Results 251 to 260 of about 42,379 (316)

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

open access: yesAdvanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang   +3 more
wiley   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May   +9 more
wiley   +1 more source

A further study on fatigue crack initiation life — mechanical model for fatigue crack initiation

International Journal of Fatigue, 1986
Abstract In the present study, a new formula for the fatigue crack initation life is developed based on recent progress in the study of fatigue damage and crack initiation, and is substantiated experimentally. The new formula reveals a correlation between the fatigue crack initiation life, the notched element geometry, the cyclic loading condition ...
Zheng Xiulin
exaly   +2 more sources

Crack initiation in polystyrene

Journal of Materials Science, 1973
A technique is described for demonstrating the flaws at which fracture initiates in injection-moulded polystyrene. The primary flaws are shown to be the same features as occur at the foci of secondary fractures in this polymer.
B. L. Earl, R. J. Loneragan, M. Crook
openaire   +1 more source

The initiation of wear cracks

Wear, 1981
Abstract The relevance of fracture mechanics to wear is briefly discussed and the stress-raising effect of second-phase particles is cited as a possible mechanism for crack initiation. It is assumed that any inclusions present are rigid and elliptical, so that they may be made to approximate several morphologies.
D.A. Hills, D.W. Ashelby
openaire   +1 more source

Crack kinking from an initially closed crack

International Journal of Solids and Structures, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leblond, Jean-Baptiste, Frelat, Joël
openaire   +2 more sources

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