Results 81 to 90 of about 157,681 (294)

High temperature reactive ion etching of iridium thin films with aluminum mask in CF4/O2/Ar plasma

AIP Advances, 2016
Reactive ion etching (RIE) technology for iridium with CF4/O2/Ar gas mixtures and aluminum mask at high temperatures up to 350 °C was developed. The influence of various process parameters such as gas mixing ratio and substrate temperature on the etch ...
Chia-Pin Yeh, Marco Lisker, Bodo Kalkofen, Edmund P. Burte   +3 more
doaj   +1 more source

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer, Lukas Spano, Sebastian Pohl, Carolin Körner, Matthias Markl   +4 more
wiley   +1 more source

Numerical simulation of plasma etching process with AAO mask based on PIC/MCC model

ChemPhysMater
This paper presents a Particle-in-Cell Monte Carlo Collision (PIC/MCC) numerical simulation to investigate plasma etching processes utilizing an anodic aluminum oxide (AAO) mask.
Zeping Li, Ran An, Mingyan Yang, Dongjing Li, Hao Wu   +4 more
doaj   +1 more source

Superconducting properties of ultrathin Bi2Sr2CaCu2O8+x single crystals

, 2005
We use Ar-ion milling to thin Bi2212 single crystals down to a few nanometers or one-to-two (CuO2)2 layers. With decreasing the thickness, superconducting transition temperature gradually decreases to zero and the in-plane resistivity increases to large ...
A. Yurgens, B. Liang, C. T. Lin, D. Winkler, Ginsberg D. M., L. X. You, Ohring M., Wang H. B., Zhu X. B.   +8 more
core   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Investigation of the physical properties of nanoscale porous silicon films

Physical Sciences and Technology, 2016
The structure and physical properties of porous silicon obtained by electrochemical etching of monocrystalline silicon with n-type conductivity in a mixture of hydrofluoric acid and ethyl alcohol were investigated.
S.M. Manakov, Ye. Sagidolda
doaj  

Preparation of high-quality pure titanium SLA surface and evaluation of its physicochemical and biological properties - in vitro experiments

BMC Oral Health
Objectives This study aimed to prepare high-quality sandblasted large-grit acid-etched surfaces of pure titanium and to evaluate their physicochemical and biological properties.
Qiqi Liu, Yujia Zhao, Junjiang Hao, Lin Qiu, Hanqi Su, Xinyu Wang, Yucheng Su   +6 more
doaj   +1 more source

Production parameters for the formation of metallic nanotubules in etched tracks

Radiation Measurements, 2003
The formation of conducting nanotubules in etched tracks is reported in literature since about a decade. However, up to now precise production recipes are scarce. For this sake we present here a systematic study on some important factors that influence the formation of metallic nanotubules.
Fink, Dietmar, Petrov, A V, Rao, V., Wilhelm, M, Demyanov, S., Szimkowiak, P, Behar, M., Alegaonkar, P S, Chadderton, Lewis   +8 more
openaire   +2 more sources

Parameter-Variable Experiments for Conductivity of Acid Etched Fractures

IOP Conference Series: Earth and Environmental Science, 2020
AbstractConductivity of acid etched fractures is the decisive factor of results of acidizing treatment. At present, tests for etched fracture conductivity are in all cases executed using fresh acid under fixed experimental conditions, which determines that the test results can only capture fracture conductivity of the near-wellbore zone.
He Chun Ming, Duan Gui Fu, Cai Jun, Wang Xiao Chao, Wu Gang   +4 more
openaire   +1 more source