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Material properties of diamond. Burns above 700 °C in air. Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. It is a crystal that is transparent to opaque and which is generally isotropic (no or very weak birefringence ).
Diamond is the hardest known material to date, with a Vickers hardness in the range of 70–150 GPa. Diamond demonstrates both high thermal conductivity and electrically insulating properties, and much attention has been put into finding practical applications of this material. However, diamond has several limitations for mass industrial ...
Graphite, named by Abraham Gottlob Werner in 1789, from the Greek γράφειν ( graphein, "to draw/write", for its use in pencils) is one of the most common allotropes of carbon. Unlike diamond, graphite is an electrical conductor. Thus, it can be used in, for instance, electrical arc lamp electrodes.
Diamond. Typically yellow, brown, or gray to colorless. Less often blue, green, black, translucent white, pink, violet, orange, purple, and red. Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond as a form of carbon is a tasteless, odourless, strong, and brittle solid that ...
On Wednesday, July 30, actress Reese Witherspoon enjoyed dinner with private equity financier Oliver Haarmann after the pair arrived via helicopter in New York City a night earlier. They were ...
Template. : NFPA 704 diamond. This template produces a NFPA 704 safety square with optionally four hazard codes. It is designed to be used in a table. Primary use is through { { Chembox }}, the { { NFPA 704 }} box and { { OrganicBox complete }} (chemical data pages). When used stand-alone (outside of a table), consider the { { NFPA 704 }} box.
LAS VEGAS (AP) — Judith Monarrez crumpled onto her kitchen floor and wept when the news arrived in an email: Gizmo, her pet dog missing for nine years, had been found alive. Monarrez was 28 and ...
Crystallographic defects in diamond. Synthetic diamonds of various colors grown by the high-pressure and high-temperature technique, the diamond size is ~2 mm. Infrared absorption spectrum of type IaB diamond. (1) region of nitrogen impurities absorption (here mostly due to the B-centers), (2) platelets peak, (3) self-absorption of diamond ...