Low temperature sintering and microwave dielectric properties of Ba2Ti9O20 ceramics using glass additions

Huang, Cheng−Liang; Weng, Min-Hung; Lion, Ciou-Tizer; Wu, C.T.

doi:10.1016/s0025-5408(00)00432-3

Cited by 74 publications

(32 citation statements)

References 11 publications

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“…It suggests that no reaction took place between BST and glass during sintering. Thus, the theoretical density of BST ceramics with glass additions can be calculated from the equation which is given by [16] where W 1 and W 2 were the weight percentages of BST and glass in the sample, respectively. D 1 and D 2 , representing the theoretical density of BST and glass, were 5.491 and 3.065 g/cm 3 , respectively.…”

Section: Resultsmentioning

confidence: 99%

Effects of SrO–B2O3–SiO2 glass additive on densification and energy storage properties of Ba0.4Sr0.6TiO3 ceramics

Chen

et al. 2012

J Mater Sci: Mater Electron

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SrO-B 2 O 3 -SiO 2 glass powders were prepared and employed as sintering aids to reduce the sintering temperature of Ba 0.4 Sr 0.6 TiO 3 ceramics. The effects of glass content and sintering temperature on the densification, dielectric properties and energy storage properties of Ba 0.4 Sr 0.6 TiO 3 ceramics have been investigated. The relative density characterization results indicate that densification of Ba 0.4 Sr 0.6 TiO 3 ceramics with glass content becomes apparently from sintering temperature of 1,060°C. XRD results show all Ba 0.4 Sr 0.6 TiO 3 ceramics exhibit a perovskite structure without the formation of a secondary phase. The dielectric constant and dielectric loss decreased gradually with increasing glass content. The relationship between dielectric constant and breakdown strength was discussed using the thermochemical model. A discharged energy density of 0.44 J/cm 3 with an energy efficiency of 67.4% was achieved for Ba 0.4 Sr 0.6 TiO 3 ceramic with 2.0 wt% glass addition sintered at 1,180°C.

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Section: Resultsmentioning

confidence: 99%

Effects of SrO–B2O3–SiO2 glass additive on densification and energy storage properties of Ba0.4Sr0.6TiO3 ceramics

Chen

et al. 2012

J Mater Sci: Mater Electron

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“…5 are expected due to the mixture of high ε r value oxides and lower ε r value glasses, and can be explained by the dielectric constant mixing rules [22]. There are three types of dielectric loss for glass: resonance-type vibration loss, migration loss and deformation loss [7]. Just as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Among these methods, low melting glass additions for liquid-phase sintering are lower in cost and easier to process than the others [6][7][8]. Some low-melting glasses and oxides such as ZnO, Bi 2 O 3 , CuO and B 2 O 3 , are used to lower the sintering temperatures of dielectrics [9,10] Among several LTCC systems, CaO-B 2 O 3 -SiO 2 (CBS) glass ceramics have been reported as a promising material for use in microelectronic fields because of excellent dielectric properties [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Low temperature sintering and properties of CaO–B2O3–SiO2 system glass ceramics for LTCC applications

Zhu

Zhou

Liu

et al. 2009

Journal of Alloys and Compounds

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“…Although both phases influence the physical properties, glass mainly acts as a low temperature sintering aid and ceramic filler helps in enhancing mechanical strength and in holding physical dimensions. Typical glass content in LTCC is 50vol% and varies between 60vol% and 80vol% [9] . But a high volume of glass is often detrimental to the properties of the composite and hence crystallizable glass-ceramic, in which crystallization from glass phase occuring after densification has distinct advantages for LTCC applications [10,11] .…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of crystallizable Glass/Al2O3 composites for LTCC material

Shao

Zhou

Zhu

et al. 2011

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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The investigated low temperature Co fi red ceramics(LTCC) composite of 60wt% CaO-Al 2 O 3 -B 2 O 3 -SiO 2 glass and 40wt% α-Al 2 O 3 as a filler is a non-reactive system, which is a critical part of the low temperature Co fi red ceramics process. Through a study on densifi cation process, the phase transformation and microstructure can be revealed. Its composites typically consist of CaO-Al 2 O 3 -B 2 O 3 -SiO 2 glass and α-Al 2 O 3 powders of average particle size (D 50 =3.49 m). The sintering behavior, phase evaluation, sintered morphology, and microwave dielectric properties were investigated. In the fire range of 800 to 900 ℃, the composites were crystallized after completion of densifi cation. It is found that the composites start to densify at 825 ℃, simultaneously, the dielectric constant (ε r ) reaches its maximum. With increasing heat-treatment temperatures, due to the loose microstructure of the material, tanδ increases slightly. The last of the sintered samples were identifi ed as partly Anorthite at 850 ℃. At that temperature it has ε r of 7.9 and tanδ less than 1×10 3 , and can be used as a promising LTCC material.

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Low temperature sintering and microwave dielectric properties of Ba2Ti9O20 ceramics using glass additions

Cited by 74 publications

References 11 publications

Effects of SrO–B2O3–SiO2 glass additive on densification and energy storage properties of Ba0.4Sr0.6TiO3 ceramics

Effects of SrO–B2O3–SiO2 glass additive on densification and energy storage properties of Ba0.4Sr0.6TiO3 ceramics

Low temperature sintering and properties of CaO–B2O3–SiO2 system glass ceramics for LTCC applications

Preparation and properties of crystallizable Glass/Al2O3 composites for LTCC material

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