method for manufacturing rhenium
CN1951610A - Method for manufacturing rhenium-containing … - Method for making a rhenium rocket nozzle - patents.justia
KR-101892954-B1 chemical patent summary.CVD rhenium to 943 MPa for rolled sheet. A similar spread was also obtained for material tested at 1088 K and 1644 K. The wide variance observed with the different materials indicated that the rhenium manufacturing process, material composition and prior handling strongly dictated its properties. In addition to tensile properties, CVD, pressed ...
Method for manufacturing rhenium-containing alloy powder, rhenium … - CN100489131C - Method for manufacturing difficult-to …
A method for manufacturing a rhenium-tungsten filament is also disclosed. The method comprises the following steps. An AKS doped tungsten-rhenium alloy powder is prepared with a rhenium content of 0.2-0.4% by weight. The alloy powder is pressed and presintered, and thereafter sintered with direct current.A method for making an article from rhenium and in particular a rocket nozzle. First a molybdenum mandrel is formed with a portion having the desired shape of the nozzle. A layer of rhenium is deposited over the nozzle portion, and then rhenium wire is wrapped around this rhenium layer. A second rhenium layer or a layer of ruthenium is then deposited over the …
Method for manufacturing rhenium-containing alloy powder, … - Rhenium-carbon composite and manufacturing method for the …
Method of manufacturing rhenium alloy emission filaments . United States Patent 8226449 . Abstract: A new Rhenium alloy usable for improving the performance of emission filaments used in mass spectrometers or other similar scientific instruments, which is made by adding low level concentrations of Yttrium Oxide to Rhenium of less than 10% ...US-7503959-B2 chemical patent summary.
Rapid manufacturing of rhenium components using EB‐PVD - Tungsten and rhenium manufacturing process | Firmetal Co., Ltd.
A new Rhenium alloy usable for improving the performance of emission filaments used in mass spectrometers or other similar scientific instruments, ... Organic light-emitting diode display and method of manufacturing the same: June, 2007: Heo: 20080081531: LED system and method: April, 2008: Duong et al.Method for manufacturing rhenium-containing alloy powder, rhenium-containing alloy powder, and conductor paste . Oct 16, 2006. Metal particles that can be alloyed with rhenium are dispersed as a main component in a gas phase, a rhenium oxide vapor is made to be present around these particles, the rhenium oxide is reduced, and the rhenium ...
DARPA: SBIR Opportunity: Additive Manufacturing of … - Tungsten-rhenium filament and method for producing same
A method for manufacturing a rhenium-tungsten filament is also disclosed. The method comprises the following steps. An AKS doped tungsten-rhenium alloy powder is prepared with a rhenium content of 0.05-0.19% by weight, and a potassium content between 80-110 ppm. The alloy powder is pressed and presintered, and thereafter sintered with direct ...Purpose The purpose of this paper is to provide insights for understanding the relationship between rapid manufacturing process for rhenium components in jet nozzle fabrication using electron beam-physical vapor deposition (EB-PVD). Specifically, to develop a methodology to characterize and improve this new process through motion planning for ...
Rhenium Market New Investments Expected to Boost the … - Rapid manufacturing of rhenium components using EB-PVD
Ultimately, the DARPA project aims to cement rhenium as a viable additive manufacturing metal, allowing the material to be utilized for a variety of high-temperature propulsion and hypersonics ...Tungsten and rhenium manufacturing process Firmetal, 11:37:00 PM. There are two ways to make tungsten-rhenium alloy: powder metallurgy and smelting. Powder metallurgy is commonly used in practical production. The powder metallurgy process for the production of tungsten-rhenium alloy is:
CN111097916B - Preparation method of superfine high-purity rhenium … - Rhenium Material Properties
Purpose – The purpose of this paper is to provide insights for understanding the relationship between rapid manufacturing process for rhenium components in jet nozzle fabrication using electron beam‐physical vapor deposition (EB‐PVD). Specifically, to develop a methodology to characterize and improve this new process through motion planning for maintaining uniformity …TW-I306790-B chemical patent summary.
DARPA-funded Elementum aims to 3D print rhenium metal for … - Method of Manufacturing Rhenium Alloy Emission Filaments
In particular, the multilayer ceramic electronic components internal electrode rhenium-containing alloy powder that can be preferably used in the conductive paste for the formation of the production method and the alloy contains rhenium obtained by the above process the powder, and contains the alloy powder, the interlayer peeling or cracks etc. without causing defects in …Metal particles that can be alloyed with rhenium are dispersed as a main component in a gas phase, a rhenium oxide vapor is made to be present around these particles, the rhenium oxide is reduced, andthe rhenium precipitated on the surface of the main component metal particles as a result of this reduction is diffused under a high temperature into the main component metal …
Method for manufacturing difficult-to-form pure rhenium sheet … - Rhenium-Production,Technology,Properties, Applications, Patent ...
US-8226449-B2 chemical patent summary.Metal particles that can be alloyed with rhenium are dispersed as a main component in a gas phase, a rhenium oxide vapor is made to be prese
Method for manufacturing rhenium-containing alloy … - CN100586615C - Method for manufacturing rhenium …
6. The method of claim 1 further comprising between step (a) and (b) the step of applying an oxidation barrier coating over said portion. 7. The method of claim 1 wherein said mandrel is a molybdenum. 8. A rhenium article made in accordance with the method of claim 1. 9. The method of claim 1 wherein in step (g) an acid is used. 10.The properties of rhenium, problems associated with existing methods of rhenium fabrication, the EB-PVD process and its application in fabricating plate, coating graphite balls and tubes were also ...
Method of manufacturing rhenium alloy emission filaments - Elementum 3D: DARPA funding to develop printing for rhenium
A new Rhenium alloy usable for improving the performance of emission filaments used in mass spectrometers or other similar scientific instru... Toggle navigation. ... Method of Manufacturing Rhenium Alloy Emission Filaments. 8226449 - 13199136 - USPTO Application Aug 19, 2011 - Publication Jul 24, 2012A new Rhenium alloy usable for improving the performance of emission filaments used in mass spectrometers or other similar scientific instruments, which is made by adding low level concentrations of Yttrium Oxide to Rhenium of less than 10%. This new alloy has demonstrated superior performance characteristics compared to pure Rhenium for this purpose.