Marine Waste Management of Oyster Shell Waste as Reinforcement for Clay Additive Manufacturing Components

Yulius Shan Romario, Chinmai Bhat, Maziar Ramezani, Cho-Pei Jiang

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The devastating effects of recent global events such as climate change and population explosion has demanded the need of natural resources beyond its availability. Apart from these devastating effects, the recent COVID-19 pandemic has made the world envisage the need for direct digital manufacturing to prevent upcoming supply-chain disruptions. In this study, a novel waste management technique is proposed in which the discarded oyster shell wastes are used as reinforcement in the additive manufacturing of clay components. To promote the concept of self-reliance, the clay-based material extrusion 3D printer is self-developed and the process parameters are optimized. The design for additive manufacturing principles is assessed to evaluate the threshold performance of the developed 3D printer using the oyster shell-reinforced clay material. Apart from that, the precision of the 3D printer is also evaluated using the 3D models to assess the efficacy of the 3D printer. The 3D printer can precisely print the minimum features of 8 mm, minimum width of 3 mm, overhanging angles of 32˚, and bridging length of 8 mm without any support requirement. The mechanical performance of the printed samples, treated with different sintering temperatures are also examined. The samples deliver excellent compressive and flexural strength of 429.57 MPa and 13.57 MPa, respectively at 1150˚C sintering temperature. Compared to the pure clay samples, the oyster shell reinforcement enhances the compressive and flexural strength of the composite by 26.5% and 34%, respectively. The composites also display enhanced tribological properties at ambient and elevated temperatures.

Original languageEnglish
Pages (from-to)117-134
Number of pages18
JournalInternational Journal of Precision Engineering and Manufacturing - Green Technology
Volume12
Issue number1
DOIs
Publication statusPublished - Jan 2025
Externally publishedYes

Keywords

  • Additive manufacturing
  • Clay composites
  • Design for additive manufacturing
  • Material extrusion
  • Oyster shell waste
  • Waste management

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