The accurate determination of three-dimensional crystal habit (long–intermediate–short axis) is a requirement to enable correct stereological conversion of 2D crystal size measurements to true 3D crystal size distributions (CSDs). In this contribution, we introduce a database and spreadsheet program which provides an objective estimate of true crystal habit from raw 2D measurements. The databas...

Antiferroelectric (AFE) materials are of great interest owing to their scientific richness and utility in high-energy density capacitors. Here, the history AFEs is reviewed, characteristics antiferroelectricity phase transition an AFE material described. energetically close ferroelectric (FE) phases, thus both electric field strength applied stress (pressure) influence nature transition. With c...

An envelope function is derived which multiplies the pair distribution function (PDF) of an infinite solid to obtain that of a spherical particle with the same crystal structure. Distributions of particle sizes are then considered, and the analytical results are used to predict the distribution from a PDF obtained experimentally. The peak broadening for the associated structure factor, expresse...

Abstract: Most properties of nanoparticles are size-dependent. In fact, the novel properties of nanoaprticles do not prevail until the size has been reduced to the nanometer scale. The particle size and size distribution of alumina nanoparticle, as a critical properties, have been determined by transmission electron microscopy (TEM), photon correlation spectroscopy (PCS), surface area analysis ...