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Incorporating sugarcane bagasse ash into Al 2 O 3 ceramic tapes
Author(s) -
Silva Larissa B.,
Alves Hugo P. A.,
Freitas Anna K. C.,
Marques Sheyla K. J.,
Acchar Wilson
Publication year - 2020
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13640
Subject(s) - materials science , bagasse , ceramic , sintering , tape casting , dielectric , composite material , scanning electron microscope , microstructure , pulp and paper industry , optoelectronics , engineering
High‐temperature co‐fired ceramic (HTCC) technology aims to incorporate fluxing materials into ceramic tapes to decrease the sintering temperature. In this context, we incorporate waste from sugarcane bagasse ash (SCBA) into alumina (Al 2 O 3 ) tapes. We report an experimental investigation of the structural, physical, mechanical, and dielectric properties of the Al 2 O 3 tape with the addition of the SCBA waste. The tape casting technique prepared the ceramic tape. The materials under study were characterized by rheology, thermogravimetry, dilatometry, X‐ray diffraction, scanning electron microscopy, relative density, Vickers microhardness, mechanical resistance, and dielectric measurements. The dilatometry results confirm that the addition of the SCBA waste remarkably reduces the sintering temperature of the Al 2 O 3 tape to 1200 ° C. The physical, mechanical, and dielectric properties are improved with the addition of the SCBA waste, which makes our discoveries attractive from an environmental and economic point of view. Besides, the stabilization and high dielectric constant of the Al 2 O 3 ‐SCBA tape becomes a promising material for aircraft turbine applications.