About this document
Advances in Permanent Magnet Applications by George Acosta is a document available to read on EtoBox.
The document discusses the history and development of permanent magnets over the 20th century. It describes how early magnets were made of materials like loadstones and steel, which had low magnetic properties. Developments in alloying led to Alnico magnets in the 1930s, greatly improving magnetic performance. Revolutionary advances since the 1970s include ferrite magnets and rare-earth magnets like samarium cobalt and neodymium iron boron, increasing magnetic energy products by up to 5 times. These modern
- Author
- George Acosta
- Language
- EN