Fabrication of metallic anisotropic particles

Download

index.pdf

Date

2018-09-23

Author

Çınar, Simge
Ulucan, Tolga Han

Metadata

Show full item record

Item Usage Stats

198
views

40
downloads

Having the capability to fabricate programmable and advanced materials with designed properties and new functions has been of significant attention for the broad scientific community. One of the recent approaches to developing such capability in nano- and micro-materials is to introduce a spatial distribution of at least two components and benefit from the multifunctionality stemmed from this anisotropy for programmability or synergetic effects. Synthesis of anisotropic metallic particles at nano- or microscale is a challenging task due to the size-dependent limitations and the complex chemistry. In this presentation, we will introduce a novel technique for fabrication of metallic anisotropic structures that is simple, robust, scalable and environmentally friendly. The topological (Scanning Electron Microscopy), chemical (Back Scattering Electron Microscopy) and crystallographic (X-Ray Crystallography) characterization of fabricated particles will be presented. The capabilities of anisotropic particles depend also on the distribution of components throughout the particle. The focused ion beam is used in scanning electron microscopy to slice off the anisotropic particle for complete characterization. The results show that the fabricated particles do not have the core-shell structure (the core of the particle is same, but the components are distributed on the shell), but it is coreless (the anisotropy is throughout the particle). To conclude, in this presentation, the novel technique for fabrication of anisotropic particles will be introduced and its capabilities will be demonstrated on the model Bi-Sn system. The findings can be elaborated on the other systems as the technique allows easy adjustments over other combinations.

URI

https://hdl.handle.net/11511/88376

Conference Name

14th Nanoscience and Nanotechnology Conference, 22 - 25 September 2018

Collections

Department of Metallurgical and Materials Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

IMPLEMENTATION OF STRONG LIGHT-MATTER INTERACTION FOR FABRICATION AND LIGHT MANAGEMENT OF THIN CRYSTAL SILICON SOLAR CELLS Zolfaghari Borra, Mona; Bek, Alpan; Ünalan, Hüsnü Emrah; Department of Micro and Nanotechnology (2021-7-29) The integration of photonic components with electrical elements on the same silicon chip may lead to the development of new technologies. One limitation is the space available on the wafer surface, which is restricted. Currently, conventional fabrication techniques produce devices only on the top thin layer of the wafer surface. As a result, new architectural designs are required. Producing functional components deep inside Si without creating damage to the surfaces is a potential technique for overcoming t...
Design of a magnetically tuned vibration absorber Nakkaş, Halit Erdem; Özgen, Gökhan Osman; Department of Mechanical Engineering (2019) In this thesis, a TVA is designed, manufactured and validated experimentally. The TVA uses eddy current effect as the damping mechanism with adjustable damping through changing distance between magnets and the conductors. In order to tune the damping level of the absorber to the desired range, magnetic analyzes are conducted and selection of conductor and magnets are made accordingly. Physical design of the TVA consists of a mass element, a spring element and a damping element. Compression helical spring is...
Fabrication of microfluidic devices for dielectrophoretic and acoustophoretic applications using high precision machining Soheila, Zenaili; Çetin, Barbaros; Özer, Mehmet Bülent; Süleyman, Büyükkoçak (2014-07-03) In this study, the fabrication of microfluidic devices for dielectrophoretic and acoustophoretic based applications with high-precision CNC machining has been presented. For both devices, molds out of stainless steel have been fabricated, and polymer molding is implemented. For dielectrophoretic device, the metal electrodes have been fabricated using high-precision machining and embedded into the device during the molding process. For acoustophoretic device, piezoelectric slides have been embedded into the ...
Design of a high precision hybrid AM machine Yılmaz, Yunus Emre; Dölen, Melik; Department of Mechanical Engineering (2019) Precision requirements in fused deposition modelling (FDM) processes have been increasing in recent years, especially after recognizing the potential of FDM process to produce complex and functional components. In order to increase precision of FDM process, 6-axis hybrid manufacturing system, which can carry out additive- and subtractive manufacturing processes in one manufacturing system platform, is designed. During design, kinematic analysis of the machine is done, axial- and angular errors are estimated...
Manufacturing of copper cold plates via metal fused filament fabrication and their characterization Bacıkoğlu, Mehmet Canberk; Yaman, Ulaş; Department of Mechanical Engineering (2023-1) Unlike traditional manufacturing methods, Additive Manufacturing (AM) is one of the most popular methods to produce parts with complex geometries using a wide range of materials. Atomic Diffusion Additive Manufacturing (ADAM) is an AM method to manufacture metal parts by using filaments which include metal powders encased in plastic binders. Various types of materials can be 3D printed with this method, including stainless steel, copper, tool steel, Inconel, and titanium. In this study, ADAM method is used ...

Citation Formats

S. Çınar and T. H. Ulucan, “Fabrication of metallic anisotropic particles,” İzmir, Turkey, 2018, p. 40, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/88376.