Results 51 to 60 of about 5,593,365 (239)

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Sol–gel processing and characterization of (RE-Y)-zirconia powders for thermal barrier coatings [PDF]

, 2011
The effect of doping on the structural, morphological and thermal properties of ZrO2–XO1.5 (X=Y, La, Sm, Er) solid solutions for thermal barrier (TBC) applications was investigated. Oxide powders of various compositions from 9.7 to 40 mol% XO1.5 (X=Y, La,
Ansart, Florence, Bonino, Jean-Pierre, M. Dalbin, Fenech, Justine, A. Barnabe, F. Ansart, J.P. Bonino, Barnabé, Antoine, J. Fenech, Dalbin, Michel   +9 more
core   +1 more source

Prediction of coating degradation based on “Environmental Factors–Physical Property–Corrosion Failure” two-stage machine learning

npj Materials Degradation
The corrosion failure prediction of coating materials in diverse environments is of great significance for service performance evaluation. This work proposes a two-stage machine learning method that makes use of various data, including environmental ...
Weiting Chen, Lingwei Ma, Yiran Li, Dequan Wu, Kun Zhou, Jinke Wang, Zhibin Chen, Xin Guo, Zongbao Li, Thee Chowwanonthapunya, Xiaogang Li, Dawei Zhang   +11 more
doaj   +1 more source

A nacre formation-inspired dynamic self-generating barrier for environmental deposit-resistant thermal barrier coatings

Journal of Advanced Ceramics
To address the challenge of corrosion in thermal barrier coatings (TBCs) by low-calcium-silica-ratio, impurity-containing environmental deposits (CMAS-E) in advanced aeroengines, this study, inspired by the adaptive defense mechanism of nacre formation ...
Yao-Xu Zan, Lu Huang, Wei-Zheng Gu, Peng-Shuai Yue, Lin Dong, Mei-Jun Liu, Guan-Jun Yang   +6 more
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Thermal cycling of YAG infiltration and plasma sprayed coatings as environmental barrier coating on ceramic heat shields for use in hydrogen operating gas turbines

Open Ceramics
Environmental barrier coatings (EBC) are intended to protect alumina ceramic tiles in hot water vapor conditions, enabling gas turbines to operate with higher hydrogen content or even pure hydrogen. For these operating conditions, yttrium aluminum garnet
J.C. Müller-Elmau, A. Göbel, P. Junge, J.T. Müller, T.C. Rousseau, O. Görke, C. Nikasch, S. Kiliani   +7 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Spectral emittance measurements for ytterbium disilicate‐based environmental barrier coatings

International Journal of Ceramic Engineering & Science
The spectral reflectance and transmittance of two free‐standing ytterbium disilicate (Yb2Si2O7)—based environmental barrier coatings (EBCs) were measured from 25°C up to 1270°C.
Michael J. Presby, Sylvie F. Crowell, Jeffrey I. Eldridge, James R. Markham   +3 more
doaj   +1 more source

Performance of air plasma sprayed Cr3C2–25NiCr and NiCrMoNb coated X8CrNiMoVNb16–13 alloy subjected to high temperature corrosion environment

Materials Research Express, 2022
Thermal barrier coating plays a vital role in protecting materials’ surfaces from high-temperature environment conditions. This work compares the demeanour of uncoated and air plasma sprayed Cr _3 C _2 –25NiCr and NiCrMoNb coated X8CrNiMoVNb16–13 ...
P Subramani, M Sathishkumar, M Manikandan, Senthil Kumaran Selvaraj, V Sreenivasulu, N Arivazhagan, S Rajkumar   +6 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source