差分扫描热量计的适应用于同时进行电磁测量
John W Wilson1, Mohsen A Jolfaei2, Adam D Fletcher1
1Department of Electrical and Electronic Engineering, University of Manchester, Manchester M13 9PL, UK.
Sensors (Basel, Switzerland)
|September 28, 2024
概括
这项研究将电磁 (EM) 传感与差分扫描热度计 (DSC) 整合在一起,以加强对金微观结构变化的分析. 综合方法提供了对金属热现象的更全面的了解.
科学领域:
- 材料科学 材料科学 材料科学
- 金工业是金工业的一个方面.
- 物理化学 物理化学
背景情况:
- 差分扫描热量计 (DSC) 用于研究金属的热诱导的微观结构变化.
- 然而,复杂的转换,如再结晶和化,由于有竞争的信号,很难仅仅用DSC来表征.
- 磁性和电磁 (EM) 反应与这些具有挑战性的微观结构变化有关.
研究的目的:
- 通过将DSC与EM测量相结合,开发一种用于表征金属微结构变化的新方法.
- 改进复杂的金现象的分析,这些现象仅通过DSC无法完全解决.
- 为了更全面地了解金属材料中热诱导的变化.
主要方法:
- 一个差分扫描热量计 (DSC) 被修改为包含一个带有发射器和接收器线圈的电磁 (EM) 传感器.
- 开发了一种具有图形用户界面的定制数据采集系统,用于控制EM传感器并选择激发频率 (1-100 kHz).
- 在高达600°C的样本上同时进行DSC-EM测量.
主要成果:
- 集成的DSC-EM装置通过明确的电磁反应成功检测了中的可逆铁磁转变为磁性转变.
- 综合测量提供了补充数据,有助于复杂信号的解卷.
- 该系统展示了分析热诱导的微观结构变化的潜力.
结论:
- 同时的DSC-EM技术为金分析提供了一个强大的新工具.
- 这种方法可以加强对金属,包括合金钢的微观结构变化的研究.
- 这些发现支持材料科学,钢铁生产和磁/导电材料开发的进展.
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