Results 111 to 120 of about 15,979 (310)

Nondestructive Testing of Welded Composite Metal Foams

open access: yesAdvanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva   +2 more
wiley   +1 more source

Cost-Effective Radiation Hardening Technique for Combinational Logic [PDF]

open access: yes, 2008
— A radiation hardening technique for combinational logic circuits is described. The key idea is to exploit the asymmetric logical masking probabilities of gates, hardening gates that have the lowest logical masking probability to achieve cost-effective ...

core  

Influence of Surface Finish on the Tribological Performance of AlTiBN Coatings Deposited on Forming Tools

open access: yesAdvanced Engineering Materials, EarlyView.
Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver   +9 more
wiley   +1 more source

Computational and experimental determination of laser hardening zones and tribotechnical characteristics of tool steels [PDF]

open access: yesE3S Web of Conferences
The paper presents the results of metallographic studies and tribotechnical tests of samples of Cr12V1 steel with laser hardening. The influence of the processing modes of the edge of the samples on the geometric parameters of the quenching zones and ...
Biryukov Vladimir
doaj   +1 more source

Radiation hardening of components and systems for nuclear rocket vehicle applications [PDF]

open access: yes, 1972
The results of the analysis of the S-2 and S-4B components, although incomplete, indicate that many Saturn 5 components and subsystems, e.g., pumps, valves, etc., can be radiation hardened to meet NRV requirements by material substitution and minor ...
Greenhow, W. A., Cheever, P. R.
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Analysis of Laser Hardening Possibility of Teeth of Loaded Cylindrical Gears Made of Structural Steels

open access: yesМеханика машин, механизмов и материалов
The relevance is shown for replacing expensive alloy steels, of which loaded cylindrical gears are currently made, with cheaper (up to 2.5 times) structural steels, improving the processes of hardening the teeth of loaded cylindrical gears and reducing ...
Mark M. Kane   +2 more
doaj   +1 more source

Single-Event Effects and Radiation Hardening in Digital Circuits [PDF]

open access: yes
Single-event effects (SEEs) are a group of phenomena manifesting for the most part, in integrated circuits (ICs). SEEs are disruptions in the operation of circuits, that are caused by ionizing radiation.
Kelavuori, Joonas
core  

Single Event Radiation Hardening of Sub-Sampling Phase-Locked Loops [PDF]

open access: yes, 2019
The phase-locked loop (PLL) is a fundamental building block of modern microelectronics. Due to its utility and adaptability this circuit serves countless functions throughout a wide range of systems.
Richards, Ellis William
core  

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi   +3 more
wiley   +1 more source

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