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In this work, a novel method for producing ultrafine tantalum and hafnium carbide fibers using the ForcespinningTM technique via a nonhalide-based sol-gel process was investigated.
This article overviews tantalum's properties and associated processing concerns. Tantalum is a refractory and reactive metal that is ductile and easily worked, although it is somewhat …
DOI: 10.1016/J.IJRMHM.2014.09.012 Corpus ID: 137276979; Fabrication and mechanical properties of powder metallurgy tantalum prepared by hot isostatic pressing @article{Kim2015FabricationAM, title={Fabrication and mechanical properties of powder metallurgy tantalum prepared by hot isostatic pressing}, author={Youngmoo Kim and Eun-Pyo …
Vacuum annealing has bean used to routinely manufacture tantalum nitride resistor networks with temperature coefficients in the range of ±50 ppm/°oC. The as-sputtered temperature coefficient of resistance (TCR) of tantalum nitride films with nitrogen content set for optimum stability is approximately --130 ppm. Although near zero TCR's can be obtained by reducing …
Tantalum nitride thin films are grown on silicon wafers using a mixture of Ar/N2 using DC magnetron sputtering. The influence of nitrogen concentration on various features of tantalum nitride thin films is systematically studied. X-ray diffraction results show characteristic peaks of FCC tantalum nitride with crystallite size gradually increasing upon an augmentation …
An alternate method is to plate the tantalum with a flash of copper, then braze with the desired brazing material. Brazing of Ag-Mn, Au-Ni, Ta-Ti-V and other compositions may be used. Resistance Welding: Tantalum sheets are …
Overview Tantalum-Processing, Properties and Applications. Overview. essing, Properties and ApplicationsW.Kock and P. PaschenTant. lum-the Ear 49th h's most thanides and uranium …
1. Introduction. Owing to their high strength, high ductility, resistance to corrosion and biocompatibility behaviour, refractory metals becomes widely used as biomaterials for the fabrication of medical devices, orthopaedic or load-bearing implants [1].Tantalum (Ta) was first discovered by Anders Gustaf Ekeberg of Sweden in 1802 and its clinical application as …
the chemical processing industry (CPI). Other coatings applications have been used in medical devices as well. Tantalum can be machined using standard fabrication techniques such as …
High-temperature tantalum tungsten alloy photonic crystals: Stability, optical properties, and fabrication Journal Article · Mon Sep 16 00:00:00 EDT 2013 · Applied Physics Letters
The metal can also be produced by the carbon or aluminium reduction of the oxide or the hydrogen or alkaline earth reduction of tantalum chloride. The choice of process is based on …
ECKERT J. Hydrometallurgical processing of tantalum and niobium compounds [C]//Proceedings of International Symposium on Tantalum and Niobium. ... Journal of Alloys …
Accelerometers in mobile phones, microprocessors in laptops, and gyroscopes that balance drones each rely on microelectromechanical systems, or MEMS for short. Within these small systems are even ...
Fabrication, bacteriostasis and osteointegration properties researches of the additively-manufactured porous tantalum scaffolds loading vancomycin. ... Direct laser processing of a tantalum coating on titanium for bone replacement structures. Acta Biomater., 6 (2010), pp. 2329-2334. View PDF View article View in Scopus Google Scholar
Section snippets Fabrication and characterization of porous Ta. Ta metal powder (Grandview Materials Inc., Columbus, OH) with 99.5% purity and particles size between 45 and 75. μm was used.. Porous Ta samples 7.5 mm in diameter and 10.5 mm in height were deposited on a substrate of 3 mm thick rolled, commercially pure (CP) Ti plates using LENS-750 …
Here, we present a new material platform based on tantalum pentoxide (Ta2O5) for implementing high-performance dielectric metasurface optics over the ultraviolet and visible spectral region.
This feature allows the fabrication of binary tantalum-hafnium carbide (Ta,Hf)C [26, 41, 42] as well as carbonitride HfCN phases [13, 43, 44]. In the Ta-N system, the nitride phase at room temperature has a hexagonal structure, which makes the formation of a single-phase solid solution in the TaC-TaN pseudo-binary system difficult using the ...
Tantalum— the Earth's 49th most abundant element— is frequently produced as a by-product of tin smelting. The metal is also extracted from concentrates by reduction with sodium or fused-salt electrolysis; tantalum carbide is produced by carburization of Ta2O5 or tantalum hydride. Sintering, electric-arc melting and electron-beam melting are used to refine and purify raw …
Introduction. Hip replacement is a common surgical procedure with a high success rate. More than one million total hip replacement surgeries are performed worldwide each year, and this number continues to grow each year [].Total hip replacement can effectively relieve pain and improve hip function in patients with advanced arthritis of the hip and significantly improve …
Fabrication of porous Ta structures with total porosities between 27% and 55% has been successfully demonstrated using LENS™. The experimental results show that this process has the potential to create modular all-Ta implants with tailored porosity. ... Direct laser processing of tantalum coating on titanium for bone replacement structures ...
This paper will discuss the processing, design and fabrication, and handling of tantalum and tantalum alloys. Since it is a reactive metal, certain precautions are necessary when fabricating tantalum components. Additionally, some failure analyses of tantalum components will be presented to demonstrate some issues surrounding the use of tantalum.
Tantalum is a refractory blue-grey metal originally discovered in 1802 by Anders Ekeburg from Sweden. It was first commercially used in dental tools and incandescent light bulb filaments due to its chemical inertness and …
Chemical Processing: Reactor vessels, heat exchangers, and other equipment exposed to corrosive environments. ... Fabrication: Tantalum 10 Tungsten Sheet can be fabricated using conventional techniques such as machining, welding, and forming. However, its high melting point and hardness may require specialized tools and processes. Surface Finish:
The authors present highly selective emitters based on two-dimensional tantalum (Ta) photonic crystals, fabricated on 2 in. polycrystalline Ta substrates, for high-temperature applications, e.g., thermophotovoltaic energy conversion.
Tantec Group. As the leading company in processing and treatment of Tantalum, TANTEC sets the standard for quality.Each component… More
This resulted in solubilization yields of over 95% for Nb and around 92% for Ta in sulfuric acid solution 3 molar. Extraction of tantalum and niobium using octan-2-ol yielded over 95% …
Both commercially pure titanium and tantalum powders are produced by gas atomization. The commercially pure titanium powder (Grade 2 ASTM B348, LPW Technology Ltd, United Kingdom) is spherical in shape and has particle size with average size of 43.5 μm.The tantalum powder (Singapore Demand Planner Ltd, Singapore) is irregular in shape and has …
Low-loss α-tantalum coplanar waveguide resonators on silicon wafers: fabrication, characterization and surface modification, Daniel Pérez Lozano, Massimo Mongillo, Xiaoyu Piao, Sebastien Couet, Danny Wan, Yann Canvel, A. M. Vadiraj, Tsvetan Ivanov, Jeroen Verjauw, Rohith Acharya, Jacques Van Damme, Mohiyaddin A. Fahd, Julien Jussot, Pallavi Puttarame …
EMI offer CNC milling and machining using an extensive range of materials including Tantalum Fabrication.. Precision components are manufactured in Tantalum from our main central CNC milling and machining Hub offering faster, precise and high quality finished products.. Tantalum is a highly corrosion-resistant transition metal that is uncommon, hard, blue-gray, and glossy.
Metal fabrication services for molybdenum, tungsten, rhenium, niobium and tantalum. Capable of fabricating components up to 0.25 in. thickness with thermal conductivity ranging from 0.40 to 1.70 W/cm degrees C. Applications include crucibles, thermal engines, combustion chambers, hot gas path components, catheter bands and pacemaker tags.
