Results 71 to 80 of about 423,030 (300)

Misorientation effect of grain boundary on the formation of discontinuous precipitation in second and third generation single crystal superalloys

MATEC Web of Conferences, 2014
[001] tilt artificial grain boundaries of Ni-based single crystal superalloys CMSX-4 and DD10 have been prepared by self-diffusion bonding. The microstructural stability of 0 ∼ 30∘ artificial grain boundaries have been investigated after heat treatment ...
Yu Zhengrong, Ding Xianfei, Zheng Yunrong, Cao Lamei, Feng Qiang   +4 more
doaj   +1 more source

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Unveiling electron scattering mechanism at Al-doped grain boundaries in Cu interconnects

Materials & Design
Doping by capping layers followed by thermal diffusion is an effective way to improve electromigration reliability in Cu interconnects and extend the lifetime of electronic devices.
Xinyu Jin, Xiangyu Ren, Guoxiang Cui, Shenghong Ju, Tao Hang, Ming Li, Yunwen Wu   +6 more
doaj   +1 more source

A Grain Boundary Regulates the Friction Behaviors between Graphene and a Gold Substrate

Crystals, 2019
The nanofriction of graphene is critical for its broad applications as a lubricant and in flexible electronics. Herein, using a Au substrate as an example, we have investigated the effect of the grain boundary on the nanofriction of graphene by means of ...
Pinxuan He, Qiang Cao, Pengjie Wang, Huaipeng Wang, Shaolong Zheng, Shuting Lei, Sheng Liu, Qing Peng   +7 more
doaj   +1 more source

Tilt Grain-Boundary Effects in S- and D-Wave Superconductors

, 1998
We calculate the s- and d-wave superconductor order parameter in the vicinity of a tilt grain boundary. We do this self-consistently within the Bogoliubov de Gennes equations, using a realistic microscopic model of the grain boundary.
A. Gurevich, A. M. Martin, A.M. Martin, C.C. Tsuei, D.A. Wollman, E. Il’ichev, E. Il’ichev, H. Ding, J. F. Annett, J. J. Hogan-O’Neill, J. Mannhart, J.F. Annett, J.F. Annett, K.A. Kouznetsov, K.K. Likharev, M. Covington, M. Fogelström, M. Prester, M. Sigrist, M.E. Zhitomirsky, P. Miller, R. Haydock, R. Kleiner, W. Belzig, W.N. Hardy, Weiyi Zhang, Y. Tanaka, Y. Tanaka, Y. Tanaka, Yu.S. Barash, Z.G. Ivanov   +30 more
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Quantifying the Energetics and Length Scales of Carbon Segregation to Fe Symmetric Tilt Grain Boundaries Using Atomistic Simulations

, 2013
Segregation of impurities to grain boundaries plays an important role in both the stability and macroscopic behavior of polycrystalline materials. The research objective in this work is to better characterize the energetics and length scales involved ...
Balluffi R W, Briant C L, Chen Q Z, Cowan J R, Foiles S M, K N Solanki, Kart H H, Li J, Liu X, M A Tschopp, N R Rhodes, Pugh S F, Sutton A P, Taheri M L, Takahashi H, Takahashi J, Yuasa M, Zhang L   +17 more
core   +1 more source

CONDUCTIVITY AND NEGATIVE-U FOR IONIC GRAIN-BOUNDARIES [PDF]

, 2002
The authors show that charge-transfer excitations (like 2M2+ to M++M3+) can be lowered greatly in energy near grain boundaries, where sites are no longer equivalent.
DUFFY, DM, STONEHAM, AM
core   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

Advanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo, Daniela Winsley Valereto Friozi, Vinícius de Oliveira, Marcia Cristina Branciforti   +3 more
wiley   +1 more source