China Spot Market – Rare Earth Magnet Materials Daily Quotation, Just for Reference!
▌Market Snapshot
Pr-Nd Alloy
- Current Range: 543,000 – 545,000
- Price Trend: Steady with narrow fluctuations
Dy-Fe Alloy
- Current Range: 1,630,000 – 1,640,000
- Price Trend: Firm demand supports upward momentum
Curie temperature and magnetic disappearance
Every magnetic material has a specific “Curie temperature” – the critical point where it completely loses its magnetism. This occurs because high temperatures intensify thermal motion of magnetic domains, disrupting their alignment. Key examples:
• Iron: 770°C
• Nickel: 358°C
• Cobalt: 1121°C
This property has vital industrial applications. Induction cooktops utilize this principle for temperature control, while some safety devices employ temperature-sensitive magnets as overheating protection mechanisms. Interestingly, this phenomenon was first identified by Pierre Curie in 1895, marking a breakthrough in understanding magnetic materials’ thermal behavior.
Post time: Mar-25-2025
