Spark plasma sintering (SPS) is an advanced pressure-assisted sintering technology that
combines the application of uniaxial pressure with rapid current-induced heating. The so …

This paper presents a brief description of the role of interfacial energies in the understanding
and control of nanocrystalline complex oxides in both particulate and bulk forms. Interfacial …

A number of grain boundary phenomena in ionic materials, in particular, anomalous (either
depressed or enhanced) charge transport, have been attributed to space charge effects …

Nanomaterials can exhibit improved electrochemical performance in cathode applications,
but their inherently high surface areas cause unconventional instability, leading to capacity …

Supercrystalline nanocomposites (SCNCs) are a new category of nanostructured materials,
with organically functionalized nanoparticles assembled into periodic structures, reminiscent …

The increase in hardness with decreasing grain size is a well‐established size effect known
as the Hall‐Petch relationship. In ceramics, there has been controversy surrounding the …

Surface energy (γS) and grain boundary energy (γGB) of yttrium oxide (Y2O3) were
determined by analyzing the heat of sintering (ΔHsintering) using differential scanning …

Abstract Beryllium-magnesium aluminate (Be 0.1 Mg 0.9 Al 2 O 4 and Be 0.2 Mg 0.8 Al 2 O
4) nanoparticles are synthesized by a coprecipitation method and sintered using Spark …

Typical models of polycrystalline ionic materials treat the grain boundary properties as
single valued, without consideration of the full range of values that define the …

An increase in hardness with reducing grain sizes is commonly observed in oxide ceramics
in particular for grain sizes below 100 nm. The inverse behavior, meaning a decrease in …