페라이트(ferrite)란?

페라이트(ferrite)는 철(Fe)과 다른 금속 원소들의 결합으로 이루어진 특수한 세라믹 소재입니다. 이러한 페라이트 소재는 높은 자기 투과율(magnetic permeability)과 낮은 전기 전도도(electrical conductivity)를 갖기 때문에 전자 및 통신 산업에서 널리 사용됩니다. 특히, 주파수 범위에 따라 소프트 페라이트와 하드 페라이트로 분류됩니다.

소프트 페라이트는 고주파 전자기파를 처리하는 데 적합한 소재로, 전력 변압기, 인덕터, 안테나, EMI 차폐(전자기간섭 차폐)용 소재 등에 사용됩니다. 하드 페라이트는 영구 자석의 소재로 사용되며, 스피커, 모터, 발전기 등 다양한 분야에 활용됩니다.

페라이트 소재는 고온에서도 안정적인 성능을 유지하며, 경제적인 가격으로 제공되기 때문에 전자 및 통신 산업에서 여전히 중요한 소재로 인식되고 있습니다.

 

A ferrite is a specialized ceramic material composed of a combination of iron (Fe) and other metallic elements. These ferrite materials are widely used in the electronics and telecommunications industries because they have high magnetic permeability and low electrical conductivity. Specifically, they are categorized into soft ferrites and hard ferrites based on their frequency range.

Soft ferrites are suitable for handling high-frequency electromagnetic waves and are used in power transformers, inductors, antennas, and materials for EMI shielding (electromagnetic interference shielding). Hard ferrite is used as a material for permanent magnets, which are used in a variety of applications including speakers, motors, and generators.

Ferrite remains an important material in the electronics and telecommunications industries because it maintains stable performance at high temperatures and is available at an affordable price.