칼륨 니오베이트

그림문자(GHS)

칼륨 니오베이트 화학적 특성, 용도, 생산

• 화학적 성질

  -100 mesh with 99.9% purity; white powder(s) [STR93] [CER91]

• 용도

  Potassium niobate can be used to prepare bismuth sodium titanate(BNT)-KN ceramics (BNT–KN ceramics) by the mixed oxide method. The addition of KN to the BNT system increases the dielectric and piezoelectric properties of the BNT-KN ceramics. These properties of the ceramic system are suitable for the development of lead-free capacitors. Cu dopped KNbO₃ single crystals also found application in semiconductor laser technology because Cu doping resulted in electronic states with near-infrared absorption bands.

• 일반 설명

  Potassium niobate (KNbO₃, KN) is a perovskite-type well-known ferroelectric material with a wide range of applications in electromechanical, nonlinear optical, frequency doubler, and holographic storage system applications. Single crystal of a KNbO₃ is known to have high piezoelectric activity because of its high electromechanical coupling factors. Therefore KN materials have received much interest in the development of lead-free piezoelectric materials.

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