Thermophysical properties of several nitrides prepared by spark plasma sintering

Processing and properties of ZrC, ZrN and ZrCN ceramics: a review

“…11 and 12). 21 47 for a 70% TD ZrN sample are shown as they match quite well with literature, and extrapolation to a fully dense material using equation (6) may be inappropriate for such a large porosity. 47 A positive trend is seen for both the carbide and nitride, which is evidence for metallic bonding.…”

“…Perhaps other factors were causing the high porosity of the materials, such as particle size or sintering programme, as these values are less than observed elsewhere without oxide doping. 21,24,25 This reduction in porosity was attributed to the removal of surface oxide and enhanced diffusion as observed by others. 26 28 attributes this observation to the high oxygen impurities of the commercial powder (7.697 wt-% compared with 0.734 wt-% for the produced powders), although no experimental technique for chemical analysis is given and no errors are reported.…”

“…This combination of bonding gives the materials an unusual mixture of advantageous properties such as high hardness (*25 GPa) and very high melting temperatures (>3000 K) along with good thermal and electrical conductivity (>10 W m 21 respectively). 1 As a result of these properties, zirconium carbide and nitride are receiving increased attention for use in advanced nuclear power plants (NPPs) and as de facto ultrahigh temperature ceramics for other applications in extreme environments.…”

Thermophysical characterisation of ZrCxNy ceramics fabricated via carbothermic reduction–nitridation

“…Due to this increased interest recent work has focused on assessing thermophysical properties of ZrN and mixed phases of actinide nitrides dispersed in ZrN [8][9][10][11][12][13][14].…”

Thermophysical properties of Th1−xUxO2pellets prepared by spark plasma sintering technique

“…The spark plasma sintering (SPS) technique was used to produce the high-density pellets. In the sintering process, an electric current flows through the sample and conductive dies, which provides rapid and low-temperature sintering [4,5]. Additionally, the low-temperature heat capacity of ThO 2 was measured for evaluation of the Debye temperature and thermodynamic properties.…”