نتایج جستجو برای: thin film membranes
تعداد نتایج: 277036 فیلتر نتایج به سال:
The Membrane Deflection Experiment was used to examine size effects on freestanding thin film gold membranes. It is the first micro-scale testing scheme where the loading procedure is straightforward and accomplished in a highly sensitive manner while preserving the independent measurement of stress and strain. Stress-strain curves were obtained on films 0.3, 0.5 and 1.0 μm thick including memb...
A thin Pd-Ag alloy film, which will be applied to fabricate membranes for hydrogen separation, was successfully deposited using an electroplating technique. The plating solution for the formation of a thin Ag-rich Ag-Pd film for electric contact consisted of PdCl2, AgNO3, HBr, and HNO2. An improvement of the electrolytic bath was achieved by a pH control, which was kept constant at 6.6 and by t...
Ionic liquid [Bmim][BF 4 ] and metal organic framework ZIF-8 ZIF-94 nanoparticles were incorporated into polymer Pebax® Renew® 30R51 to obtain highly efficient thin-film nanocomposite membranes, ca. 300 nm thick.
There has been growing interest to develop a reliable and repeatable method for investigating the mechanical properties of thin films and MEMS materials. In this study, the mechanical response of suspended thin film Al membranes are examined by the Membrane Deflection Experiment (MDE) and nanoindentation. The MDE tests were conducted at temperatures of 2, 27, and 60°C in order to ascertain diff...
Two problems of technological importance for microelectromechanical systems ~MEMS! and microelectronics industry are addressed: fatigue of thin films and nanoscale film cracking. A device is described that can ~1! conduct biaxial fatigue tests on thin films and ~2! be utilized to study fracture patterns in nanoscale coatings under biaxial stress state. Thin-film specimens, in the form of circul...
The paper presents the design, manufacturing and characterization of 0-level packaged dual SAW pressure temperature sensors developed on GaN/Si/Mo thin membranes. Molybdenum film was deposited backside membrane, to support a higher pressure.
In recent years, aquaporin biomimetic membranes (ABMs) for water separation have gained considerable interest. Although the first ABMs are commercially available, there are still many challenges associated with further ABM development. Here, we discuss the interplay of the main components of ABMs: aquaporin proteins (AQPs), block copolymers for AQP reconstitution, and polymer-based supporting s...
Rapid population growth and the associated rise in industrialization food production have resulted a tremendously increased demand for clean water.
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