quartz glass

n. A clear vitreous solid, formed by melting pure silica, that can withstand high temperatures and is extremely transparent to infrared, visible, and ultraviolet radiations. Also called fused quartz, fused silica.

quartz glass

n (Ceramics) a colourless glass composed of almost pure silica, resistant to very high temperatures and transparent to near-ultraviolet radiation. Also called: silica glass or nitreous silica Sometimes shortened to: quartz

quartz′ glass`

n. a strong vitreous substance formed by the fusion of silica at high temperature. [1900–05]

Thesaurus

Noun

quartz glass - colorless glass made of almost pure silicalechatelierite, quartz, vitreous silica, crystalnatural glass - magma of any composition that cooled very rapidlysilica, silicon dioxide, silicon oxide - a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite

Quartz Glass

a single-component lime silicate glass produced by melting natural varieties of silica, such as rock crystal, vein quartz, and quartz sand, as well as synthetic silicon dioxide.

A distinction is made between two types of industrial quartz glass: transparent (optical and industrial) and opaque. Opacity is produced by a large number of small light-scattering gas bubbles (diameter, 0.03–0.3 microns) distributed throughout the glass. Optical transparent quartz glass, which is produced by fusion of rock crystal, is completely uniform and does not contain visible gas bubbles. Among the silicate glasses it has the lowest index of refraction (n_D = 1.4584) and the greatest light transmission, particularly for ultraviolet rays.

Quartz glass is characterized by high thermal and chemical stability; its softening temperature is 1400°C. It is a good dielectric: specific electrical conductivity at 20°C, 10^-14 to 10^-16 ohm^-1.m^-1; tangent of the dielectric phase angle at 20°C and 10⁶ hertz, 0.0025–0.0006. Quartz glass is used for manufacturing laboratory vessels, crucibles, optical instruments, insulators (particularly for high temperatures), and articles resistant to temperature fluctuations.

P. D. SARKISOV

quartz glass, silica glass

quartersawn Glass consisting entirely of pure, or nearly pure, amorphous silica;

quartz glass

a transparent, colorless crystal, made by fusing pure quartz sand, which transmits ultraviolet light.

quartz glass

Crystalline quartz used for prisms and lenses; fused quartz used for windows, through which ultraviolet radiations are freely transmitted.See also: quartz

quartz glass

A glass of pure silica, transparent to ultraviolet light.

quartz glass

quartz glass

quartz glass

quartz′ glass`

Quartz Glass

Quartz Glass

quartz glass, silica glass

quartz glass

quartz glass

quartz glass

quartz glass

quartz glass

Synonyms for quartz glass

noun colorless glass made of almost pure silica

Synonyms

Related Words