of Light MMCs Modified with Cordierite Synthesized from Fly Ash

Cited by 3 publications

References 13 publications

The Influence of Conventional or KOBO Extrusion Process on the Properties of AZ91 (MgAl9Zn1) Alloy

The Influence of Conventional or KOBO Extrusion Process on the Properties of AZ91 (MgAl9Zn1) Alloy

Sustainable ceramics derived from solid wastes: a review

Corrosion Resistance of Cordierite-Modified Light MMCs

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