Elektron is the registered

trademark A trademark (also written trade mark or trade-mark) is a type of intellectual property consisting of a recognizable sign, design, or expression that identifies products or services from a particular source and distinguishes them from others ...

of a wide range of

magnesium Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 of the periodic ta ...

alloy An alloy is a mixture of chemical elements of which at least one is a metal. Unlike chemical compounds with metallic bases, an alloy will retain all the properties of a metal in the resulting material, such as electrical conductivity, ductility, ...

s manufactured by a British company

Magnesium Elektron Magnesium Elektron Ltd (MEL or the Mag) is a British materials manufacturer which produces magnesium and zirconium metals and compounds. Since 2018 it has traded as Luxfer MEL Technologies, following a series of mergers and acquisitions. It is stil ...

Limited. There are about 100 alloys in the Elektron range, containing from 0% to 9.5% of some of the following elements in varying proportions:

aluminium Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. I ...

(< 9.5%),

yttrium Yttrium is a chemical element with the symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a "rare-earth element". Yttrium is almost always found in com ...

(5.25%),

neodymium Neodymium is a chemical element with the symbol Nd and atomic number 60. It is the fourth member of the lanthanide series and is considered to be one of the rare-earth metals. It is a hard, slightly malleable, silvery metal that quickly tarnishes i ...

(2.7%),

silver Silver is a chemical element with the Symbol (chemistry), symbol Ag (from the Latin ', derived from the Proto-Indo-European wikt:Reconstruction:Proto-Indo-European/h₂erǵ-, ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, whi ...

(2.5%),

gadolinium Gadolinium is a chemical element with the symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed. It is only slightly malleable and is a ductile rare-earth element. Gadolinium reacts with atmospheric oxygen ...

(1.3%),

zinc Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodi ...

(0.9%),

zirconium Zirconium is a chemical element with the symbol Zr and atomic number 40. The name ''zirconium'' is taken from the name of the mineral zircon, the most important source of zirconium. The word is related to Persian '' zargun'' (zircon; ''zar-gun'', ...

(0.6%),

manganese Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial alloy use ...

(0.5%) and other

rare-earth metals The rare-earth elements (REE), also called the rare-earth metals or (in context) rare-earth oxides or sometimes the lanthanides (yttrium and scandium are usually included as rare earths), are a set of 17 nearly-indistinguishable lustrous silve ...

. Varying amounts of alloying elements (up to 9.5%) added to the magnesium result in changes to mechanical properties such as increased

tensile strength Ultimate tensile strength (UTS), often shortened to tensile strength (TS), ultimate strength, or F_\text within equations, is the maximum stress that a material can withstand while being stretched or pulled before breaking. In brittle materials t ...

creep Creep, Creeps or CREEP may refer to: People * Creep, a creepy person Politics * Committee for the Re-Election of the President (CRP), mockingly abbreviated as CREEP, an fundraising organization for Richard Nixon's 1972 re-election campaign Art ...

resistance, thermal stability or

corrosion Corrosion is a natural process that converts a refined metal into a more chemically stable oxide. It is the gradual deterioration of materials (usually a metal) by chemical or electrochemical reaction with their environment. Corrosion engine ...

resistance. Elektron is unusually light and has a

specific gravity Relative density, or specific gravity, is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. Specific gravity for liquids is nearly always measured with respect to water (molecule), wa ...

of about 1.8 compared with the 2.8 of aluminium alloy, or the 7.9 of steel. Magnesium's relatively low

density Density (volumetric mass density or specific mass) is the substance's mass per unit of volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' can also be used. Mathematical ...

makes its alloy variants suitable for use in

auto racing Auto racing (also known as car racing, motor racing, or automobile racing) is a motorsport involving the racing of automobiles for competition. Auto racing has existed since the invention of the automobile. Races of various sorts were organise ...

and

aerospace engineering Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft. It has two major and overlapping branches: aeronautical engineering and astronautical engineering. Avionics engineering is si ...

applications.

History

Elektron or ''Elektronmetall'' was first developed in 1908 by Gustav Pistor and Wilhelm Moschel at the

Bitterfeld Bitterfeld () is a town in the district of Anhalt-Bitterfeld, Saxony-Anhalt, Germany. Since 1 July 2007 it has been part of the town of Bitterfeld-Wolfen. It is situated approximately 25 km south of Dessau, and 30 km northeast of Halle (S ...

works of Chemische Fabrik Griesheim-Elektron (CFGE or CFG), the headquarters of which was in Griesheim am Main,

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

. The composition of the initial Elektron alloy was approximately Mg 90%, Al 9%, other 1%. At its pavilion at the International Aviation Fair (Internationale Luftschiffahrt-Ausstellung, ILA) in

Frankfurt am Main Frankfurt, officially Frankfurt am Main (; Hessian: , "Frank ford on the Main"), is the most populous city in the German state of Hesse. Its 791,000 inhabitants as of 2022 make it the fifth-most populous city in Germany. Located on its na ...

in 1909, CFG exhibited an Adler 75HP engine with a cast magnesium alloy crankcase. Also exhibiting at the 1909 Frankfurt Air Exhibition was

August Euler August Euler (20 November 1868 – 1 July 1957) was a pioneer German aviator, aircraft constructor and the holder of the first German pilot's license, issued in 1909. After the First World War, he became German Secretary of State for Air, unt ...

(1868–1957) – owner of German pilot's licence No. 1 – who manufactured Voisin biplanes under licence in Griesheim am Main. His Voisins with Adler 50 hp engines flew in October 1909. CFG joined the newly created

IG Farben Interessengemeinschaft Farbenindustrie AG (), commonly known as IG Farben (German for 'IG Dyestuffs'), was a German chemical and pharmaceutical conglomerate (company), conglomerate. Formed in 1925 from a merger of six chemical companies—BASF, ...

as an associate company in 1916. During the Allied Occupation after

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

, a Major Charles J. P. Ball, DSO, MC, of the

Royal Horse Artillery The Royal Horse Artillery (RHA) was formed in 1793 as a distinct arm of the Royal Regiment of Artillery (commonly termed Royal Artillery) to provide horse artillery support to the cavalry units of the British Army. (Although the cavalry link ...

was stationed in Germany. He later joined F. A. Hughes and Co. Ltd., which began manufacturing elektron in the UK under licence from IG Farben from around 1923. CFG merged fully with the IG Farben conglomerate in 1925 along with Versuchsbau

Hellmuth Hirth Hellmuth Hirth (; April 24, 1886 – July 1, 1938) was a German engineer who founded the Mahle GmbH and Hirth companies, manufacturing engine components and complete aircraft engines respectively. Biography Hirth was born in Heilbronn, the son ...

(a copper alloy manufacturer), to form another company, Elektronmetall

Bad Cannstatt Bad Cannstatt, also called Cannstatt (until July 23, 1933) or Kannstadt (until 1900), is one of the outer stadtbezirke, or city boroughs, of Stuttgart in Baden-Württemberg, Germany. Bad Cannstatt is the oldest and most populous of Stuttgart's b ...

Stuttgart Stuttgart (; Swabian: ; ) is the capital and largest city of the German state of Baden-Württemberg. It is located on the Neckar river in a fertile valley known as the ''Stuttgarter Kessel'' (Stuttgart Cauldron) and lies an hour from the ...

. In 1935 IG Farben, ICI and F. A. Hughes and Co. (22% shares) founded Magnesium Elektron Ltd. of

Clifton, Greater Manchester Clifton is a suburb of Swinton in the City of Salford in Greater Manchester, England. It lies along the edge of Irwell Valley in the north of the City of Salford. Historically in Lancashire, it was a centre for coal mining, and once formed par ...

. The company is still manufacturing alloys in 2017.

Uses

Elektron has been used in

Zeppelin A Zeppelin is a type of rigid airship named after the German inventor Count Ferdinand von Zeppelin () who pioneered rigid airship development at the beginning of the 20th century. Zeppelin's notions were first formulated in 1874Eckener 1938, pp ...

airships, aircraft, and motor racing applications. In 1924 magnesium alloys (AZ; 2,5–3,0% Al; 3,0–4,0% Zn) were used in automobile pistons diecast by Elektronmetall Bad Cannstatt, another IG Farben company formed out of Versuchsbau Hellmuth Hirth. The main engine bearers of the

Messerschmitt Bf-109 The Messerschmitt Bf 109 is a German World War II fighter aircraft that was, along with the Focke-Wulf Fw 190, the backbone of the Luftwaffe's fighter force. The Bf 109 first saw operational service in 1937 during the Spanish Civil War an ...

and the

Junkers Ju-87 The Junkers Ju 87 or Stuka (from ''Sturzkampfflugzeug'', "dive bomber") was a German dive bomber and ground-attack aircraft. Designed by Hermann Pohlmann, it first flew in 1935. The Ju 87 made its combat debut in 1937 with the Luftwaffe's Cond ...

were made from forged elektron. The air-cooled

BMW 801 The BMW 801 was a powerful German air-cooled 14-cylinder-radial aircraft engine built by BMW and used in a number of German Luftwaffe aircraft of World War II. Production versions of the twin-row engine generated between 1,560 and 2,000 PS ( ...

radial Radial is a geometric term of location which may refer to: Mathematics and Direction * Vector (geometric) In mathematics, physics, and engineering, a Euclidean vector or simply a vector (sometimes called a geometric vector or spatial vector) ...

aero engine that powered the

Focke-Wulf FW 190 The Focke-Wulf Fw 190, nicknamed ''Würger'' (" Shrike") is a German single-seat, single-engine fighter aircraft designed by Kurt Tank at Focke-Wulf in the late 1930s and widely used during World War II. Along with its well-known counterpart, ...

had a radiator fan made of magnesium alloy, very probably elektron. The prototype 4-seater 1948

Planet Satellite The Planet Satellite was a British light aircraft of the late 1940s. Designed to exploit new technology, the aircraft was abandoned after two crashes although the innovative fuselage was later incorporated into a helicopter prototype. Design an ...

had a

monocoque Monocoque ( ), also called structural skin, is a structural system in which loads are supported by an object's external skin, in a manner similar to an egg shell. The word ''monocoque'' is a French term for "single shell". First used for boats, ...

fuselage of elektron, a solid elektron keel and wings skinned in elektron, but the keel suffered from stress failures and never reached production. The connectors for the fuel pipes in the engine compartment of

Panther tank The Panther tank, officially ''Panzerkampfwagen V Panther'' (abbreviated PzKpfw V) with ordnance inventory designation: ''Sd.Kfz.'' 171, is a German medium tank of World War II. It was used on the Eastern and Western Fronts from mid-1943 to ...

s were originally made of elektron, but they distorted when clamped and were replaced with steel ones.

Siemens-Halske Siemens & Halske AG (or Siemens-Halske) was a German electrical engineering company that later became part of Siemens. It was founded on 12 October 1847 as ''Telegraphen-Bauanstalt von Siemens & Halske'' by Werner von Siemens and Johann Geo ...

used elektron casings for their ''

Hellschreiber The Hellschreiber, Feldhellschreiber or Typenbildfeldfernschreiber (also Hell-Schreiber named after its inventor Rudolf Hell) is a facsimile-based teleprinter invented by Rudolf Hell. Compared to contemporary teleprinters that were based on ty ...

'' military teleprinter used during WW2.

Incendiary bomb Incendiary weapons, incendiary devices, incendiary munitions, or incendiary bombs are weapons designed to start fires or destroy sensitive equipment using fire (and sometimes used as anti-personnel weaponry), that use materials such as napalm, th ...

s using elektron were developed towards the end of the First World War by both Germany (the B-1E ''Elektronbrandbombe'' or ''Stabbrandbombe'') and the UK. Although neither side used this type of bomb operationally during the conflict,

Erich Ludendorff Erich Friedrich Wilhelm Ludendorff (9 April 1865 – 20 December 1937) was a German general, politician and military theorist. He achieved fame during World War I for his central role in the German victories at Liège and Tannenberg in 1914. ...

mentions in his memoirs a plan to bomb Paris with a new type of incendiary bomb with the aim of overwhelming the city's fire services; this planned raid was also reported in ''

Le Figaro ''Le Figaro'' () is a French daily morning newspaper founded in 1826. It is headquartered on Boulevard Haussmann in the 9th arrondissement of Paris. The oldest national newspaper in France, ''Le Figaro'' is one of three French newspapers of reco ...

'' on 21 December 1918. The lightness of elektron meant that a large aeroplane like the Zeppelin-Staaken R-type bomber could carry hundreds of bomblets. The British and German incendiary bombs, used extensively during

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

, weighed about 1 kg and consisted of an outer casing made of elektron alloy, which was filled with

thermite Thermite () is a pyrotechnic composition of metal powder and metal oxide. When ignited by heat or chemical reaction, thermite undergoes an exothermic reduction-oxidation (redox) reaction. Most varieties are not explosive, but can create brief ...

pellets and fitted with a fuse. The fuse ignited the thermite, which in turn ignited the magnesium casing; it burned for about 15 minutes. Trying to douse the fire with water only intensified the reaction. It could not be extinguished and burned at such a high temperature that it could penetrate armour plate. The bodywork of certain racing cars utilized elektron, including the

Mercedes-Benz 300 SLR The Mercedes-Benz 300 SLR (W 196 S) was a 2-seat sports racing car that took part in the 1955 World Sportscar Championship before a catastrophic crash and fire at Le Mans later that year ended its domination prematurely. The car ...

that infamously crashed in the 1955 Le Mans race, highlighting its flammability.Spurring, Quentin (2011). ''Le Mans 1949-59''. Sherborne, Dorset: Evro Publishing , p. 217.

References

External links

Website of Magnesium Elektron Ltd.

a 1952 ''Flight'' advertisement for Magnesium Elektron's new alloy * ASTM International standards ?? {{DEFAULTSORT:Elektron (Alloy) Magnesium alloys Aluminium–magnesium alloys

History

Uses

See also

References

External links