Relationship between performance and microvoids of aramid fibers revealed by two-dimensional small-angle X-ray scattering

The effect of microvoids on the performance of aramid fibers was revealed by two-dimensional small-angle scattering and full pattern fitting.

Orientation domains in the intermediate product Na₃TiOF₅ during the synthesis of anatase TiO₂ nanosheets with exposed reactive {001} facets

With a combination of transmission electron microscopy and group theory analysis, this article presents a systematic structural investigation of possible monoclinic domain variants in Na₃TiOF₅, which are induced by a ferroelastic phase transition from a high-temperature cubic phase to a low-temperature monoclinic phase.

Ordered and twinned structure in hexagonal-based potassium tungsten bronze nanosheets

Hexagonal-based potassium tungsten bronze (K_xWO₃) nanosheets, which exhibited an ordered monoclinic superstructure, were successfully synthesized via a simple heating method. Three 120° twinning variants were present in the ordered monoclinic phase, and the coexistence of three monoclinic variants was verified by a combined X-ray diffraction and transmission electron microscopy examination.