Aluminium bronze is a type of bronze in which aluminium is the main alloying metal added to copper. A variety of aluminium bronzes of differing compositions have found industrial use, with most ranging from 5% to 11% aluminium by weight, the remaining mass being copper; other alloying agents such as iron, nickel, manganese, and silicon are also sometimes added to aluminium bronzes.
Duralumin (also called duraluminum, duraluminium or dural) is the trade name of one of the earliest types of age-hardenable aluminium alloys. The main alloying constituents are copper, manganese, and magnesium. A commonly used modern equivalent of this alloy type is AA2024, which contains 4.4% copper, 1.5% magnesium, 0.6% manganese and 93.5% aluminium by weight. Typical yield strength is 450 MPa, with variations depending on the composition and temper.
Silumin is a series of lightweight, high-strength aluminium alloys with silicon content of 12%. Among the advantages of silumin is its high resistance to corrosion, making it useful in humid environments. The addition of silicon to aluminium also makes it more fluid when liquid, which together with its low cost (both component elements are relatively cheap to extract), makes it a very good casting alloy and a fresher metal. It is also used on 3 phase motors to allow speed regulation.
Birmabright is a trade name of the former Birmetals Co. (Birmabright works in Clapgate Lane, Quinton, Birmingham, UK) for various types of lightweight sheet metal in an alloy of aluminium and magnesium. The constituents are 7% magnesium, sometimes 1% manganese, and the remainder aluminium. The BB2 is one example, of which equivalent specifications are British standard NS4, American 5251 and ISO designation AlMg2.
MKM steel, an alloy containing nickel and aluminum, was developed in 1931 by the Japanese metallurgist Tokuhichi Mishima. While conducting research into the properties of nickel, Mishima discovered that a strongly magnetic steel could be created by adding aluminum to non-magnetic nickel steel. MKM steel is tough and durable, inexpensive to produce, maintains strong magnetism when miniaturized and can produce a stable magnetic force in spite of temperature changes or vibration.
Devarda's alloy (CAS # 8049-11-4), is an alloy of aluminium (44% – 46%), copper (49% – 51%) and zinc (4% – 6%). Devarda's alloy is used as reducing agent in analytical chemistry for the determination of nitrates after their reduction to ammonia under alkaline conditions. It owes its name to the Italian chemist Arturo Devarda (1859 – 1944), who synthezised it at the end of the 19 century to develop a new method to analyze nitrate in Chile saltpeter.
Alumel is an alloy consisting of approximately 95% nickel, 2% manganese, 2% aluminium and 1% silicon. This magnetic alloy is used for thermocouples and thermocouple extension wire. Alumel is a registered trademark of Hoskins Manufacturing Company. Properties of Alumel: electrical resistivity: 0.294 μΩm In thermocouples, alumel is often used together with chromel to form type K thermocouples.
Nambé is an eight-metal alloy whose major component is aluminum. It was created at Los Alamos National Laboratory in the 1940s and is exclusively produced by the Nambé Mills, Inc. , which was founded in 1951 near Nambé Pueblo, some 10 miles north of Santa Fe, New Mexico. The alloy has the luster of silver and the solidity of iron. Nambe has a lower thermal conductivity than silver. Nambé does not contain silver, lead or pewter (a tin and copper alloy) and resists tarnishing.
Magnox is an alloy—mainly of magnesium with small amounts of aluminium and other metals—used in cladding unenriched uranium metal fuel with a non-oxidising covering to contain fission products in nuclear reactors. Magnox is short for Magnesium non-oxidising. This material has the advantage of a low neutron capture cross section, but has two major disadvantages: It limits the maximum temperature (to about 360 Celsius), and hence the thermal efficiency, of the plant.
Aluminium alloys are alloys in which aluminium is the predominant metal. Typical alloying elements are copper, zinc, manganese, silicon, and magnesium. There are two principal classifications, namely casting alloys and wrought alloys, both of which are further subdivided into the categories heat-treatable and non-heat-treatable. About 85% of aluminium is used for wrought products, for example rolled plate, foils and extrusions.
This list provides a guide to the most important opera composers, as determined by their presence on a majority of compiled lists of significant opera composers. (See the "Lists Consulted" section for full details. ) The composers run from Jacopo Peri, who wrote the first ever opera in late 16th century Italy, to John Adams, one of the leading figures in the contemporary operatic world. The brief accompanying notes offer an explanation as to why each composer has been considered major.
De Grouchy syndrome is a rare congenital medical condition caused by an abnormality involving chromosome 18. It has two forms, classified as type 1 or type 2, depending on the nature of the genetic lesion. De Grouchy syndrome type 1 involves deletion of genes from the short arm of the chromosome (18p). This condition, first described in the 1960s, has been described in over 100 case reports. De Grouchy syndrome type 1 is also called “monosomy 18p”, “18p deletion syndrome”, or “18p- syndrome.
Red Berets F.C. is a football club in Nakuru, Kenya. The club was based in Nairobi up to 2007 . They play in the top level of Kenyan professional football, the Kenyan Premier League. Its home ground is Afraha Stadium in Nakuru, but due to its unavailability in 2008, the club plays currently at Greensteds School grounds . The club was founded in 1980. it is owned by Kenya Police. In 2000 it played in the Nationwide League and won promotion to the Premier League.