An alloy is a mixture of metals or a mixture of a metal and another element.Alloys are defined by metallic bonding character.An alloy may be a solid solution of metal elements (a single phase) or a mixture of metallic phases (two or more solutions). Intermetallic compounds are alloys with a defined stoichiometry and crystal structure.he term alloy is used to describe a mixture of atoms in which the primary constituent is a metal. The primary metal is called the base, the matrix, or the solvent. The secondary constituents are often called solutes.
Marl or marlstone is a calcium carbonate or lime-rich mud or mudstone which contains variable amounts of clays and silt.
Flannell is a brushed lawn or twill weave fabric, with a soft texture on one or both sides. It is usually made of cotton, but also wool and synthetic fibers are used. Cotton flannels are most commonly used in shirts, and wool flannel in outerwear. Flannel is a very simple material to use.