PT Journal
AU Balazsi, C
   Weber, F
   Kasztovszky, Z
TI Manufacture and Compositional Analysis of Silicon Nitride Composites with Different Carbon Additions
SO Communications - Scientific Letters of the University of Zilina
PY 2004
BP 5
EP 9
VL 6
IS 1
DI 10.26552/com.C.2004.1.5-9
WP https://komunikacie.uniza.sk/artkey/csl-200401-0001.php
DE no keywords
SN 13354205
AB Carbon black and graphite nano/micrograins and sintering additives (Al2O3 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.
ER