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<p>In the conventional approach, copper or nickel requires nitrogen-rich sintering to prevent oxidation, whereas silver electrodes are used for air sintering. Utilizing copper and aluminum, our study sought to lower expenses and oxidation. The ratios of 80:20, 70:30, and 60:40 aluminum to copper were evaluated. Five heating steps were included in the co-firing process at 885&#xa0;°C. The alloy formed at 650&#xa0;°C, and then it was gradually cooled and annealed for density. The compositions with the highest shrinkage were 30% aluminum (6&#xa0;μm) and 70% copper (0.88&#xa0;μm), respectively, exhibited 29% in the electrode and 24% in the ceramic. The electrode’s alloy connectivity determined its electrical characteristics. Performance may be improved by smaller particle sizes, indicating that our technique raises component quality. </p>

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Air-sintered copper–aluminum alloy inner electrodes

  • 期刊论文

  • 发表日期：

    2025年5月20日

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  • Wen-Hsi Lee,
  • Narendra Gharini Puteri,
  • S. S. Chen,
  • Zihao Lin

摘要

In the conventional approach, copper or nickel requires nitrogen-rich sintering to prevent oxidation, whereas silver electrodes are used for air sintering. Utilizing copper and aluminum, our study sought to lower expenses and oxidation. The ratios of 80:20, 70:30, and 60:40 aluminum to copper were evaluated. Five heating steps were included in the co-firing process at 885 °C. The alloy formed at 650 °C, and then it was gradually cooled and annealed for density. The compositions with the highest shrinkage were 30% aluminum (6 μm) and 70% copper (0.88 μm), respectively, exhibited 29% in the electrode and 24% in the ceramic. The electrode’s alloy connectivity determined its electrical characteristics. Performance may be improved by smaller particle sizes, indicating that our technique raises component quality.