Difference between revisions of "Timeline of tungsten"

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| 1977 || || China is the biggest and most important tungsten ore concentrate supplier.<ref name="Tungsten: Properties, Chemistry, Technology of the Element, Alloys, and Chemical Compounds"/> || {{w|China}}
 
| 1977 || || China is the biggest and most important tungsten ore concentrate supplier.<ref name="Tungsten: Properties, Chemistry, Technology of the Element, Alloys, and Chemical Compounds"/> || {{w|China}}
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| 1979 || || The first International Tungsten Symposium is held in {{w|Stockholm}}.<ref>{{cite web |title=Tungsten : proceedings of the First International Tungsten Symposium, Stockholm, September 5-7, 1979 / edited ... by Mining Journal Books Limited in co-operation with the Primary Tungsten Association and the Consumer Reporting Group, co-sponsors of the symposium. |url=https://trove.nla.gov.au/work/10096953?q&versionId=11735156 |website=trove.nla.gov.au |accessdate=10 August 2018}}</ref> || {{w|Sweden}}
 
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| 1993 || || The price of tungsten reaches historical minimum, as a result of the collapse of the communist world together with a sudden fall in the worldwide tungsten consumption.<ref name="Tungsten: Properties, Chemistry, Technology of the Element, Alloys, and Chemical Compounds">{{cite book |last1=Lassner |first1=Erik |last2=Schubert |first2=Wolf-Dieter |title=Tungsten: Properties, Chemistry, Technology of the Element, Alloys, and Chemical Compounds |url=https://books.google.com.ar/books?id=GnPdBwAAQBAJ&pg=PA401&dq=%22tungsten%22+%22in+1960..1980%22&hl=en&sa=X&ved=0ahUKEwimm_2XjePcAhXDFZAKHZ0cCnEQ6AEIQjAE#v=onepage&q=%22tungsten%22%20%22in%201960..1980%22&f=false}}</ref> ||
 
| 1993 || || The price of tungsten reaches historical minimum, as a result of the collapse of the communist world together with a sudden fall in the worldwide tungsten consumption.<ref name="Tungsten: Properties, Chemistry, Technology of the Element, Alloys, and Chemical Compounds">{{cite book |last1=Lassner |first1=Erik |last2=Schubert |first2=Wolf-Dieter |title=Tungsten: Properties, Chemistry, Technology of the Element, Alloys, and Chemical Compounds |url=https://books.google.com.ar/books?id=GnPdBwAAQBAJ&pg=PA401&dq=%22tungsten%22+%22in+1960..1980%22&hl=en&sa=X&ved=0ahUKEwimm_2XjePcAhXDFZAKHZ0cCnEQ6AEIQjAE#v=onepage&q=%22tungsten%22%20%22in%201960..1980%22&f=false}}</ref> ||

Revision as of 10:40, 10 August 2018

This is a timeline of tungsten.

Big picture

Time period Development summary
16th century Tungsten is first discovered in the 16th century by tin miners, who find and then recognize the metal as a newly useful and undiscovered asset.[1]
20th century In the 1930s, new applications arise for tungsten compounds in the oil industry for the hydrotreating of crude oils. In the 1940s, during World War II, the Germans are the first to use tungsten carbide core in high velocity armor piercing projectiles. In the 1950s, tungsten is added into superalloys to improve performance. In the 1960s, new catalysts are born containing tungsten compounds to treat exhaust gases in the oil industry.[2]
21th century Currently, most tungsten resources are found in China, South Korea, Bolivia, Great Britain, Russia and Portugal, as well as in California and Colorado. About 80% of world’s supply is controlled by China.[3] Today, tungsten carbide is extremely widespread, with applications including metal cutting, machining of wood, plastics, composites, soft ceramics, chipless forming, mining, construction, rock drilling, structural parts, wear parts, and military components. Tungsten-steel alloys are used in the production of rocket engine nozzles, and superalloys containing tungsten are used in turbine blades and wear-resistant parts and coatings.[2]

Full timeline

Year Event type Details Country/region
1779 Irish chemist Peter Woulfe examines a mineral from Sweden and realizes it contains a new type of metal.[3]
1781 "In 1781, Wilhelm Scheele continued the research on this new metal and isolated an acidic white oxide"[3]
1783 "Juan and Fausto Elhuyar get that honor. At the Seminary at Vergara in Spain, they researched this mysterious metal. In 1783 they isolated the metal oxide from wolframite and then, unlike the others, reduced it to tungsten metal by heating it with carbon." Spain
1847 Engineer Robert Oxland is granted a patent to prepare, form, and reduce tungsten to its metallic format.[1]
1847 Tungsten salts are used to make colored cotton and to make clothes used for theatrical and other purposes fireproof.[2]
1855 Attempts are made to create steel made of tungsten.[1][2] Austria
1858 Steels containing tungsten begin to be produced.[1]
1895 American inventor Thomas Edison finds that calcium tungstate is the substance with the best ability to fluoresce when exposed to X-rays.[2] United States
1900 A special mix of steel and tungsten is exhibited at the World Exhibition in Paris.[2] France
1904 The first light bulbs using tungsten are patented.[1]
1908 William D. Coolidge discovers that tungsten is an ideal filament material.[3]
1909 Team led by American engineer William D. Coolidge working at General Electric discover a process that creates ductile tungsten filaments through suitable heat treatment and mechanical working.[2] United States
1911 The Coolidge process is commercialized. In a short time, tungsten light bulbs would spread all over the world equipped with ductile tungsten wires.[2] United States
1922 Tungsten is placed on the first official Government list of strategic minerals in the United States.[4] United States
1923 A German electrical bulb company submits a patent for tungsten carbide, or hardmetal. The carbide is made by "cementing" very hard tungsten monocarbide (WC) grains in a binder matrix of tough cobalt metal by liquid phase sintering. The resulting material combines high strenght, toughness and high hardness.[2] Germany
1977 China is the biggest and most important tungsten ore concentrate supplier.[5] China
1979 The first International Tungsten Symposium is held in Stockholm.[6] Sweden
1993 The price of tungsten reaches historical minimum, as a result of the collapse of the communist world together with a sudden fall in the worldwide tungsten consumption.[5]
1995 Production Two countries, China (69%), and the former Soviet Union (19%), account for over 80 percent of the world's production of tungsten.[7] China, Ex-USSR

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The initial version of the timeline was written by FIXME.

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What the timeline is still missing

[1], [2], [3], [4], [5], [6]

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References