Manufacture and compositional analysis of silicon nitride composites with different carbon additions

Research output: Contribution to journalArticle

Abstract

Carbon black and graphite nano/micrograins and sintering additives (Al 2O3 and Y2O3) were added to silicon nitride starting powder. These mixtures were mechanochemically activated several hours in a planetary type alumina ball-mill in order to achieve a homogenous mass. As an alternative to nano- and micrograins, carbon fibres were added to carbon free silicon nitride batches. After dry pressing of rectangular bars sinter-HIP was applied. Structural, morphological and compositional analyses were performed on as-prepared samples. Bending strength and elastic modulus were found to be influenced by amount of carbon black and graphite introduced in silicon nitride matrix.

Original languageEnglish
Pages (from-to)5-9
Number of pages5
JournalKomunikacie
Volume6
Issue number1
Publication statusPublished - 2004

Fingerprint

Silicon nitride
Carbon black
Carbon
Composite materials
Graphite
Ball mills
Hot isostatic pressing
Bending strength
Carbon fibers
Alumina
Sintering
Elastic moduli
Powders

ASJC Scopus subject areas

  • Engineering(all)

Cite this

@article{46f547f446834190835d5b708bd2307d,
title = "Manufacture and compositional analysis of silicon nitride composites with different carbon additions",
abstract = "Carbon black and graphite nano/micrograins and sintering additives (Al 2O3 and Y2O3) were added to silicon nitride starting powder. These mixtures were mechanochemically activated several hours in a planetary type alumina ball-mill in order to achieve a homogenous mass. As an alternative to nano- and micrograins, carbon fibres were added to carbon free silicon nitride batches. After dry pressing of rectangular bars sinter-HIP was applied. Structural, morphological and compositional analyses were performed on as-prepared samples. Bending strength and elastic modulus were found to be influenced by amount of carbon black and graphite introduced in silicon nitride matrix.",
author = "C. Bal{\'a}zsi and F. W{\'e}ber and Z. Kasztovszky",
year = "2004",
language = "English",
volume = "6",
pages = "5--9",
journal = "Communications - Scientific Letters of the University of Zilina",
issn = "1335-4205",
publisher = "University of Zilina",
number = "1",

}

TY - JOUR

T1 - Manufacture and compositional analysis of silicon nitride composites with different carbon additions

AU - Balázsi, C.

AU - Wéber, F.

AU - Kasztovszky, Z.

PY - 2004

Y1 - 2004

N2 - Carbon black and graphite nano/micrograins and sintering additives (Al 2O3 and Y2O3) were added to silicon nitride starting powder. These mixtures were mechanochemically activated several hours in a planetary type alumina ball-mill in order to achieve a homogenous mass. As an alternative to nano- and micrograins, carbon fibres were added to carbon free silicon nitride batches. After dry pressing of rectangular bars sinter-HIP was applied. Structural, morphological and compositional analyses were performed on as-prepared samples. Bending strength and elastic modulus were found to be influenced by amount of carbon black and graphite introduced in silicon nitride matrix.

AB - Carbon black and graphite nano/micrograins and sintering additives (Al 2O3 and Y2O3) were added to silicon nitride starting powder. These mixtures were mechanochemically activated several hours in a planetary type alumina ball-mill in order to achieve a homogenous mass. As an alternative to nano- and micrograins, carbon fibres were added to carbon free silicon nitride batches. After dry pressing of rectangular bars sinter-HIP was applied. Structural, morphological and compositional analyses were performed on as-prepared samples. Bending strength and elastic modulus were found to be influenced by amount of carbon black and graphite introduced in silicon nitride matrix.

UR - http://www.scopus.com/inward/record.url?scp=2542583072&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2542583072&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:2542583072

VL - 6

SP - 5

EP - 9

JO - Communications - Scientific Letters of the University of Zilina

JF - Communications - Scientific Letters of the University of Zilina

SN - 1335-4205

IS - 1

ER -