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Annealed Pyrolytic Graphite (APG), also known as Thermally Annealed Pyrolytic Graphite (TPG), [1] is a form of synthetic graphite that offers excellent in-plane thermal conductivity. As with pyrolytic carbon or pyrolytic graphite (PG), APG is also low in mass, is electrically conductive , and offers diamagnetic properties that allow it to ...
It is sometimes called white graphite, due to its similar properties. When a large number of crystallographic defects bind these planes together, graphite loses its lubrication properties and becomes what is known as pyrolytic graphite. It is also highly anisotropic, and diamagnetic, thus it will float in mid-air above a strong magnet.
Annealed pyrolytic graphite; B. Biot number; C. Copper in heat exchangers; E. Heat equation; G. General equation of heat transfer; H. Heat flux measurements of ...
In this paper, she defined graphitizing carbons as those that can transform into crystalline graphite by being heated to 3,000 °C (3,270 K; 5,430 °F), while non-graphitizing carbons do not transform into graphite at any temperature. Precursors that produce graphitizing carbon include polyvinyl chloride (PVC) and petroleum coke.
In the semiconductor industry, silicon wafers are annealed to repair atomic level disorder from steps like ion implantation. In the process step, dopant atoms, usually boron, phosphorus or arsenic, move into substitutional positions in the crystal lattice, which allows these dopant atoms to function properly as dopants in the semiconducting ...
Graphite – also used as opacifier in rocket fuels to prevent heat transfer by radiation into lower layers of fuels and avoid the related explosions; Carbon black – produces long lasting fine gold sparks in fireworks, also used as opacifier in rocket fuels; Asphaltum – carbon-based fuel, also used as a binder. Some forms contain ammonia ...
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." BY NOW, YOU'VE probably seen the news about the FDA revoking authorization for the use of Red Dye No ...
Annealed pyrolytic graphite, a thermally conductive form of synthetic graphite; Anterior pituitary gland, an endocrine gland; APG Airlines, a French airline based in Cannes; APG (pension fund), a Netherlands-based pension fund established under the Stichting Pensioenfonds ABP; Arc pair grammar; Artist Placement Group, an art group founded in 1966.