Results 81 to 90 of about 2,554,621 (223)

Tailoring Radial Dopant Homogeneity in Silica‐Based Laser Active Media Using Variable SiO2 Precursors in Atmospheric Pressure Plasma‐Based Nanoparticle Synthesis

Particle &Particle Systems Characterization, Volume 43, Issue 10, October 2026.
The study compares two silica precursors, TEOS and OMCTS, for producing Yb2O3, Al2O3‐doped nanoparticle aggregates via atmospheric microwave plasma. TEOS‐based sol–gel precursors yield 20‐40 times higher dopant homogeneity in vitrified samples than OMCTS‐based emulsions. This difference is attributed to distinct evaporation behaviors and water content,
Tom Trautvetter, Hardy Baierl, Ralf Methling, Marjan Stankov, Jan Dellith, Frank Hempel, Rüdiger Foest, Lothar Wondraczek, Katrin Wondraczek   +8 more
wiley   +1 more source

Brightness enhancement limits in pulsed cladding pumped fiber Raman amplifiers

We analyze theoretically limitations on the brightness enhancement of a multimode pump beam, to be efficiently converted into a diffraction-limited Stokes beam in a cladding-pumped fiber Raman amplifier.
Nilsson, Johan, Codemard, Christophe A., Ji, Junhua   +2 more
core   +1 more source

Methodology for numerical evaluation of fracture resistance under pinch loading of spent nuclear fuel cladding containing reoriented hydrides

Nuclear Engineering and Technology
It is important to maintain cladding integrity in spent nuclear fuel management. This study proposes a numerical analysis method to evaluate the fracture resistance of irradiated zirconium alloy cladding under pinch load known to cause Mode-III failure ...
Seyeon Kim, Sanghoon Lee
doaj   +1 more source

In‐Situ Construction of Multi‐Scale Heterogeneous Structures in L‐DED IN718 Coatings via WMoTaNb Incorporation for Enhanced Strength‐Toughness Synergy

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT To improve the strength–toughness balance of IN718, and alleviate the brittleness commonly associated with refractory high‐entropy alloys, this study proposes a novel strategy to fabricate defect‐free IN718/WMoTaNb heterogeneous multiprincipal element alloy coatings via laser‐directed energy deposition.
Zhao Wang, Yinghui Zhou, Jian Chen, Rengen Ding, Wenting Shao, Shuaidan Lu, Ke Yang, Hongge Pan   +7 more
wiley   +1 more source

Elastoplastic mechanical behavior analysis of surface-coated Zircaloy-4 cladding under multi-field coupling

Nuclear Engineering and Technology
The elastoplastic mechanical behavior of Zircaloy-4 (Zr-4) cladding, coated with chromium (Cr) or FeCrAl on its surface, is explored under the coupled effects of multi-field coupling.
Xin Wang, Ze Xu, Yulan Liu, Biao Wang
doaj   +1 more source

Ultrasonic Vibration Assisted Laser Processing: A Hybrid Paradigm for Extreme Surface Enhancement

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Traditional laser processing techniques offer many advantages, but they often encounter limitations such as heat‐affected zones, recast layers, residual tensile stresses, and poor surface finish. The integration of ultrasonic vibration (UV) presents a promising hybrid approach to overcome these challenges by introducing beneficial effects like
Aziz Ul Hassan Mohsan, Xuedao Shu, Hu Zong, Su Zhao, Khamis Essa, Di Tie, Changyong Chen   +6 more
wiley   +1 more source

Predicting Nepheline Formation in Nuclear Waste Glasses Using Machine Learning With Uncertainty Quantification

International Journal of Applied Glass Science, Volume 17, Issue 4, October 2026.
ABSTRACT The vitrification of high‐level waste (HLW) into borosilicate glass is a cornerstone of nuclear waste management, yet one of the key challenges in glass formulation for high‐aluminum‐containing waste streams is the precipitation of nepheline during the canister cooling stage.
Mayra Diaz‐Acevedo, Chloe E. Curry, Xiaonan Lu, Saehwa Chong, Sarah I. Allec, John D. Vienna   +5 more
wiley   +1 more source

Finite element modelling of pellet-clad interaction during operational transients [PDF]

, 2015
A finite element model of pellet-clad interaction in advanced gas cooled reactor fuel experiencing extended reduced power operations is presented. The model considers a 1/8th segment of fuel and overlaying cladding bonded to it.
Ball, JA, Wenman, MR, Haynes, T, Shea, JH   +3 more
core  

ZIRFLEX DISSOLUTION OF THE ANNULAR CLADDING OF SIMULATED POWER FUEL ELEMENTS [PDF]

, 1959
A study was conducted to compare the estimated dissolution rate of Zircaloy-2 clad annular fuel elements on the fully expesed metal with that in the annuli. Results indicate that decladding of these elements should proceed uniformly on all surfaces. Heat balance data from the study are also reported. (J.R.D.)
openaire   +2 more sources

Pneumatic Cladding Element for Saddle-Shaped Cable Roof

Pneumatic cladding element for the long span saddle-shaped cable roofs was considered. The pneumatic cladding element is formed by the generally woven by the basket weave fabric from the Vectra (LCP) yarns, which is covered by the PoliTetraFluoroEthylene
Serdjuks, Dmitrijs, Rocēns, Kārlis
core