Fabrication of Composite Material Using Alumina Agglomerated Sludge and Aluminum Powder by Spark Plasma Sintering

Fukumoto, Isao; Mekaru, Shunei; Shibata, Shinichi; Nakayama, Kiyomitsu

doi:10.1299/jsmea.49.91

Cited by 17 publications

(4 citation statements)

References 2 publications

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“…Thus, we inferred that the SPS sintered compact's HV was lower than that of the fly ash SPS compacts. Compared to the HV of other materials, general steel and aluminium (Al) alloy powders sintered by SPS have approximately 200-300 [33] and 84 [51], respectively. Therefore, the HV of the SPS sintered compact is superior to that of other structural materials.…”

Section: Resultsmentioning

confidence: 99%

Ceramics based on concrete wastes prepared by spark plasma sintering

Abass

Kanda

2021

PAC

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An effective utilization technique is required to recycle fine aggregate in concrete waste because the presence of residual waste cement reduces the quality of the recycled concrete. In this study, recycled aggregate powder (RAP) was prepared by milling Okinawan concrete waste and developing a ceramic compact with high flexural strength using the spark plasma sintering (SPS) method. The RAP raw material consisted mainly of calcite and quartz. The densification gradient of the sintered compact was uniform during sintering at 1123-1273K. At 1273K sintering temperature, Vickers hardness (HV) obtained a maximum of 393 along with 78.9MPa maximum flexural strength, which exceeded the porcelain stoneware tile ISO 13006 standards. Scanning electron microscopy with energy dispersive X-ray (SEM-EDX) element analysis suggested that the inner structure constituted unmelted silica-rich sand particles and melted calcium-rich particles containing waste cement and fine aggregate with limestone. Therefore, it can be concluded that SPS progressed by the liquid-phase sintering phenomenon between sand particles and calcium-rich particles, which contributed to flexural strength and modulus improvement.

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Section: Resultsmentioning

confidence: 99%

Ceramics based on concrete wastes prepared by spark plasma sintering

Abass

Kanda

2021

PAC

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“…In a 2016 study by Fukumoto [82], it was examined how adding heat-treated sludgederived alumina using the spark-induced plasma sintering process affected the mechanical characteristics of Al matrix composites. The reinforcing content, pressure applied, and heating temperature were found to have an impact on the composites' bending strength.…”

Section: Industrial Sludgementioning

confidence: 99%

Applicability of Industrial Wastes in Metal Matrix Composites Production – A Review

Adediran,

Ikubanni,

Mosadomi

et al. 2023

E3S Web Conf.

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The review study is to investigate the possibility of utilizing industrial waste materials as a strengthening component in the manufacturing of metal-matrix composites (MMCs) and assess the associated environmental benefits. The study focused on examining two distinct sets of waste materials: metal matrix composites that were reinforced with fly ash, and composites produced from different kinds of industrial waste materials. Technical and property-related data were reviewed to evaluate the potential of these waste materials in MMC production. The study results indicated that fly ash-reinforced metal-matrix composites exhibited exceptional physical and mechanical properties, which make them well-suited for various applications, particularly in the automotive sector. The research highlights the necessity for further studies to innovate advanced materials with improved properties while mitigating environmental pollution. Overall, the research demonstrates the potential of utilizing industrial waste materials as reinforcement in MMC production and underscores the importance of this approach for the future development of advanced materials.

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“…Aluminum sludge is a precipitation, yielded during the acid/alkali neutralizing process of waste fluid derived from the surface treatment of aluminum sash. The aluminum sludge is transferred into an α-alumina structure (α-alumina sludge) by heat treatment (9)- (11) . The α-alumina sludge has very fine powders.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Composite Materials Using Coal Ash and Aluminum Sludge by Spark Plasma Sintering

Nakamura¹,

Fukumoto

Kanda

2011

JMMP

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Coal ash and aluminum sludge are industrial wastes discharged in large amounts by electric power plants and aluminum sash factories. In this study, aluminum sludge was heat treated at a temperature of 1573K for 2 hours to change the α-alumina crystal structure. The silica (SiO 2) contained in coal ash and the alumina (Al 2 O 3) contained in aluminum sludge were combined to synthesize mullite by using a spark plasma sintering apparatus. While varying the composition ratio of the fly ash and α-alumina sludge, the mechanical properties were investigated. As a result, the bending strength of the composite material (composition weight ratio of coal ash and α-alumina sludge 2:3) showed an extremely high value of 270MPa at a sintering temperature of 1573K and holding pressure of 40MPa. Using X-ray analysis, the existence of mullite crystal structures in this material was confirmed.

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Fabrication of Composite Material Using Alumina Agglomerated Sludge and Aluminum Powder by Spark Plasma Sintering

Cited by 17 publications

References 2 publications

Ceramics based on concrete wastes prepared by spark plasma sintering

Ceramics based on concrete wastes prepared by spark plasma sintering

Applicability of Industrial Wastes in Metal Matrix Composites Production – A Review

Fabrication of Composite Materials Using Coal Ash and Aluminum Sludge by Spark Plasma Sintering

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