Results 81 to 90 of about 87,277 (311)
Wetting and non-wetting behaviour of silicon carbide grain boundaries
, 1999 9th International Conference on Intergranular and Interphase Boundaries in Materials (iib98) -- JUL 06-09, 1998 -- PRAGUE, CZECH REPUBLICWOS: 000080081000066Silicon carbide (SiC) grain boundaries have been observed to be free from intergranular films. On
Turan, Servet, Knowles, K. M.
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Grain boundaries of nanophase materials [PDF]
, 1993 Several iron alloys with nanometer-scale grain sizes were prepared by mechanical attrition in a high energy ball mill. Mossbauer spectrometry was used to measure the internal hyperfine magnetic fields. X-ray diffractometry (XRD) and transmission electron
Ouyang, Hao
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Advanced Engineering Materials, EarlyView.Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
wiley +1 more source
Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics
Advanced Engineering Materials, EarlyView.Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost +4 more
wiley +1 more source
Structure and dynamics of two-dimensional binary colloidal polycrystals and fluids
, 2022 The structural and dynamic behaviour of two-dimensional binary colloidal polycrystals and fluids are studied through optical microscopy and optical tweezing. Firstly, grain size evolution in an impurity doped polycrystalline monolayer is studied. A model
Hutchinson, Joseph David
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Small-angle Al2O3 grain boundaries achieve ultralow oxygen diffusion
Journal of Advanced CeramicsAl2O3 is extensively utilized as an oxidant barrier in aeroengines and gas turbines at elevated temperatures, and small-angle grain boundaries significantly reduce its oxygen permeation.
Wen-Jing Wang +4 more
doaj +1 more source
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
Investigation of Surface Grooves from Migrating Grain Boundaries
, 2002 Visible-light microscopy (VLM) and atomic-force microscopy (AFM) were used to study the progression of grain-boundary grooving and migration in high-purity alumina (Lucalox™).
Shelley R. Gilliss +7 more
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Grain boundaries in vortex matter [PDF]
, 2005 We explore the statistical properties of grain boundaries in the vortex polycrystalline phase of type-II superconductors. Treating grain boundaries as arrays of dislocations interacting through linear elasticity, we show that self-interaction of a ...
Miguel López, María del Carmen +5 more
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