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UID:pretalx-icr2024-YYKJGV@pretalx.com
DTSTART;TZID=CET:20240919T102000
DTEND;TZID=CET:20240919T104000
DESCRIPTION:Alumina-carbon-based refractories\, due to their unique physica
 l and mechanical properties\, are widely used as sliding gates\, shroud no
 zzles\, monoblock stoppers\, and sub-entry nozzles in the steelmaking indu
 stry. In this study\, the effect of modified surface of nano alumina addit
 ives and their composites with multi-walled carbon nanotubes with silane g
 roup in alumina-carbon refractories was investigated.\n In this regard\, n
 ano alumina was added to functionalized carbon nanotubes to prepare the na
 nocomposite. To achieve better distribution of the nano additives\, the pa
 rticles were first functionalized with APTES silane groups. Then\, 1% by w
 eight of the additive was added to the fine grain part and subsequently mi
 xed with the coarse particles of the alumina-carbon body. For the physical
  and mechanical property assessments\, the samples were shaped under uniax
 ial pressing at a pressure of 150 MPa\, tempered at 200°C for 6 hours\, a
 nd fired at 1450°C for 2 hours in a reducing atmosphere under a coke bed.
  \nApparent density\, apparent porosity\, and cold crushing strength (CCS)
  were determined according to the standards. For microstructural phenomena
  and phase analysis\, SEM and XRD were used. The results showed that the s
 ample containing 1% by weight of the alumina-MWCNT nanocomposite exhibited
  the highest cold crushing strength of approximately 156 MPa. Additionally
 \, the Weibull modulus results confirmed this finding. According to the SE
 M results\, the improvement in mechanical properties can be associated wit
 h the increased formation of SiC in the presence of Al2O3-MWCNT by the vap
 or-solid mechanism.
DTSTAMP:20260307T212357Z
LOCATION:K3
SUMMARY:Development of Mechanical Properties of Al2O3-C Refractories with S
 ilanized Nanocomposite Additives - Amirabbas Nourbakhsh\, Mohsen Nouri Khe
 zrabad
URL:https://pretalx.com/icr2024/talk/YYKJGV/
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