Results 81 to 90 of about 547,876 (336)

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

Thermometry of Silicon Nanoparticles

open access: yes, 2017
Current thermometry techniques lack the spatial resolution required to see the temperature gradients in typical, highly-scaled modern transistors. As a step toward addressing this problem, we have measured the temperature dependence of the volume plasmon
Mecklenburg, Matthew   +2 more
core   +1 more source

Development and Application of Ultrafast Transmission Electron Microscope Based on Schottky Field Emission [PDF]

open access: bronze, 2020
Jianqi Li   +8 more
openalex   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

open access: yesAdvanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov   +4 more
wiley   +1 more source

Increase of the mean inner Coulomb potential in Au clusters induced by surface tension and its implication for electron scattering

open access: yes, 2007
Electron holography in a transmission electron microscope was applied to measure the phase shift induced by Au clusters as a function of the cluster size. Large phase shifts Df observed for small Au clusters cannot be described by the well-known equation
A. Rosenauer   +17 more
core   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb   +6 more
wiley   +1 more source

Comparing The Different Fixatives For Examination of Liver Tissue Ultrastructure

open access: yesAnkara Üniversitesi Tıp Fakültesi Mecmuası, 2011
Aim: It is important to examine liver tissue ultrastructure in pathologies of infections and storage diseases. The aim of this study was to assess the effects and advantages of various fixatives on liver ultrastructure and to minimize the methodological ...
Sibel Kılıçoğlu, Esra Erdemli
doaj   +1 more source

Transmission Electron Microscopy of XDR Mycobacterium tuberculosis Isolates Grown on High Dose of Ofloxacin

open access: yesScientia Pharmaceutica, 2017
The aim of the study was to investigate behavior of resistant Mycobacterium tuberculosis (MTB) isolates under a high dose of ofloxacin and its morphological changes.
Mohammad Arjomandzadegan   +6 more
doaj   +1 more source

Longitudinal spin-relaxation in nitrogen-vacancy centers in electron irradiated diamond

open access: yes, 2015
We present systematic measurements of longitudinal relaxation rates ($1/T_1$) of spin polarization in the ground state of the nitrogen-vacancy (NV$^-$) color center in synthetic diamond as a function of NV$^-$ concentration and magnetic field $B$. NV$^-$
Auzinsh, M.   +9 more
core   +1 more source

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