Silicon is a chemical element with the symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster, and is a tetravalent metalloid and semiconductor.It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, lead, and flerovium are below it. It is relatively unreactive. Because of its high …

Szilícium A Wikipédiából, a szabad enciklopédiából A „Si” szócikk ide irányít át. Hasonló címmel lásd még: Si (egyértelműsítő lap). A szilícium a 14-es rendszámú kémiai elem, vegyjele Si, nyelvújításkori neve kovany. Szürke színű, fémesen csillogó, nagyon kemény anyag. 1823 -ban fedezte fel Jöns Jakob Berzelius.

Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO 2, most commonly found in nature as quartz and in various living organisms. In many parts of the world, silica is the major constituent of sand.Silica is one of the most complex and most abundant families of materials, existing as a compound of several minerals and as a synthetic product.

Silicon nitride is a chemical compound of the elements silicon and nitrogen. Si 3 N 4 is the most thermodynamically stable and commercially important of the silicon nitrides, and the term "silicon nitride" commonly refers to this specific composition. It is a white, high-melting-point solid that is relatively chemically inert, being attacked by dilute HF and hot H

SiGe ( / ˈsɪɡiː / or / ˈsaɪdʒiː / ), or silicon–germanium, is an alloy with any molar ratio of silicon and germanium, i.e. with a molecular formula of the form Si 1−x Ge x. It is commonly used as a semiconductor material in integrated circuits (ICs) for heterojunction bipolar transistors or as a strain -inducing layer for CMOS transistors.

Silicon carbide (SiC), also known as carborundum (/ ˌ k ɑːr b ə ˈ r ʌ n d əm /), is a hard chemical compound containing silicon and carbon.A semiconductor, it occurs in nature as the extremely rare mineral moissanite, but has been mass-produced as a powder and crystal since 1893 for use as an abrasive.Grains of silicon carbide can be bonded together by sintering to form very hard ...