1. Introduction
Since their introduction in the 1980s, Neodymium-Iron-Boron (NdFeB) magnets have become the strongest type of permanent magnets available, often called the “King of Magnets.”
Depending on the production process, NdFeB magnets can be classified into two major categories:
👉 Sintered NdFeB and Bonded NdFeB.
Although both share the same main magnetic phase (Nd₂Fe₁₄B), they differ significantly in manufacturing process, microstructure, magnetic performance, and application fields.
This article provides a detailed comparison to help engineers and designers choose the right material for their needs.










