Scholarlink

<p>The advancement of effective and eco-friendly cooling technology is essential for tackling global energy sustainability and climate change issues. This work presents a thorough analysis of the magnetic phase transition and magnetocaloric effect in the as-cast and annealed LaFe<sub>11.2</sub>Si<sub>1.8</sub> ribbons made via melt spinning, revealing the significant influence of annealing on their magnetic and magnetocaloric characteristics. Annealing dramatically modifies the structure by a rapid peritectic reaction, enhancing the volume fraction of the 1:13 phase and reducing the secondary phase, α-Fe phase. This leads to significant improvements in the Curie transition temperature, working temperature, and relative cooling power. The Curie transition temperature rises from 244 to 254&#xa0;K, with the working temperature and relative cooling power enhancing by 236% and 592%, respectively. The findings emphasise the essential function of annealing in enhancing the magnetic characteristics of La(Fe,Si)<sub>13</sub> compounds and highlight their promise for sustainable and efficient magnetic refrigeration.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Optimising magnetocaloric properties of LaFe11.2Si1.8 ribbons via annealing: a pathway to high-performance magnetic refrigeration

  • 期刊论文

  • 发表日期：

    2025年12月17日

查看全文
  • Anjana Vinod,
  • Arvindha Babu Diraviam,
  • Manivel Raja Muthuvel,
  • Madhuri Wuppulluri

摘要

The advancement of effective and eco-friendly cooling technology is essential for tackling global energy sustainability and climate change issues. This work presents a thorough analysis of the magnetic phase transition and magnetocaloric effect in the as-cast and annealed LaFe11.2Si1.8 ribbons made via melt spinning, revealing the significant influence of annealing on their magnetic and magnetocaloric characteristics. Annealing dramatically modifies the structure by a rapid peritectic reaction, enhancing the volume fraction of the 1:13 phase and reducing the secondary phase, α-Fe phase. This leads to significant improvements in the Curie transition temperature, working temperature, and relative cooling power. The Curie transition temperature rises from 244 to 254 K, with the working temperature and relative cooling power enhancing by 236% and 592%, respectively. The findings emphasise the essential function of annealing in enhancing the magnetic characteristics of La(Fe,Si)13 compounds and highlight their promise for sustainable and efficient magnetic refrigeration.