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<p>This study examines the effect of solid phase content on Al<sub>2</sub>O<sub>3</sub>–Ti–Ni composites fabricated <i>via</i> centrifugal slip casting (CSC). Three series with 45, 50, and 55 pct solid phase by volume—each containing 4 pct metallic phase—were analyzed. Rheological tests confirmed shear thinning behavior, while microstructural and thermal analyses revealed notable spinel phase formation (NiAl<sub>2</sub>O<sub>4</sub> and TiAl<sub>2</sub>O<sub>5</sub>). Increasing solid content improved density and thermal stability but decreased cross-sectional widths. Life cycle assessment (LCA) showed a rising environmental impact with higher solid content, with global warming potentials of 0.15, 0.17, and 0.19&#xa0;kg CO<sub>2</sub> eq per sinter for Series I, II, and III, respectively. These findings aid in optimizing composite performance alongside sustainability for climate-conscious manufacturing.</p>

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The Influence of the Content of the Solid Phase on the Formation and Final Al2O3–Ti–Ni Composite, Including LCA Analysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月25日

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  • Justyna Zygmuntowicz,
  • Paulina Piotrkiewicz,
  • Marcin Wachowski,
  • Anna Więceław-Midor,
  • Radosław Żurowski,
  • Justyna Tomaszewska-Krygicz

摘要

This study examines the effect of solid phase content on Al2O3–Ti–Ni composites fabricated via centrifugal slip casting (CSC). Three series with 45, 50, and 55 pct solid phase by volume—each containing 4 pct metallic phase—were analyzed. Rheological tests confirmed shear thinning behavior, while microstructural and thermal analyses revealed notable spinel phase formation (NiAl2O4 and TiAl2O5). Increasing solid content improved density and thermal stability but decreased cross-sectional widths. Life cycle assessment (LCA) showed a rising environmental impact with higher solid content, with global warming potentials of 0.15, 0.17, and 0.19 kg CO2 eq per sinter for Series I, II, and III, respectively. These findings aid in optimizing composite performance alongside sustainability for climate-conscious manufacturing.