SINTERABILITY, CRYSTALLIZATION BEHAVIOR AND MICROWAVE DIELECTRIC PROPERTIES OF MULLITE MICROPARTICLES-ZBS (ZNO-B2O3-SIO2) GLASS COMPOSITES

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AKBARPOUR MARJAN; EBADZADEH TOURAJ; BANIJAMALI SARA

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Journal: CERAMIC SCIENCE & ENGINEERING Year:2016 | Volume:4 | Issue:4 Page(s): 39-52

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Title

SINTERABILITY, CRYSTALLIZATION BEHAVIOR AND MICROWAVE DIELECTRIC PROPERTIES OF MULLITE MICROPARTICLES-ZBS (ZNO-B2O3-SIO2) GLASS COMPOSITES

Author(s)

AKBARPOUR MARJAN | EBADZADEH TOURAJ | BANIJAMALI SARA | Issue Writer Certificate

Keywords

COMPOSITEQ2

MULLITEQ2

GLASSQ2

CRYSTALLIZATIONQ3

DIELECTRIC PROPERTIEQ2

Abstract

Dielectric ceramics have been greatly intended owing to their composition diversity and meeting the requirements of electronic industry and wireless communication. Among these ceramics, ceramic COMPOSITEs composed of a dielectric ceramic phase and a sintering aid GLASSy phase which offer dielectric features in the microwave frequency, have been utilized for application in the LTCC (low temperature co-fired ceramics) modules. The present work has been aimed to fabricate dielectric COMPOSITEs of MULLITE microparticles- ZBS (ZnO-B2O3-SiO2) GLASS for use as dielectric substrates in the LTCC technology. In this regard, COMPOSITEs with various volume ratios of MULLITE and ZBS GLASS were fabricated. Considering the sinterability evaluation at 950°C, COMPOSITE of 50 MULLITE-50 GLASS (Vol. %) was chosen as the optimized sintered COMPOSITE and focused for further examinations. Monitoring thermal behavior of the optimized COMPOSITE during sintering by means of X-ray diffratometry and differential thermal analysis revealed that MULLITE reacts with GLASSy phase at about 880oC; results in the formation of gahnite (ZnO.Al2O3) phase. Microstructural observation confirmed prismatic morphology of the gahnite crystals dispersed homogeneously in the GLASS matrix. Dielectric characterization utilizing network analyzer showed the resonance of the optimized COMPOSITE in the microwave frequency range. Dielectric permittivity (4.5) and quality factor (4704GHz) of the optimized COMPOSITE is in accordance with the requirements of the targeted technology.

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APA: Copy

AKBARPOUR, MARJAN, EBADZADEH, TOURAJ, & BANIJAMALI, SARA. (2016). SINTERABILITY, CRYSTALLIZATION BEHAVIOR AND MICROWAVE DIELECTRIC PROPERTIES OF MULLITE MICROPARTICLES-ZBS (ZNO-B2O3-SIO2) GLASS COMPOSITES. CERAMIC SCIENCE & ENGINEERING, 4(4), 39-52. SID. https://sid.ir/paper/227861/en

Vancouver: Copy

AKBARPOUR MARJAN, EBADZADEH TOURAJ, BANIJAMALI SARA. SINTERABILITY, CRYSTALLIZATION BEHAVIOR AND MICROWAVE DIELECTRIC PROPERTIES OF MULLITE MICROPARTICLES-ZBS (ZNO-B2O3-SIO2) GLASS COMPOSITES. CERAMIC SCIENCE & ENGINEERING[Internet]. 2016;4(4):39-52. Available from: https://sid.ir/paper/227861/en

IEEE: Copy

MARJAN AKBARPOUR, TOURAJ EBADZADEH, and SARA BANIJAMALI, “SINTERABILITY, CRYSTALLIZATION BEHAVIOR AND MICROWAVE DIELECTRIC PROPERTIES OF MULLITE MICROPARTICLES-ZBS (ZNO-B2O3-SIO2) GLASS COMPOSITES,” CERAMIC SCIENCE & ENGINEERING, vol. 4, no. 4, pp. 39–52, 2016, [Online]. Available: https://sid.ir/paper/227861/en

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