dysprosium
/dis'prousiəm/
Definition
- Noun:
- A chemical element: Dysprosium is a metallic element with the symbol Dy and atomic number 66. It is part of the lanthanide series, often referred to as the rare earth elements.
- Properties: It is a soft, silvery metal that is relatively stable in air at room temperature. As a trivalent element, it typically forms compounds with a +3 oxidation state. Some of these compounds exhibit strong paramagnetic properties, meaning they are highly magnetic.
Usage Examples
- Noun:
- Dysprosium is used in the control rods of nuclear reactors.
- The magnet contained a small amount of dysprosium to increase its strength.
- Scientists are studying the magnetic properties of dysprosium compounds.
Advanced Usage
- In material science: Dysprosium is critical in the manufacturing of high-performance permanent magnets, particularly neodymium-iron-boron (NdFeB) magnets, where it is added to improve coercivity (resistance to demagnetization) at high temperatures.
- The electric vehicle motor's efficiency relies on magnets doped with dysprosium.
- In nuclear technology: Due to its high neutron absorption cross-section, dysprosium is used in nuclear reactor control rods.
- Dysprosium titanate is a material considered for use in reactor control systems.
Variants and Related Words
- Dysprosium oxide (Dy₂O₃): A white, powdered compound of dysprosium used in ceramics and as a dopant in various materials.
- The phosphor was activated with dysprosium oxide.
- Dysprosium(III) ion (Dy³⁺): The common ionic form of dysprosium in its compounds.
- The solution contained green dysprosium(III) ions.
Synonyms
- Element 66: Referring to its atomic number.
- Dy: Its chemical symbol.
Related Phrases and Terms
- Rare earth element: The group to which dysprosium belongs.
- Dysprosium is one of the less abundant rare earth elements.
- Lanthanide: The series of elements including dysprosium.
- Dysprosium is a heavy lanthanide.
Noun
-
a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic
Khám phá thêm
Các từ liên quan
Từ đồng nghĩa
Từ có nhắc đến "dysprosium"
