...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Japanese journal of applied physics >Effects of Additives on the Densification and Microwave Dielectric Properties of Binary CaO-B_2O_3-SiO_2 Glass
【24h】

Effects of Additives on the Densification and Microwave Dielectric Properties of Binary CaO-B_2O_3-SiO_2 Glass

机译：添加剂对二元CaO-B_2O_3-SiO_2玻璃致密化和微波介电性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Glass systems, consisting of binary CaO-B_2O_3-SiO_2 (CBS) glass (referred to as glass AB) and various amounts of Li_2CO_3, TiO_2, and Al_2O_3 additives, were prepared in this study. The effects of the additives on the densification and microwave dielectric properties of binary CBS glass were investigated. Binary glass AB was not densified until the sintering temperature reached 875℃; however, with the addition of 1 wt% Li_2CO_3 (referred to as glass L1), the glass achieved a maximum density at 825℃. The resultant glass-ceramics contained a major phase quartz, SiO_2, and a minor phase, CaB_2O_4, and had a dielectric constant (ε_r) varying from 4.10 to 4.23 and a minimum tan δ of 0.0015, as frequency increased from 4.3 to 18.6GHz. For glass L1 with further addition of the ceramic filler Al_2O_3 (up to 30 wt%), the maximum densification was reached at 775℃ and the formation of CaB_2O_3 and SiO_2 crystallites was suppressed. Both ε_r and tan δ increased with the Al_2O_3 content of the glass-ceramics. Further addition of the crystallization agent TiO_2 (up to 5 wt%) to glass L1 slightly reduced the sintering temperature to 800℃. The X-ray diffraction (XRD) intensities of the quartz SiO_2 and CaB_2O_4 crystallites as well as the ε_r and tan δ values of the resultant glass-ceramic increased with the amount of TiO_2 added.
机译：本研究制备了由二元CaO-B_2O_3-SiO_2（CBS）玻璃（称为玻璃AB）和各种量的Li_2CO_3，TiO_2和Al_2O_3添加剂组成的玻璃体系。研究了添加剂对二元CBS玻璃的致密化和微波介电性能的影响。直到烧结温度达到875℃，二元玻璃AB才被致密化。然而，加入1wt％的Li_2CO_3（称为玻璃L1），玻璃在825℃达到最大密度。所得的玻璃陶瓷包含主相石英SiO_2和次相CaB_2O_4，介电常数（ε_r）在4.10至4.23之间变化，最小tanδ为0.0015，随频率从4.3增加到18.6GHz。对于进一步添加陶瓷填料Al_2O_3（最高30 wt％）的玻璃L1，在775℃达到最大致密化，并且抑制了CaB_2O_3和SiO_2微晶的形成。 ε_r和tanδ随玻璃陶瓷中Al_2O_3含量的增加而增加。向玻璃L1中进一步添加结晶剂TiO_2（至多5wt％）使烧结温度降至800℃。石英SiO_2和CaB_2O_4微晶的X射线衍射（XRD）强度以及所得玻璃陶瓷的ε_r和tanδ值随TiO_2添加量的增加而增加。

著录项

  • 来源
    《Japanese journal of applied physics》 |2010年第2issue1期|p.021101.1-021101.5|共5页
  • 作者

    Sea-Fue Wang; Chuang-Chung Chiang; Yuh-Ruey Wang; Yung-Fu Hsu;

  • 作者单位

    Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 106, Taiwan, R.O.C.;

    Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 106, Taiwan, R.O.C.;

    Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 106, Taiwan, R.O.C.;

    Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 106, Taiwan, R.O.C.;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号