Sapphire is a high-purity and high-density, single-crystalline form of aluminum oxide that may contain chromia, titania, yttria, or other dopants. Sapphire is usually transparent or translucent.

LignoSat is a four-inch (10cm) cube packed with advanced electronics and sensors. But instead of being constructed from ...

Aluminum oxide (Al 2 O 3), also known as alumina, corundum, sapphire, or ruby, is one of the best insulators used in a wide ...

An international team of scientists have combined cyclic-olefin copolymers with a powder of aluminum oxide to create a ...