Üvegkerámia

Üvegkerámia, meaning glass-ceramic in Hungarian, refers to a class of materials that possess properties of both glass and ceramics. These materials are created by controlled crystallization of a glass, a process known as ceramization. The resulting material consists of a mixture of crystalline phases dispersed within a glassy matrix. This unique microstructure imparts desirable properties such as high strength, thermal shock resistance, low thermal expansion, and excellent electrical insulation.

The production of üvegkerámia typically involves melting raw materials to form a glass, shaping it into the desired form, and then heating it to specific temperatures for a controlled period. This heat treatment induces the formation of fine, uniformly distributed crystalline particles within the glass. The specific composition of the initial glass and the subsequent heat treatment parameters determine the type and proportion of crystalline phases, which in turn dictate the final properties of the üvegkerámia.

Üvegkerámia finds applications in a variety of fields due to its advantageous characteristics. It is commonly used for cooktops, where its resistance to heat and thermal shock is crucial. It is also employed in cookware, oven doors, and as a material for laboratory equipment and telescope mirrors. In some specialized applications, its electrical insulating properties are utilized. The versatility and performance of üvegkerámia make it a valuable material in modern technology and household goods.