Results 171 to 180 of about 311,819 (318)

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

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, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Programmable digital printing of organic single crystals for integrated electronics. [PDF]

Sci Adv
Li C, Yang H, Huang C, Hao L, Fan A, Geng B, He L, Zhang F, Duan S, Ren X, Hu W.   +10 more
europepmc   +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, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Minimization of Intrinsic Impurity Concentration in ZnGeP₂ Single Crystals via Directional Recrystallization. [PDF]

Int J Mol Sci
Gribenyukov A, Lysenko A, Yudin N, Slyunko E, Podzyvalov S, Zinovev M, Kuznetsov V, Kalsin A, Khudoley A, Baalbaki H, Kulesh M, Olshukov A.   +11 more
europepmc   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Mesoporous crystalline metal oxides

, 2009
Mesoporous monocrystalline metal oxides (e.g. Co₃O₄, Cr₂O₃, NiO, CeO₂, In₂O₃ and WO₃) templated by SBA-15 or KIT-6 were synthesised successfully by using a simple solvent-free approach, the so-called solid-liquid method, which was the principal ...
Yue, Wenbo
core  

Polymer-templated mesoscale assembly directs synthesis of centimetre-scale perovskite single crystals. [PDF]

Nat Commun
Sun J, Shao X, Fan W, Lei B, Wang X, Gui Y, Zhou J, Luo Y, Deng T, Wang R, Yang D, Xue J.   +11 more
europepmc   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Tm3+ and Nd3+ singly doped LiYF4 single crystals with 3-5 mu m mid-infrared luminescence

, 2014
Mid-infrared (MIR) emissions of 2.4 and 3.5 mu m from Tm3+:LiYF4 single crystals attributed to H-3(4) -> H-3(5) and H-3(5) -> F-3(4) transitions as well as MIR emissions of 4.2, 4.3, and 4.5 mu m from Nd3+: LiYF4 lasers attributed to I-4(15/2) -> I-4(13 ...
Xia, Haiping, Tang, Lei, Peng, Jiangtao, Zhang, Yuepin, Jiang, Haochuan, Wang, Peiyuan, Li, Shanshan   +6 more
core  

Deformation-Induced Formation of Stray Grains in Additive Manufacturing of Single Crystals. [PDF]

Adv Sci (Weinh)
Zhang D, Guo Z, Li Y, Wang L, Wu Y, Sun D, Yan W, Guo Y, Wang H, Liu W, Tao Y, Zhang B.   +11 more
europepmc   +1 more source