Results 51 to 60 of about 15,934 (272)

Modelling of gas permeation through ceramic coatings produced by thermal spraying

, 2008
An analytical model has been developed for simulation of gas permeation through thermal spray coatings, and for prediction of the permeability. The model is based on a geometrical representation of the coating microstructure.
Clyne, T.W., Golosnoy, I.O., Paul, S.
core   +1 more source

Effect of thermal cycling frequency on the durability of Yb-Gd-Y-based thermal barrier coatings [PDF]

, 2019
The effects of thermal cycling frequency and buffer layer on the crack generation and thermal fatigue behaviors of Yb–Gd–Y-stabilized zirconia (YGYZ)-based thermal barrier coatings (TBCs) were investigated through thermally graded mechanical fatigue ...
Choi, Baig-Gyu, Jung, Yeon-Gil, Lu, Zhe, Lyu, Guanlin, Park, Hyeon-Myeong, Zhang, Jing   +5 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Crack-Resistance Behavior of an Encapsulated, Healing Agent Embedded Buffer Layer on Self-Healing Thermal Barrier Coatings [PDF]

, 2019
In this work, a novel thermal barrier coating (TBC) system is proposed that embeds silicon particles in coating as a crack-healing agent. The healing agent is encapsulated to avoid unintended reactions and premature oxidation.
Choi, Baig-Gyu, Jung, Yeon-Gil, Kim, In-Soo, Lyu, Guanlin, Paik, Ungyu, Song, Dowon, Song, Taeseup, Zhang, Jing   +7 more
core   +2 more sources

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Surface modification of HVOF thermal sprayed WC–CoCr coatings by laser treatment [PDF]

, 2010
In this work the affects of laser characteristics on microstructure and microhardness of high velocity oxygen fuel sprayed (HVOF) WC–CoCr coatings were investigated.
A. Forn, AK Maiti, B Wielage, BE Bodger, BS Mann, D. Brabazon, E Cappelli, E. Chikarakara, G Barbezat, IM Hutchings, J Mateos, J. A. Picas, JKN Murthy, M. Punset, P Serra, RJK Wood, S. Aqida, S. Naher, SH Zhang, TY Cho   +19 more
core   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

Advanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin, Marvin Erck, Kevin Jasutyn, Katja Radermacher, Andreas Bund, Mario Kurniawan   +5 more
wiley   +1 more source

Determination of microstructural parameters in AlCrFeCoNi high-entropy alloy coatings by Williamson-Hall analysis

Results in Engineering
AlCrFeCoNi high-entropy alloy (HEA) coatings were deposited on 316 L stainless steel by atmospheric plasma spraying (APS) technique. The high energy ball-milling method with different milling duration was used to prepare the AlCrFeCoNi powder feedstock ...
Farzin Ghadami
doaj   +1 more source

Effects of Impurity Content on the Sintering Characteristics of Plasma-Sprayed Zirconia [PDF]

, 2007
Yttria-stabilized zirconia powders, containing different levels of SiO2 and Al2O3, have been plasma sprayed onto metallic substrates. The coatings were detached from their substrates and a dilatometer was used to monitor the dimensional changes they ...
A. Cipitria, A. Kulkarni, A. Kulkarni, A.J. Allen, B. Siebert, B.Z. Janos, D. Stover, D. Stover, D.M. Zhu, D.M. Zhu, E.W. Washburn, H.C. Chen, H.C. Chen, H.E. Eaton, I.O. Golosnoy, I.O. Golosnoy, J. Brakel Van, J. Ilavsky, J. Ilavsky, J. Ilavsky, J.A. Thompson, K. Matsui, L. Singheiser, L. Xie, M. Gustavsson, M. Tamura, M.F. Ashby, M.N. Rahaman, M.R. Dorfman, P. Strunz, R. Hamacha, R. Vassen, R.A. Miller, S. A. Tsipas, S. Paul, S. Sodeoka, S. Stemmer, S.A. Tsipas, S.M. Lakiza, S.R. Choi, T.A. Dobbins, T.W. Clyne, V. Teixeira   +42 more
core   +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