TY - JOUR

T1 - Zirconium diboride-based slurries with readily controlled viscosity for preparing ceramic matrix composites

AU - Shershov, Yaroslav M.

AU - Orbant, Roman A.

AU - Bannykh, Denis A.

AU - Utkin, Aleksei V.

AU - Svintsitskiy, Dmitry A.

AU - Baklanova, Natalya I.

N1 - his work was supported by the Russian Science Foundation (Grant No. 23-19-00212).

PY - 2025/3/14

Y1 - 2025/3/14

N2 - A comprehensive study of the rheological properties of slurries containing ZrB2 ceramic powder of different dispersity, as well as phenol–formaldehyde resin as a binder and acetone as a solvent, was undertaken. Dependences of viscosity and shear stress on shear rate of both solutions of phenol–formaldehyde resin in acetone and slurries containing ceramic fillers were investigated. The limits of the content of dispersed ZrB2 particles in the slurries were established, and the range of dynamic viscosities of the slurries depending on their composition was determined. A model was proposed to describe and predict the viscosity values of multicomponent slurries containing a ceramic filler, an organic resin, and a solvent was proposed. The ZrB2-SiC composites reinforced with continuous carbon fiber were formed using the resulting slurries of different viscosities. The penetration ability of the slurries into the carbon fiber, as well as the composite's overall microstructure, have been demonstrated to be significantly influenced by slurry viscosity.

AB - A comprehensive study of the rheological properties of slurries containing ZrB2 ceramic powder of different dispersity, as well as phenol–formaldehyde resin as a binder and acetone as a solvent, was undertaken. Dependences of viscosity and shear stress on shear rate of both solutions of phenol–formaldehyde resin in acetone and slurries containing ceramic fillers were investigated. The limits of the content of dispersed ZrB2 particles in the slurries were established, and the range of dynamic viscosities of the slurries depending on their composition was determined. A model was proposed to describe and predict the viscosity values of multicomponent slurries containing a ceramic filler, an organic resin, and a solvent was proposed. The ZrB2-SiC composites reinforced with continuous carbon fiber were formed using the resulting slurries of different viscosities. The penetration ability of the slurries into the carbon fiber, as well as the composite's overall microstructure, have been demonstrated to be significantly influenced by slurry viscosity.

KW - A. Suspensions

KW - B. Composites

KW - D. Borides

KW - Microstructure-final

UR - https://www.mendeley.com/catalogue/1da38405-eb9c-3393-ae0b-c4c9b7734637/

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-105000431719&origin=inward&txGid=87666bc30458c95866ea906e6c9a6b77

U2 - 10.1016/j.ceramint.2025.03.210

DO - 10.1016/j.ceramint.2025.03.210

M3 - Article

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

ER -