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微波烧结对低温和加热速度下纯石六二酸盐的密度,微结构和磁性质的影响

Wail M Matran¹, Mazli Mustapha¹, Mohd Faizairi Nor¹

¹Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Malaysia.

|October 25, 2024

概括

微波烧结优化了六二氧化的性能. 这项研究揭示了低加热率如何提高密度和磁性特征,为永久磁铁提供一种没有稀土的替代品.

科学领域:

材料科学材料科学材料科学
固态物理固态物理
磁力学磁力学是一种

背景情况:

由于成本和环境问题,对永久磁铁的需求不断增长,需要替代稀土元素.
M型六,如六,是有前途的稀土无磁性材料.
优化它们的结构和磁性质对于实际应用至关重要.

研究的目的:

为了研究低加热率微波烧结对六二烯酸盐特性的影响.
在各种烧结温度下分析密度,微观结构和磁性表现的变化.
为了确定烧结参数和材料特性之间的关系.

主要方法:

在950°C,1000°C,1050°C和1100°C的温度下微波烧结六,每分钟10°C的加热速度.
描述技术包括散密度测量,场辐射扫描电子显微镜 (FESEM),X射线衍射 (XRD) 和振动样本磁力测量 (VSM).

主要成果:

密度呈指数级增长,在1050°C时达到91.4%的峰值.
通过XRD检测,证实了磁石结构 (P63/mmc) 在1050°C时具有最佳结晶;α-Fe2O3在1100°C时出现.
余磁化 (Mr) 和和磁化 (Ms) 在1000°C达到峰值,而强制性 (Hc) 和最大能量密度 (BH max) 在1050°C是最佳的.

结论:

低加热率微波烧结在量身定制六二烯酸铁的性能方面是有效的.
烧结温度极大地影响密度,微观结构和磁性性能.
在1050°C的优化性能突出显示了微波烧结的六二酸盐作为一种没有稀土的磁性材料的潜力.

关键词:

铁磁性铁磁性是一种铁磁性.加热速度的加热速度磁性材料是一种磁性材料.微波烧结方式微波烧结方式斯特龙六二烯酸铁.

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