Results 111 to 120 of about 32,253 (225)

Radiation damage in helium ion–irradiated reduced activation ferritic/martensitic steel

Nuclear Engineering and Technology, 2018
Nanocrystalline reduced activation ferritic/martensitic (RAFM) steel samples were prepared using surface mechanical attrition treatment (SMAT). Un-SMATed and SMATed reduced activation ferritic/martensitic samples were irradiated by helium ions at 200°C ...
L.D. Xia, W.B. Liu, H.P. Liu, J.H. Zhang, H. Chen, Z.G. Yang, C. Zhang   +6 more
doaj   +1 more source

Numerical Prediction of Deformation‐Induced Martensitic Transformation in Cold‐Sprayed Austenitic Stainless Steel

steel research international, Volume 97, Issue 4, Page 2241-2249, April 2026.
Cold spray deposition of stainless steel (grade: SS304) is evaluated for marine applications, with emphasis on martensitic transformation during impact. Analytical modeling, simulations, and experiments reveal that helium‐assisted spraying of fine powders promotes cooling below the martensitic start temperature, enabling up to ≈40% austenite to ...
Cal Vin Wong, K. R. Ramkumar, Sougata Roy, Victor K. Champagne, John J. Lee   +4 more
wiley   +1 more source

Deciphering the “Missing Xenon Paradox” in Celestial Bodies: A Multifaceted Perspective Toward Demystifying This Enigma

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both, Avradip Ghosh, Chin Li Cheung   +2 more
wiley   +1 more source

Boron-10 stimulated helium production and accelerated radiation displacements for rapid development of fusion structural materials

Journal of Materiomics
Boron doping, combined with neutron capture in fission reactors, has been used to simulate the helium effect on fusion structural materials. However, inhomogeneous helium bubble formation was often observed due to boron segregation to grain boundaries ...
Yunsong Jung, Ju Li
doaj   +1 more source

Metal Brazing‐Free Ceramic‐to‐Ceramic Hermetic Sealing for All‐Ceramic Active Implantable Devices

Journal of the American Ceramic Society, Volume 109, Issue 4, April 2026.
ABSTRACT Hermetic sealing of engineering ceramic‐based active implantable medical devices (AIMDs) is a crucial part of their fabrication and significantly influences the reliability and lifetime of the devices once implanted within a biological environment.
Shaikh Nayeem Faisal, Sebastian Parsons, Rebecca Kiss, Peter Yeh, Orsolya Kekesi, Matthew Kolibac, Gregg Suaning   +6 more
wiley   +1 more source

Quantifying helium-bubble swelling in RAFM steels using TEM and the surface-step method

Nuclear Materials and Energy
In fusion-relevant environments where transmutation helium accumulates, He bubble formation can become a critical damage mechanism in reduced-activation ferritic/martensitic (RAFM) steels because it drives swelling and can degrade mechanical performance.
Sangeun Kim, Hyung-Ha Jin, Chang-hoon Lee, Sanghoon Noh, Sungjin Kwon, Dong Won Lee, Chansun Shin   +6 more
doaj   +1 more source

Reducing bubbles in glass coatings improves electrical breakdown strength [PDF]

, 1968
Helium reduces bubbles in glass coatings of accelerator grids for ion thrustors. Fusing the coating in a helium atmosphere creates helium bubbles in the glass.
Banks, B.
core   +1 more source

Unravelling friction anisotropy by atomic force microscopy

Journal of Microscopy, Volume 302, Issue 1, Page 111-144, April 2026.
Abstract Friction plays a crucial role in both natural phenomena, from the flow of blood cells to earthquakes, and technological applications, from car engines to wind turbines. One of the most fundamental aspects of tribology is friction anisotropy, that is, the dependence of the friction force vector on the direction of sliding.
Clodomiro Cafolla, Marcello Campione
wiley   +1 more source

Compressible Flow Exfoliation of Two‐Dimensional Nanomaterials: Insights Into Layer Separation Informed by Gas Dynamics

Advanced Engineering Materials, Volume 28, Issue 6, 18 March 2026.
This study elucidates the mechanism of compressible flow exfoliation for producing 2D hexagonal boron nitride (h‐BN). Fluid dynamics analysis reveals that acceleration‐driven aerodynamic shear forces, rather than shock waves alone, drive effective layer separation.
Md Farhadul Islam, Saeed Arabha, Ray Hixon, Reza Rizvi   +3 more
wiley   +1 more source

Comparative study of helium bubbles, microstructure, and mechanical properties in the white bright band of SA508-3/52(M) dissimilar metal weld joints

Journal of Materials Research and Technology
After metallographic etching, unetched white bright bands (WBB) are evident in the SA508-3/52(M) dissimilar metal weld joints. The WBBs in both joint without a buttering layer (JWOBL) and joint with a buttering layer (JWBL) are composed of austenite ...
Xusheng Qian, Chuanzong Li, Ziyu Tian, Kejin Zhang, Hao Lu   +4 more
doaj   +1 more source