Uses of Dysprosium (Dy) in Everyday Life
From the Dysprosium page's study notes: Dysprosium (Dy) serves in alloys, infrastructure and the technologies of daily life. The full list, with Bangladesh examples, sits below.
Looking for Dysprosium's uses without wading through a whole chapter? Here is the direct answer first, then the tables and derivations examiners want to see. Every number on this page comes from the same engine that powers the interactive table. Need the whole picture instead — history, characteristics, uses, exam questions? The full Dysprosium page is one click away.
Dysprosium at work around you
Every use below comes straight from the full Dysprosium study page, where each point also carries the chemistry behind it and an exam-style question. Skim the list here; open the full page when revision time comes.
Uses of Dysprosium in the study notes
- Heat-proofing neodymium super-magnets: a few percent of dysprosium in the Nd-Fe-B alloy keeps the magnets of electric-vehicle motors and wind-turbine generators from demagnetising when they run hot.
- Terfenol-D — the terbium–dysprosium–iron magnetostrictive alloy at the heart of naval sonar transducers and vibration-free precision actuators.
- Neutron-hungry control rods: dysprosium titanate and dysprosium-oxide cermets tame chain reactions in nuclear reactors, including Russia’s VVER fleet.
- Dysprosium iodide inside metal-halide discharge lamps — the roaring “daylight” that film and studio crews light night scenes with.
Where you meet it
- Every hybrid or battery-electric car — a slowly growing sight on Dhaka’s roads — carries roughly a hundred grams of dysprosium hidden in its traction-motor magnets.
- A film crew lighting a night scene with “daylight” lamps, and a warship sweeping the sea with sonar, both lean on dysprosium without ever billing it.
Students also ask
Why is Dysprosium important in Bangladesh?
The full study page connects Dysprosium to Bangladeshi life — school labs, local industries, health and the NCTB syllabus. This quick-answer page is the fast summary; the element page is the full story.
Where will I meet Dysprosium in the NCTB exam?
Questions on Dysprosium's uses are a recurring pattern in Class 9–10 and HSC chemistry. The element page ends with six exam-style questions in both languages — practise those and this pattern stops costing marks.