Browse Topic: Niobium
When it comes to quantum technology, niobium is making a comeback. For the past 15 years, niobium has been sitting on the bench after experiencing a few mediocre at-bats as a core qubit material
This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars, forgings, and flash welded rings up to 4.00 inches (101.6 mm), inclusive, in nominal thickness or distance between parallel sides and having a maximum cross-sectional area of less than 12.6 square inches (81 cm2). Stock for forging or flash welded rings may be of any size
This specification covers a corrosion- and heat-resistant steel in the form of seamless tubing
This specification covers a corrosion- and heat-resistant steel in the form of welding wire
This specification covers a corrosion- and heat-resistant nickel alloy in the form of sheet, strip, foil, and plate 1.00 inch (25.4 mm) and under in thickness
This specification covers a corrosion and heat-resistant nickel alloy in the form of seamless tubing having nominal OD of 0.125 inch (3.18 mm) and over with nominal wall thickness of 0.015 inch (0.38 mm) and over (see 8.5
This specification covers a corrosion and heat-resistant, air-melted, nickel alloy in the form of investment castings
This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars, forgings, and flash welded rings in the solution heat-treated condition, 5 inches (127 mm) and under in nominal diameter or least distance between parallel sides (thickness) having a maximum cross-sectional area of 50 square inches (323 cm2), and stock of any size for forging, flash welded rings, or heading
This specification covers an iron-nickel alloy in the form of bars, forgings, flash welded rings, and stock for forging, flash welded rings, or heading
This specification covers a high strength, corrosion- and heat-resistant cobalt-nickel-chromium alloy in the form of bars 1-3/4 inches (44.4 mm) and under in nominal diameter
The element niobium (Nb), a transition metal, stands ready to improve the performance of one of the lithium-ion (Li-ion) battery’s confusing array of possible electrode chemistries — the LTO (lithium titanium oxide) anode, which after graphite is the second most-produced. During battery charging, lithium ions leave the positive cathode and move through the battery’s electrolyte to take up positions of higher energy in the anode. During discharge, this process reverses and drives electrons through an external circuit to power the load
This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars, forgings, and flash welded rings in the solution and precipitation heat treated condition. Product covered by this specification is limited to 10.00 inches (254 mm) and under in nominal diameter or maximum cross-sectional dimension between parallel sides (thickness) and nominal cross sectional area of 78.54 in2 (503 cm2). Stock may be of any size for forging or flash welded rings
This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings in the solution heat treated condition. Product covered by this specification is limited to 10.00 inches (254 mm) and under in nominal diameter or maximum cross-sectional dimension between parallel sides (thickness) and nominal cross sectional area of 78.54 in2 (503 cm2) in cross-sectional area. Stock for forging, ring, or heading may be of any size
This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings in the solution heat treated condition, Product covered by this specification is limited to 10.00 inches (254 mm) and under in nominal diameter or maximum cross-sectional dimension between parallel sides (thickness) and 78.54 square inches (503 cm2) in cross-sectional area. Stock may be of any size for forging or flash welded rings
This specification covers a columbium (niobium) alloy in the form of foil, sheet, strip, or plate
This specification covers a corrosion- and heat-resistant nickel alloy in the form of sheet, strip, and plate up to 1.000 inch (25.4 mm) in nominal thickness
Performance evaluation of martensitic press-hardened steels by VDA 238-100 three-point bend testing has become commonplace. Significant influences on bending performance exist from both surface considerations related to both decarburization and substrate-coating interaction and base martensitic steel considerations such as structural heterogeneity, i.e., banding, prior austenite grain size, titanium nitride (TiN) dispersion, mobile hydrogen, and the extent of martensite tempering as result auto-tempering upon quenching or paint baking during vehicle manufacturing. Deconvolution of such effects is challenging in practice, but it is increasingly accepted that surface considerations play an outsized role in bending performance. For specified surface conditions, however, the base steel microstructure can greatly influence bending performance and associated crash ductility to meet safety and mass-efficiency targets. This study reports and elucidates the positive effect of niobium
The intended upper bound of this specification is that the particle size distribution (PSD) of powders supplied shall be <60 mesh (250 μm) and that no powder (0.0 wt%) greater than 40 mesh (425 μm) is allowed
This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings up to 4.00 inches (101.6 mm), inclusive, and stock for forging or flash welded rings of any size
Thermoelastic instabilities in the contact of brake friction material cause hotbands and hotspots on the surface of brake disc. These phenomena generate thermal stresses that result in generation of cracks, which limit the lifetime of the discs. In the present work, the influence of the chemical composition of brake discs on the thermoelastic behavior of the system and on the lifetime of the discs was investigated. The experimental evaluation was carried out in an inertial dynamometer using the SAE J3080 standard procedure applied on a brake system. Two discs (namely A and B) with different chemical compositions were subjected to the tests. The brake pad composition was kept fixed. The thermoelastic effects on the inner surface of the disc were observed by contact (thermocouple) and noncontact measurement techniques (thermography), as well as through photographic images of the disc’s surfaces. Disc A showed negligible amount of Nb while disc B exhibited 0.360%. Besides, disc B
This specification covers a corrosion and heat-resistant steel in the form of welded tubing
This specification covers a corrosion-resistant steel product in the solution and precipitation heat treated (H1025) condition
This specification covers a corrosion and heat resistant steel in the form of bars, wire, forgings, mechanical tubing, flash welded rings, and stock for forging or flash welded rings over 0.50 inch (12.7 mm) in nominal diameter or least distance between parallel sides (see 8.6
This specification covers a premium aircraft-quality corrosion-resistant steel in the form of bars, wire, forgings, mechanical tubing, and flash welded rings 12.0 inches (305 mm) and under, in nominal diameter or least distance between parallel sides, and stock of any size for forging or flash welded rings (see 8.7
This specification covers a corrosion and heat-resistant steel in the form of seamless tubing
This specification covers a corrosion and heat-resistant steel in the form of welding wire
This specification covers a corrosion and heat-resistant nickel alloy in the form of sheet, strip, foil, and plate 1.00 inch (25.4 mm) and under in thickness (see 8.5
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