The effect of microwave heating on the microstructure and the mechanical properties of reaction‐bonded boron carbide

Reaction‐bonded boron carbide composites were fabricated by both microwave (under Ar/10% H2) and conventional heating (under vacuum or Ar/10% H2). Silicon carbide (SiC) formation occurred in all cases and was slightly favored in the case of microwave heating under Ar/H2. The resulting microstructure...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of applied ceramic technology Vol. 17; no. 2; pp. 751 - 760
Main Authors Dutto, Mathieu, Goeuriot, Dominique, Saunier, Sébastien, Sao‐Joao, Sergio, Marinel, Sylvain, Frage, Nachum, Hayun, Shmuel
Format Journal Article
LanguageEnglish
Published Malden Wiley Subscription Services, Inc 01.03.2020
Wiley
Subjects
Boron carbide
Chemical Sciences
Composite materials
Electromagnetic fields
Heating
Material chemistry
Mechanical properties
microwave
Microwave heating
Morphology
Needles
reaction bonding
Silicon carbide
Microwave
Reaction bonding
Boron carbide
Online AccessGet full text

Cover

More Information
Summary:Reaction‐bonded boron carbide composites were fabricated by both microwave (under Ar/10% H2) and conventional heating (under vacuum or Ar/10% H2). Silicon carbide (SiC) formation occurred in all cases and was slightly favored in the case of microwave heating under Ar/H2. The resulting microstructures were influenced by the heating process and atmosphere; the SiC existed in the form of needles with conventional heating under vacuum. SiC small polygonal grains were present after microwave heating under Ar/H2. Both the atmosphere and the electromagnetic field influence the SiC morphology. Despite this difference, the hardness and toughness of composites obtained by both heating techniques were similar.
ISSN:1546-542X
1744-7402
DOI:10.1111/ijac.13379