Title of article :
Thermal properties of La2O3-doped ZrB2- and HfB2-based ultra-high temperature ceramics
Author/Authors :
Eugenio Zapata-Solvas، نويسنده , , E. and Jayaseelan، نويسنده , , D.D. and Brown، نويسنده , , P.M. and Lee، نويسنده , , W.E.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Abstract :
Thermal properties of La2O3-doped ZrB2- and HfB2-based ultra high temperature ceramics (UHTCs) have been measured at temperatures from room temperature to 2000 °C and compared with SiC-doped ZrB2- and HfB2-based UHTCs and monolithic ZrB2 and HfB2. Thermal conductivities of La2O3-doped UHTCs remain constant around 55–60 W/mK from 1500 °C to 1900 °C while SiC-doped UHTCs showed a trend to decreasing values over this range.
Keywords :
specific heat , Thermal expansion , thermal diffusivity , thermal conductivity , high temperature
Journal title :
Journal of the European Ceramic Society
Journal title :
Journal of the European Ceramic Society
