Back to Search Start Over

Sintering behaviors, microstructures and dielectric properties of CaO-B2O3-SiO2 glass ceramic for LTCC application with various network modifiers content.

Authors :
Yang, Chengyu
Li, Junkai
Lu, Yang
Shan, Yiting
Xian, Qianqian
Zhou, Hongqing
Source :
Journal of Materials Science: Materials in Electronics; Nov2021, Vol. 32 Issue 22, p26655-26665, 11p
Publication Year :
2021

Abstract

CaO-B<subscript>2</subscript>O<subscript>3</subscript>-SiO<subscript>2</subscript> (CBS) glass ceramic with various glass network modifiers were synthesized to develop a kind of material sintered at low temperature for multi-layer ceramic substrates. The influence of double alkali metal oxides (Na<subscript>2</subscript>O and K<subscript>2</subscript>O) on sintering characteristics, microstructures and dielectric properties of CBS glass ceramic were investigated. XRD analysis showed that the major crystalline phase was β-CaSiO<subscript>3</subscript> and CaB<subscript>2</subscript>O<subscript>4</subscript>, and the strength of the peak increased with the addition of network modifiers. DSC curve revealed that the process of crystallization and softening were obviously affected. SEM photographs exhibited that the microstructures were composed of amorphous phases, pores and crystalline phases. FTIR showed that the additives changed the continuity of CBS glass structure. An appropriate amount of Na<subscript>2</subscript>O and K<subscript>2</subscript>O additives could significantly improve the sintering characteristics and dielectric properties. CBS samples with 1.5 wt% (Na<subscript>2</subscript>O + K<subscript>2</subscript>O) sintered at 850 °C for 15 min presented the best performances with the bulk density of 2.53 g/cm<superscript>3</superscript>, ε<subscript>r</subscript> = 5.94 and tanδ = 1.22 × 10<superscript>−3</superscript> at 10 GHz. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09574522
Volume :
32
Issue :
22
Database :
Complementary Index
Journal :
Journal of Materials Science: Materials in Electronics
Publication Type :
Academic Journal
Accession number :
153318874
Full Text :
https://doi.org/10.1007/s10854-021-07042-7