Microstructure of Spark Plasma-Sintered Silicon Nitride Ceramics

The microstructure and phase composition of the high-content Al 2 O 3 -Y 2 O 3 -doped spark plasma-sintered silicon nitride were investigated. Fully dense silicon nitride ceramics with a typical α-Si 3 N 4 equiaxed structure with average grain size from 200 to 530 nm, high elastic modulus of 288 GPa...

Full description

Saved in:
Bibliographic Details
Published inNanoscale research letters Vol. 12; no. 1; p. 293
Main Authors Lukianova, O. A., Novikov, V. Yu, Parkhomenko, A. A., Sirota, V. V., Krasilnikov, V. V.
Format Journal Article
LanguageEnglish
Published New York Springer US 24.04.2017
Springer Nature B.V
SpringerOpen
Subjects
Aluminum oxide
Ceramics
Chemistry and Materials Science
Elongation
Equiaxed structure
Hardness
Materials Science
Mechanical properties
Microstructure
Modulus of elasticity
Molecular Medicine
Nano Express
Nanochemistry
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
Nanotechnology and Nanomaterials 2016
Phase composition
Plasmas (physics)
Reviews
Silicon
Silicon nitride
Sintering
Spark plasma sintering
Yttrium oxide
Spark plasma sintering
Microstructure
Hardness
Silicon nitride
Online AccessGet full text

Cover

More Information
Summary:The microstructure and phase composition of the high-content Al 2 O 3 -Y 2 O 3 -doped spark plasma-sintered silicon nitride were investigated. Fully dense silicon nitride ceramics with a typical α-Si 3 N 4 equiaxed structure with average grain size from 200 to 530 nm, high elastic modulus of 288 GPa, and high hardness of 2038 HV were spark plasma sintered (SPSed) at 1550 °C. Silicon nitride with elongated β-Si 3 N 4 grains, higher hardness of 1800 HV, density of 3.25 g/cm 3 , and Young’s modulus 300 GPa SPSed at 1650 °C was also reviewed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1931-7573
1556-276X
DOI:10.1186/s11671-017-2067-z