Karborund

Karborund is a brand name for a synthetic abrasive material, primarily composed of silicon carbide (SiC). It was developed by the Carborundum Company, a pioneer in the abrasives industry, in the early 20th century. The term "karborund" is a portmanteau of "carbon" and "corundum," reflecting its composition and the corundum structure of its crystals.

Karborund is known for its exceptional hardness, second only to diamond, making it an ideal material for cutting, grinding, and polishing applications. Its high thermal conductivity and chemical inertness further enhance its utility in various industrial processes. The material is produced through a high-temperature reaction between silica sand and carbon, resulting in a fine, white powder that can be pressed and sintered into various shapes and sizes.

Karborund is widely used in the manufacturing of abrasive tools, such as grinding wheels, sandpaper, and polishing compounds. It is also employed in the production of cutting tools for metalworking, as well as in the ceramics and semiconductor industries. Its ability to withstand high temperatures and resist chemical corrosion makes it a valuable component in refractory materials and high-performance coatings.

The Carborundum Company, which introduced the karborund brand, continues to be a significant player in the abrasives industry, offering a range of products under the karborund name. The company's legacy and the enduring popularity of karborund as a high-quality abrasive material attest to its importance in modern manufacturing and industrial processes.