Results 21 to 30 of about 1,811,461 (277)

The effect of thermomechanical processing on the piezoelectric and electrical conductivity of PLA/2.5%MWCNT composite

open access: yesJournal of Materials Research and Technology, 2023
The electrical properties of polymer materials, such as electrical conductivity and piezoelectricity, are significantly influenced by the ratio of amorphous to crystalline regions. Additionally, the alignment of added particles and formed crystallites is
Sahar Shahparvar   +4 more
doaj   +1 more source

On the cyclic hardening/softening behavior of a rare earth-containing magnesium alloy during strain-controlled fatigue

open access: yesJournal of Materials Research and Technology, 2022
The origin of cyclic hardening under low strain amplitude (with N = 25284 cycles to failure) followed by pseudo-plateau response under high strain amplitude (with N = 2671 cycles to failure) during fully reversal (R = −1) strain-controlled pull–push ...
A. Jeldi   +4 more
doaj   +1 more source

Researches on Application of GPS to Earthquake Monitoring and Prediction [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2007
The earliest researches on application of GPS to earthquake monitoring and prediction in China began in 1980s, and it was limited to learn some relative technology from other countries and do some test with a few of equipments.
Wanju BO   +3 more
doaj  

Flow Behavior and Mechanical Properties of Multi-Pass Thermomechanically Processed 7075 Al-Alloy

open access: yesMetals, 2023
Research on multi-pass hot processing of 7075 Al-alloy was rarely discussed. This study aims to design and evaluate different thermomechanical processing strategies (TMPS) to produce 3 mm-thick sheets of 7075 Al-alloy. A physical simulation was performed
Eman El-Shenawy   +4 more
doaj   +1 more source

The Cracking Mechanism of Ferritic-Austenitic Cast Steel

open access: yesArchives of Foundry Engineering, 2016
In the high-alloy, ferritic - austenitic (duplex) stainless steels high tendency to cracking, mainly hot-is induced by micro segregation processes and change of crystallization mechanism in its final stage.
Stradomski G.
doaj   +1 more source

Dynamic strain aging and twin formation during warm deformation of a novel medium-entropy lightweight steel

open access: yesJournal of Materials Research and Technology, 2022
The present study deals with the extraordinary twin formation during compressive deformation of a Fe-37.55Mn-8.5Al-0.6C (wt.%) low-density steel at warm temperature regime (200–600 °C). Despite the conventional opinion regarding the restrictive effect of
Rezvan Khani   +4 more
doaj   +1 more source

Versal deformation of the Lie algebra $L_2$ [PDF]

open access: yes, 1999
We investigate deformations of the infinite dimensional vector field Lie algebra spanned by the fields $e_i = z^{i+1}d/dz$, where $i \ge 2 $. The goal is to describe the base of a ``versal'' deformation; such a versal deformation induces all the other ...
Fialowski, A., Post, G.F.
core   +8 more sources

Bioinspired Additive Manufacturing of Hierarchical Materials: From Biostructures to Functions

open access: yesResearch, 2023
Throughout billions of years, biological systems have evolved sophisticated, multiscale hierarchical structures to adapt to changing environments. Biomaterials are synthesized under mild conditions through a bottom-up self-assembly process, utilizing ...
Jingjiang Wei   +6 more
doaj   +1 more source

Convergence of some horocyclic deformations to the Gardiner-Masur boundary [PDF]

open access: yes, 2015
We introduce a deformation of Riemann surfaces and we are interested in the convergence of this deformation to a point of the Gardiner-masur boundary of Teichmueller space.
Alberge, Vincent
core   +3 more sources

Pneumatic Experimental Design for Strain Rate Sensitive Forming Limit Evaluation of 7075 Aluminum Alloy Sheets under Biaxial Stretching Modes at Elevated Temperature

open access: yesMetals, 2020
A pneumatic experimental design to evaluate strain rate sensitive biaxial stretching forming limits for 7075 aluminum alloy sheets was attempted with the finite element method.
Jong-Hwa Hong   +3 more
doaj   +1 more source

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