آخرین محصولات
CN105628235A
The invention discloses a method for manufacturing a high-performance tungsten-rhenium (W-Re) thermocouple, and specifically relates to a high-temperature double-sealing electric vacuum method. The method is characterized in that the sealing process of the inner and outer porcelain tubes of the thermocouple is carried out under high …
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SG131892A1
Method for manufacturing rhenium-containing alloy powder, rhenium- containing alloy powder, and conductor paste Info ... manufacturing conductor paste Prior art date Application number SG200607305-0A Inventor Yuji Akimoto Kazuro Nagashima Masayuki Maekawa Hidenori Ieda
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Selective Extraction of Ni from Superalloy Scraps by Molten Mg …
Ni-based superalloy is the core material for manufacturing hot-end parts of aerospace engines and large power equipment, which contains a large amount of nickel, cobalt, and rare elements such as molybdenum, rhenium, tungsten, and hafnium . A large amount of alloy scraps is generated during the processing and use of nickel-based …
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Rhenium Material Properties
This paper presents the material properties of rhenium in manufacturing forms that were. considered prime candidates for thrust chamber development. Reproducible data, …
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Method for making a rhenium rocket nozzle
A method for making an article from rhenium and in particular a rocket nozzle. First a molybdenum mandrel (10) is formed with a portion having the desired shape of the nozzle. A layer of rhenium (18) is deposited over the nozzle portion (12), and then rhenium wire (20) is wrapped around this rhenium layer (18). A second rhenium layer (22) or a layer of …
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Method of manufacturing rhenium alloy emission filaments
The method of manufacturing of a filament usable as an emission source in a scientific instrument as defined in claim 1 wherein said step of refining of the Rhenium while simultaneously sintering the Yttria into the Rhenium to form a refined alloy of Rhenium and Yttrium oxide is performed sufficiently to provide 0.01% to 10% volume percent ...
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Near-Net Shape Powder Metallurgy Rhenium Thruster …
The method of manufacturing NNS rhenium components was developed under a NASA Phase II SBIR (Leonhardt, 2000). The NNS manufacturing method was developed to produce rhenium high …
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Elementum funded by DARPA to develop AM process for rhenium
Elementum 3D, Erie, Colorado, USA, has been awarded a Direct to Phase II SBIR contract from the US Defense Advanced Research Projects Agency (DARPA) in …
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DARPA Tasks Elementum 3D to 3D Print World's Rarest Metal
Rhenium, the last of the stable elements to be discovered, is one of the scarcest elements in the Earth's crust.It has the highest melting point of any metal aside from tungsten, as well as the ...
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US20070084309A1
US20070084309A1 US11/581,656 US58165606A US2007084309A1 US 20070084309 A1 US20070084309 A1 US 20070084309A1 US 58165606 A US58165606 A US 58165606A US 2007084309 A1 US2007084309 A
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Review of Methods for Obtaining Rhenium from Man …
A literature review on the production processes of rhenium by pyrometallurgical (roasting, smelting, distillation) and hydrometallurgical (leaching, …
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Rhenium Redefined | NASA Spinoff
Rhenium Alloys, Inc., of Elyria, Ohio, developed a new method for producing rhenium combustion chambers. While the method provides major benefits to NASA, the benefits and conveniences also extend to the private sector. ... The company makes rhenium a practical choice in manufacturing fields, including the aerospace, nuclear, and electronic ...
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US7503959B2
US7503959B2 US11/581,656 US58165606A US7503959B2 US 7503959 B2 US7503959 B2 US 7503959B2 US 58165606 A US58165606 A US 58165606A US 7503959 B2 US7503959 B2 US 7503959B2 Authority
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Development of a Near Net Shape Processing Method …
This study describes the ability to move from a parametric 3D model integrated into a manufacturing model, creating a control file which can run on the DLF …
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CN103727317A
Disclosed is a manufacturing method of a rhenium-based refractory metal hybrid tube. The tube comprises a nickel coating, a rhenium layer, a metal rhenium layer and an iridium coating. The method is characterized by comprising the steps of (1) conducing pyrolysis on a polyurethane tube with a certain thickness to obtain a carbon …
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Method of manufacturing rhenium alloy emission filaments
Method of manufacturing rhenium alloy emission filaments Aug 19, 2011 - A new Rhenium alloy usable for improving the performance of emission filaments used …
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DARPA: SBIR Opportunity: Additive Manufacturing of Rhenium …
Manufacturing methods for refractories have largely been limited to powder metallurgy, chemical vapor deposition, electrolysis, and plasma spray methods. Progress in AM of tungsten (W), niobium (Nb), molybdenum (Mo), and their related alloys have enabled disruptive advancements in the manufacturing of complex high-temperature capable …
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Method for manufacturing rhenium-containing alloy powder, rhenium
Method for manufacturing rhenium-containing alloy powder, rhenium-containing alloy powder, and conductor paste . United States Patent 7503959 . Abstract: 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 ...
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KR100835477B1
Discuss; 239000000843 powder Substances 0.000 title claims abstract description 200; 229910052702 rhenium Inorganic materials 0.000 title claims abstract description 170; WUAPFZMC
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KR101549681B1
The present invention relates to a rhenium thin film and a method for producing the rhenium thin film, comprising the steps of: (a) preparing a spray liquid by dissolving a rhenium source powder in a solvent, (b) heating the substrate to be sprayed with the spray liquid, (c) (B) forming a rhenium thin film on the substrate by applying an electric voltage …
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Rapid manufacturing of rhenium components using EB …
Most of the applications of RP primarily focus on verifications of models for fits and form inspection; on the other hand, rapid tooling (RT) concentrates on producing …
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US7736414B1
Rhenium nanoparticle mixtures and methods for making the same are provided. The rhenium nanoparticle mixture can be painted onto a surface to be coated and dried at low temperatures to form a gas-tight elemental rhenium coating. Moreover, the rhenium nanoparticle mixture can be used to join rhenium components and temperatures far …
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Near-Net Shape Powder Metallurgy Rhenium Thruster
alternate method of manufacturing rhenium thrusters by powder metallurgy method. The literature and several publications, references 1-3, indicate that powder metallurgy rhenium has excellent mechanical properties and a uniform and reproducible microstructure. The characteristics of powder metallurgy rhenium make it a more consistent product
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Rapid manufacturing of rhenium components using EB‐PVD
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).
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US20050238522A1
Method for manufacturing rhenium-containing alloy powder, rhenium-containing alloy powder, and conductor paste WO2009079282A1 (en) * : : Icon Medical Corp. A method for forming a tubular medical device US20100277051A1 (en) * : : Scientific Instrument Services, Inc. ...
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US7503959B2
Method for manufacturing rhenium-containing alloy powder, rhenium-containing alloy powder, and conductor paste Download PDF Info ... rhenium particles nickel powder metal Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation ...
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Evaluating Molybdenum-Rhenium Alloys Through …
This work demonstrates the use of laser powder bed fusion to produce several Mo-Re alloys by additively manufacturing mechanically mixed pure elemental powders. …
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Plus Therapeutics Announces Two Significant Milestones
Under the MSA, IsoTherapeutics will develop a synthesis process and in-process manufacturing controls, test method development and validation, stability studies, as well as manufacture cGMP ...
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TWI306790B
TWI306790B - Method for manufacturing rhenium-containing alloy powder, rhenium-containing alloy powder, and conductor paste - Google Patents
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Method for manufacturing rhenium-containing alloy powder, rhenium
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 precipitated on the surface of the main component metal particles as a result of this reduction is diffused under a high …
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