SiC-TiB2 composites with up to 50 vol% TiB2 were fabricated by in-situ reaction between TiO2, B4C and C. The densification of the uniaxially pressed samples was done using pressureless sintering in the presence of sintering aids consisting of Al2O3 and Y2O3. The influence of the volume fraction of TiB2 and sintering temperature on density and fracture toughness was examined. It was found that fracture toughness is strongly affected by the volume fraction of TiB2. The presence of TiB2 particles suppresses the grain growth of SiC and facilitates different toughening mechanisms to operate which, in turn, increases fracture toughness of the composite. The highest value for fracture toughness of 5.7 MPa m(1/2) measured in samples with 30 vol% TiB2 sintered at 1940 degrees C. Crown Copyright (C) 2010 Published by Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Кључне речи:
Sintering / Composites / Toughness and toughening / SiC
TY - JOUR
AU - Bučevac, Dušan
AU - Bošković, Snežana B.
AU - Matović, Branko
AU - Krstic, Vladimir
PY - 2010
UR - https://vinar.vin.bg.ac.rs/handle/123456789/4094
AB - SiC-TiB2 composites with up to 50 vol% TiB2 were fabricated by in-situ reaction between TiO2, B4C and C. The densification of the uniaxially pressed samples was done using pressureless sintering in the presence of sintering aids consisting of Al2O3 and Y2O3. The influence of the volume fraction of TiB2 and sintering temperature on density and fracture toughness was examined. It was found that fracture toughness is strongly affected by the volume fraction of TiB2. The presence of TiB2 particles suppresses the grain growth of SiC and facilitates different toughening mechanisms to operate which, in turn, increases fracture toughness of the composite. The highest value for fracture toughness of 5.7 MPa m(1/2) measured in samples with 30 vol% TiB2 sintered at 1940 degrees C. Crown Copyright (C) 2010 Published by Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2 - Ceramics International
T1 - Toughening of SiC matrix with in-situ created TiB2 particles
VL - 36
IS - 7
SP - 2181
EP - 2188
DO - 10.1016/j.ceramint.2010.06.001
ER -
@article{
author = "Bučevac, Dušan and Bošković, Snežana B. and Matović, Branko and Krstic, Vladimir",
year = "2010",
abstract = "SiC-TiB2 composites with up to 50 vol% TiB2 were fabricated by in-situ reaction between TiO2, B4C and C. The densification of the uniaxially pressed samples was done using pressureless sintering in the presence of sintering aids consisting of Al2O3 and Y2O3. The influence of the volume fraction of TiB2 and sintering temperature on density and fracture toughness was examined. It was found that fracture toughness is strongly affected by the volume fraction of TiB2. The presence of TiB2 particles suppresses the grain growth of SiC and facilitates different toughening mechanisms to operate which, in turn, increases fracture toughness of the composite. The highest value for fracture toughness of 5.7 MPa m(1/2) measured in samples with 30 vol% TiB2 sintered at 1940 degrees C. Crown Copyright (C) 2010 Published by Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Toughening of SiC matrix with in-situ created TiB2 particles",
volume = "36",
number = "7",
pages = "2181-2188",
doi = "10.1016/j.ceramint.2010.06.001"
}
Bučevac, D., Bošković, S. B., Matović, B.,& Krstic, V.. (2010). Toughening of SiC matrix with in-situ created TiB2 particles. in Ceramics International, 36(7), 2181-2188.
https://doi.org/10.1016/j.ceramint.2010.06.001
Bučevac D, Bošković SB, Matović B, Krstic V. Toughening of SiC matrix with in-situ created TiB2 particles. in Ceramics International. 2010;36(7):2181-2188.
doi:10.1016/j.ceramint.2010.06.001 .
Bučevac, Dušan, Bošković, Snežana B., Matović, Branko, Krstic, Vladimir, "Toughening of SiC matrix with in-situ created TiB2 particles" in Ceramics International, 36, no. 7 (2010):2181-2188,
https://doi.org/10.1016/j.ceramint.2010.06.001 . .
