Abstract A new synthetic diamond global innovation center (GIC) was officially established in Havel, Oxfordshire, England. Steve Coe, director of the Element Six Global Innovation Center, said: "GIC plants and equipment cost nearly 30 million pounds, and some technical equipment is still being shipped from South Africa...
A new synthetic diamond global innovation center (GIC) was officially established in Havel, Oxfordshire, England. Steve Coe, director of the Sixth Global Innovation Center, said: "GIC plants and equipment cost nearly £30 million, and some technical equipment is still on the way from South Africa to the center. So what is the 5,000m2 custom equipment factory used for? It is unique because it combines chemical vapor deposition (CVD) with high temperature and high pressure (HPHT) synthetic diamond to create the materials needed for a range of engineering applications beyond the general mechanical and abrasive applications.
Although the hardness characteristics of synthetic diamond are well known, its application is gradually changing with the change of the characteristics of the material, such as higher and higher thermal expansion coefficient, high chemical inertness, high thermal conductivity and wide electronic band gap. The following are just a few of the areas in which synthetic diamond innovative materials are used.
acoustics
British Worthing Sound Engineering, Bowers and Wilkins, recently collaborated with the Global Innovation Center to apply polycrystalline chemical vapor deposition (CVD) diamond as a component to speakers. The diamond tweeter thus broke the frequency of 70 kHz.
surroundings
Boron-containing synthetic diamonds have unique electrochemical properties that effectively oxidize organic and inorganic compounds. Ozone Technologies Inc. Electrolytic Ozone Co., Ltd. has jointly developed a patent with GIC that can generate ozone in water to kill pathogens. The Global Innovation Center (GIC) has also invented an O3 disinfectant spray that can be used at home, in restaurants, and in hospitals. GIC is also working on synthetic diamond electrodes to treat industrial wastewater and landfill leachate that cannot be solved by conventional methods.
Road maintenance
A polycrystalline diamond highway chisel has been developed that combines the hardness and wear resistance of diamonds to more than 40 times the service life of standard carbides. The use of polycrystalline diamond for road maintenance reduces the overall grinding time and the sampling is reduced. The chisel design helps to improve fuel efficiency. Because the polycrystalline diamond retains its original shape, the chisel does not require much penetration and manpower to achieve good functional effects.
Machinery and processing
Polycrystalline Cubic Boron Nitride (PCBN) composites are used in the production of precision cutting tools for the processing of ferrous materials such as hard steel, grey hard cast iron and high temperature superalloys. High-content polycrystalline cubic boron nitride materials can be used for the finishing of cast iron, especially in powder metallurgy parts such as automotive seats.
Electronics and semiconductors
Synthetic diamond is five times the thermal conductivity of copper. CVD diamond heatsinks bring a whole new dimension to the thermal management of semiconductor devices and extend the life of the device. Electronic grade CVD diamond materials are formed from single crystal and polycrystalline plates and are used in a variety of radioactive detection fields, from neutron detection for radiation intensity detection in medical radiation therapy to civil nuclear safety applications. GIC collaborated with Group4 Laboratories in the United States to develop a composite semiconductor wafer consisting of a heteroepitaxial GaN mixture that improves the efficiency of the power amplifier and works like radar and communications satellites.
Another area of ​​rapid growth is the application of synthetic diamond quantum theory. The combination of extremely impure (<0.05 ppb) electronic monocrystalline CVD diamond and high levels of nitrogen impurities opens up further applications in the field of quantum computing. Another advantage of synthetic diamonds: the quantum properties of synthetic diamonds are well handled and detected at room temperatures.
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