摘要:
A three-dimensional metallic foam is fabricated with an active oxide material for use as an anode for lithium batteries. The porous metal foam, which can be fabricated by a freezecasting process, is used as the anode current collector of the lithium battery. The porous metal foam can be heat-treated to form an active oxide material to form on the surface of the metal foam. The oxide material acts as the three-dimensional active material that reacts with lithium ions during charging and discharging.
摘要:
Biodegradable, magnesium alloys and composites, articles produced therefrom, methods of making the same, and methods of using the same are described.
摘要:
A manufacturing process is provided. During this process, material is solidified together within a chamber to form an object using an additive manufacturing device. At least a portion of the solidified material is conditioned within the chamber using a material conditioning device.
摘要:
Methods are disclosed for making a hot isostatic pressing container for hot isostatic pressing a powder material to form an article comprising three-dimensionally printing the container from a build powder, the container having a cavity for receiving the powder material and an outer section having an outer surface, the cavity having a surface and being shaped and sized so that hot isostatic pressing the container with the powder material within the cavity results in the production of the article. Methods are also disclosed for making the hot isostatically pressed article using the container.
摘要:
Electrodes and their associated methods of manufacturing are disclosed. An electrode comprises a metal body, a conductive coating, and a metal oxide layer. The metal body is formed from a plurality of compacted metal nanoparticles. The conductive coating is formed on a first side of the metal body. The conductive coating comprises a conductive material. The metal oxide layer is formed on a second side of the metal body. The metal oxide layer includes a plurality of metal oxide nanoparticles. The electrode may be used in a supercapacitor. A method for fabricating an electrode comprises synthesizing a plurality of metal nanoparticles, compacting the plurality of metal nanoparticles into a metal body, depositing a conductive coating on a first side of the metal body, and forming a metal oxide layer on a second side of the metal body.
摘要:
A presente invenção refere-se a novos tubos, dutos ou risers de aço à base de grafeno, cujos produtos são obtidos por um método de fabricação que consiste na mistura de pós de aço e adição de nanofolhas de grafeno funcionalizadas (mistura balanceada com minérios de ferro), Jtratamento térmico seguido de resfriamento, conformação da geometria tubular ê acabamento superficial por jateamento com granalhas de grafeno e/ou outras granalhas. Além da exclusiva composição química à base de grafeno, com teores de carbono que variam entre 0.01 e 21.0%, tais produtos apresentam a espessura da parede (6) entre 800 nm e 80 mm (de ultra fina a robusta), diâmetro entre 10 e 5000 mm, e são dotados de resistência à tração não inferior a 2000 MPa, podendo atingir até 50 GPa, com características muito superiores às obtidas por outros métodos, apresentando ainda microestrutura formada por nanofolhas de grafeno, ferrita e/ou austenita e/ou carbeto de ferro (Fe 3 C) e/ou perlita e/ou martensita e/ou nanotubos de carbono e/ou fibras de carbono e/ou nanodiamante e/ou fulerenos e/ou grafite, ou uma combinação de tais estruturas. Tais produtos podem ser utilizados no transporte de petróleo, gás natural e biocombustíveis, incluindo sistemas risers submarinos de águas profundas (>1500 m), com aplicação direta na indústria do petróleo.
摘要:
A differential assembly, bevel gears for the assembly, and a method of making the bevel gears are disclosed. The bevel gears have a form which provides for high power density transfer in a reliable manner. The sphere diameter of the gears and overall size of the differential assembly can be reduced.
摘要:
A process for producing a weldable titanium or titanium alloy wire characterised in that full consolidation of the wire is achieved via solid-state processing entailing compaction, extrusion, and rolling, whereby melting of the constituent titanium sponge particles does not occur.