Sintered materials studied by small-angle neutron scattering

Characterization of Ceramics by X‐Ray and Neutron Small‐Angle Scattering

“…(2) Sintering, Cavitation, and Damage Effects SAS methods have addressed a range of void characterization issues in ceramic materials development, [5][6][7][8][9][10][11][40][41][42]86,[126][127][128][129][130][131][132][133][134][135][136][137][138][139][140][141][142] such as elucidating aspects of the pore evolution during sintering, or quantifying the void defect and cavitation morphology that develops as a result of creep or other damage effects. The evolution of the void size distribution during the sintering and densification of nanostructured ceramics and gels has been comprehensively studied by both SANS and SAXS.…”

“…Taking advantage of these developments, SAS studies of ceramic systems now represent a growing field with major research activities in areas that include: structural and electronic ceramics and glasses; 26–29,43–50,94,96–116 perovskites, high T C superconductors, solid oxide fuel cells (SOFCs) and H storage materials; 4,75,117–125 sintering, cavitation and damage effects; 5–11,40–42,86,126–142 nanostructured and fractal solids and suspensions; 30,31,51,52,76,82–85,90,143–166 interfaces, membranes, thin films and coatings; 3,12–16,21–25,34,167–178 alloy/polymer/ceramic composites; 1,2,17–20,179–187 fine ceramics and archeology; 36 and cement and concrete science 188–215 . Unifying aspects that run through much of this work are the need to quantify the microstructure over many length scales, and to connect representative phenomena observed at micrometer and nanometer length‐scales.…”

Effect of ageing on microstructure changes in EB-PVD manufactured standard PYSZ top coat of thermal barrier coatings

“…[7][8][9][10][11][12][13][14] Particularly, the studies focus on measurements of Porod scattering 15 which are derived from the terminal slope in SANS spectra and are used to determine the characteristics of voids in a porous material yielding quantitative information on the corresponding interface surface area. Porod scattering is a technique which does not require a void shape model and is especially useful for studies of void systems with complex shapes.…”

Characterization of anisotropic pores and spatially oriented precipitates in sintered Mo-base alloys using small-angle neutron scattering

“…However, the evaluation is more complicated if the scattering is anisotropic. Aligned nano-scaled precipitates with a plate-like morphology can produce a characteristic star-like scattering pattern with streaks (Messoloras & Stewart, 1988;Gilles et al, 1998;Harmat et al, 2000;Fratzl, 2003;De Geuser et al, 2012). In addition, the scattering is often superimposed by Porod scattering from large-scale structures (Guinier & Fournet, 1955).…”