Low temperature sintering BBSZ glass modified Li2MgTi3O8 microwave dielectric ceramics

Li2+xZrO3Fx (0 ≤ x ≤1.25): A new high‐Q × f and temperature‐stable microwave dielectric ceramic system for LTCC applications

“…[6][7][8][9][10][11][12][13][14] However, the use of sintering additives (e.g., Li 2 CO 3 , H 3 BO 3 , and BaCu(B 2 O 5 ), and low-melting glass) will, without exception, decrease the Q × f value. 6,7,9,14 Moreover, the additions of τ f compensator materials (e.g., TiO 2 and CaTiO 3 ) usually lead to an increase in the sintering temperature. 8,[10][11][12][13] Therefore, in recent years, additivefree LTCC systems have aroused much attention from researchers who study electronic ceramic materials.…”

“…Nevertheless, it is not easy to exploit LTCC materials, because dielectric ceramics usually have sintering temperatures higher than 950°C as well as large negative τ f levels (e.g., ∼−50 ppm/°C). A conventional solution is to use sintering additives and τ f compensators 6–14 . However, the use of sintering additives (e.g., Li 2 CO 3 , H 3 BO 3 , and BaCu(B 2 O 5 ), and low‐melting glass) will, without exception, decrease the Q × f value 6,7,9,14 .…”

“…A conventional solution is to use sintering additives and τ f compensators. [6][7][8][9][10][11][12][13][14] However, the use of sintering additives (e.g., Li 2 CO 3 , H 3 BO 3 , and BaCu(B 2 O 5 ), and low-melting glass) will, without exception, decrease the Q × f value. 6,7,9,14 Moreover, the additions of τ f compensator materials (e.g., TiO 2 and CaTiO 3 ) usually lead to an increase in the sintering temperature.…”

Synthesis and Microwave Dielectric Properties of BBSZ-Zinc Silicate Based Material for LTCC Applications

“…The composites made using these sintering aids have shown excellent dielectric properties, and their suitability for reducing the sintering temperature has been shown. [15][16][17][18][19] Similarly, B 2 O 3 -Bi 2 O 3 -SiO 2 -ZnO (BBSZ) glass has been reported as an effective low-temperature sintering aid and possesses acceptable microwave dielectric properties. 16,20,21 The BBSZ glass-based composite has also been reported as a very good microwave dielectric material for ultra-low sintering temperature applications.…”

“…[15][16][17][18][19] Similarly, B 2 O 3 -Bi 2 O 3 -SiO 2 -ZnO (BBSZ) glass has been reported as an effective low-temperature sintering aid and possesses acceptable microwave dielectric properties. 16,20,21 The BBSZ glass-based composite has also been reported as a very good microwave dielectric material for ultra-low sintering temperature applications. The BBSZ glass with 50 vol.% addition of Al 2 O 3 has shown a dielectric constant of 8.5 and loss tangent of 0.008 at 1-GHz frequency at a very low sintering temperature of $ 650°C.…”