Related Research Articles
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Another solid form of carbon known as graphite is the chemically stable form of carbon at room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth.
Graphite is a crystalline form of the element carbon. It consists of stacked layers of graphene. Graphite occurs naturally and is the most stable form of carbon under standard conditions. Synthetic and natural graphite are consumed on a large scale for uses in pencils, lubricants, and electrodes. Under high pressures and temperatures it converts to diamond. It is a good conductor of both heat and electricity.
The De Beers Diamond Consortium is a South African- British corporation that specializes in diamond mining, diamond exploitation, diamond retail, diamond trading and industrial diamond manufacturing sectors. The company is active in open-pit, large-scale alluvial and coastal mining. It operates in 35 countries and mining takes place in Botswana, Namibia, South Africa, Canada and Australia.
A period 3 element is one of the chemical elements in the third row of the periodic table of the chemical elements. The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behavior of the elements as their atomic number increases: a new row is begun when chemical behavior begins to repeat, meaning that elements with similar behavior fall into the same vertical columns. The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine and argon. The first two, sodium and magnesium, are members of the s-block of the periodic table, while the others are members of the p-block. All of the period 3 elements occur in nature and have at least one stable isotope.
Silicon carbide (SiC), also known as carborundum, is a hard chemical compound containing silicon and carbon. A semiconductor, it occurs in nature as the extremely rare mineral moissanite, but has been mass-produced as a powder and crystal since 1893 for use as an abrasive. Grains of silicon carbide can be bonded together by sintering to form very hard ceramics that are widely used in applications requiring high endurance, such as car brakes, car clutches and ceramic plates in bulletproof vests. Large single crystals of silicon carbide can be grown by the Lely method and they can be cut into gems known as synthetic moissanite.
Mitsui Group is a Japanese corporate group and keiretsu that traces its roots to the zaibatsu groups that were dissolved after World War II. Unlike the zaibatsu of the pre-war period, there is no controlling company with regulatory power. Instead, the companies in the group hold shares in each other, but they are limited to exchanging information and coordinating plans through regular meetings.
Lab-grown diamond is diamond that is produced in a controlled technological process. Unlike diamond simulants, synthetic diamonds are composed of the same material as naturally formed diamonds—pure carbon crystallized in an isotropic 3D form—and share identical chemical and physical properties.
Carbon is capable of forming many allotropes due to its valency. Well-known forms of carbon include diamond and graphite. In recent decades, many more allotropes have been discovered and researched, including ball shapes such as buckminsterfullerene and sheets such as graphene. Larger-scale structures of carbon include nanotubes, nanobuds and nanoribbons. Other unusual forms of carbon exist at very high temperatures or extreme pressures. Around 500 hypothetical 3‑periodic allotropes of carbon are known at the present time, according to the Samara Carbon Allotrope Database (SACADA).
Gemesis Inc. was a privately held company located in New York City. The company grew synthetic diamonds using proprietary technology.
Industrial gases are the gaseous materials that are manufactured for use in industry. The principal gases provided are nitrogen, oxygen, carbon dioxide, argon, hydrogen, helium and acetylene, although many other gases and mixtures are also available in gas cylinders. The industry producing these gases is also known as industrial gas, which is seen as also encompassing the supply of equipment and technology to produce and use the gases. Their production is a part of the wider chemical Industry.
Element Six is a company specialised in providing synthetic diamond, cubic boron nitride and other superhard materials for industrial use. Part of the De Beers Group, Element Six employs over 1,900 people and its primary manufacturing sites are located in the UK, Ireland, Germany, South Africa, and the US.
Gordon Kidd Teal was an American engineer. He invented a method of applying the Czochralski method to produce extremely pure germanium single crystals used in making greatly improved transistors. He, together with Morgan Sparks, invented a modification of the process that produced the configuration necessary for the fabrication of bipolar junction transistors. He is most remembered for developing the first silicon transistor while at Texas Instruments.
Sumitomo Electric Industries, Ltd. is a manufacturer of electric wire and optical fiber cables. Its headquarters are in Chūō-ku, Osaka, Japan. The company's shares are listed in the first section of the Tokyo, Nagoya Stock Exchanges, and the Fukuoka Stock Exchange. In the period ending March 2021, the company reported consolidated sales of US$26,5 billion.
The economy of Gujarat, a state in Western India, is the most industrialised in India, having the highest industrial output of any state in the union.It has the highest exports of any Indian state, accounting for 33% of all Indian exports in 2022-23. It leads in diverse industrial sectors such as chemicals, petrochemicals, dairy, drugs and pharmaceuticals, cement and ceramics, gems and jewellery, textiles and engineering. It has the highest Electricity Production Capacity and Maritime Port Cargo Volume among all states in India. It also has significant agricultural production with major agricultural produce of the state being cotton, groundnuts (peanuts), dates, sugar cane, milk and milk products. Gujarat recorded the lowest unemployment rate in India in 2022, with 4.4% of the labour force being unemployed.
As an important part of the national sustainable development strategy, the development of advanced materials is advancing the competitive nature and state of the art for Chinese industry. The State has put advanced materials high on its development agenda for the next decade and listed it among the key high-tech industry sectors that would be given priority for development by the State Council. At present, the pace of building China's advanced materials industry is accelerating. Advanced materials have been key fields in China's national R&D system.
Scio Diamond Technology Corporation was a synthetic diamond manufacturer that produced near flawless single-crystal diamonds for gemstone and industrial applications, in Greenville, South Carolina. The company produced chemical vapor deposition (CVD) gem-sized synthetic diamond crystals using processes pioneered by Apollo Diamond, and had acquired Apollo Diamond's technology and assets including several US patents on the processes.
Murugappa Group is an Indian conglomerate founded in 1900 by A. M. Murugappa Chettiar. The Group has 29 businesses including 10 companies listed on the NSE and the BSE. Headquartered in Chennai, the major companies of the Group include Carborundum Universal, Cholamandalam Financial Holdings, Cholamandalam Investment and Finance, Cholamandalam MS General Insurance, Coromandel International, EID Parry, Parry Agro Industries, Shanthi Gears, Tube Investments of India, Wendt (India), and CG Power and Industrial Solutions.
WD Lab Grown Diamonds ("WD") was a market leader in Chemical Vapor Deposition (CVD) diamonds, headquartered in the Washington, D.C. area. Founded in 2008, WD produces lab-grown diamonds for distribution under the brands, in addition to creating diamonds for high-tech Advanced Materials applications.
Diamond Foundry is a producer of lab grown diamonds in San Francisco, California, USA. Diamond Foundry claims that its lab-grown diamonds are of similar quality to natural diamonds and are more environmentally sustainable, as they do not require the extraction and processing of diamonds from the earth.
ALTR Created Diamonds is a brand of lab-grown diamonds created by R.A. Riam Group.
References
- ↑ Yarnell, Amanda (February 2, 2004). "The Many Facets of Man-made Diamonds". Chemical & Engineering News . Retrieved July 19, 2021.
- ↑ "Altr | News".
- ↑ Kottasová, Ivana (2018-05-29). "De Beers admits defeat over man-made diamonds". CNN . Time Warner Company . Retrieved 2018-05-30.
- ↑ "Man Made Diamonds Set in Designer Jewelry". Diamond Foundry. Retrieved 2017-02-05.
- ↑ Pure Grown Diamonds official website
- ↑ Scio Diamond Technology Corporation
- ↑ Tairus
- ↑ WD Lab Grown Diamonds
- ↑ Element Six
- ↑ Morgan Technical Ceramics Diamonex
- ↑ Scio Diamond, Industrial Archived 2011-12-27 at the Wayback Machine
- ↑ Sumitomo Electric