Scholarlink

<p>Barium strontium titanate (Ba<sub>0.6</sub>Sr<sub>0.4</sub>TiO<sub>3</sub>, BST) is a material with excellent dielectric properties in the ferroelectric material system. Bismuth magnesium niobate (Bi<sub>1.5</sub>MgNb<sub>1.5</sub>O<sub>7</sub>, BMN) is a non-ferroelectric material. It was doped into BST, and four groups of samples BST-xBMN(x = 0-0.3) were prepared to discuss the influence of BMN on BST. BMN exists in an amorphous state between BST grains. Therefore, BST-xBMN still has a perovskite structure. Excessive doping is observed to cause pore formation within the BST. The doping of BMN reduces the dielectric constant of BST from 4500 to 1500 (at room temperature). However, it also reduces the dielectric loss of BST from 0.02 to 0.005. BMN improves the performance stability of BST. The dielectric properties of BST-xBMN are more stable than those of BST with the change of temperature or frequency.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

The study of BST-xBMN dielectric materials

  • 期刊论文

  • 发表日期：

    2026年1月8日

查看全文
  • Wei He,
  • Libin Gao,
  • Hongwei Chen,
  • Tianpeng Liang,
  • Jihua Zhang

摘要

Barium strontium titanate (Ba0.6Sr0.4TiO3, BST) is a material with excellent dielectric properties in the ferroelectric material system. Bismuth magnesium niobate (Bi1.5MgNb1.5O7, BMN) is a non-ferroelectric material. It was doped into BST, and four groups of samples BST-xBMN(x = 0-0.3) were prepared to discuss the influence of BMN on BST. BMN exists in an amorphous state between BST grains. Therefore, BST-xBMN still has a perovskite structure. Excessive doping is observed to cause pore formation within the BST. The doping of BMN reduces the dielectric constant of BST from 4500 to 1500 (at room temperature). However, it also reduces the dielectric loss of BST from 0.02 to 0.005. BMN improves the performance stability of BST. The dielectric properties of BST-xBMN are more stable than those of BST with the change of temperature or frequency.