Microstructure and mechanical properties of boron suboxide ceramics prepared by pressureless microwave sintering

Dmytro Demirskyi; Oleg Vasylkiv

doi:10.1016/j.ceramint.2016.05.151

Microstructure and mechanical properties of boron suboxide ceramics prepared by pressureless microwave sintering

Dmytro Demirskyi, Oleg Vasylkiv

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Monolithic boron suboxide ceramic was densified by microwave sintering at 28 GHz using highly stoichiometric B₆O powders. High heating rate of 200 °C min⁻¹ was maintained owing to special insulation cell which acts as additional microwave absorber. This insured homogeneous heating during sintering and resulted in dense and crack-free specimens. Room-temperature strength and fracture toughness of bulk B₆O ceramics were as high as 400 MPa and 2.8 MPa m^1/2, respectively.

Original language	English
Pages (from-to)	14282-14286
Number of pages	5
Journal	Ceramics International
Volume	42
Issue number	12
DOIs	https://doi.org/10.1016/j.ceramint.2016.05.151
Publication status	Published - 2016 Sep 1
Externally published	Yes

Keywords

Boron suboxide
High-heating rate
Microwave heating
Strength

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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abstract = "Monolithic boron suboxide ceramic was densified by microwave sintering at 28 GHz using highly stoichiometric B6O powders. High heating rate of 200 °C min−1 was maintained owing to special insulation cell which acts as additional microwave absorber. This insured homogeneous heating during sintering and resulted in dense and crack-free specimens. Room-temperature strength and fracture toughness of bulk B6O ceramics were as high as 400 MPa and 2.8 MPa m1/2, respectively.",

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AU - Demirskyi, Dmytro

AU - Vasylkiv, Oleg

PY - 2016/9/1

Y1 - 2016/9/1

N2 - Monolithic boron suboxide ceramic was densified by microwave sintering at 28 GHz using highly stoichiometric B6O powders. High heating rate of 200 °C min−1 was maintained owing to special insulation cell which acts as additional microwave absorber. This insured homogeneous heating during sintering and resulted in dense and crack-free specimens. Room-temperature strength and fracture toughness of bulk B6O ceramics were as high as 400 MPa and 2.8 MPa m1/2, respectively.

AB - Monolithic boron suboxide ceramic was densified by microwave sintering at 28 GHz using highly stoichiometric B6O powders. High heating rate of 200 °C min−1 was maintained owing to special insulation cell which acts as additional microwave absorber. This insured homogeneous heating during sintering and resulted in dense and crack-free specimens. Room-temperature strength and fracture toughness of bulk B6O ceramics were as high as 400 MPa and 2.8 MPa m1/2, respectively.

KW - Boron suboxide

KW - High-heating rate

KW - Microwave heating

KW - Strength

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JO - Ceramics International

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