Quartz fiber

Quartz fibers are silicate fibers and threads made from high-purity (99.99%) quartz , similar to glass fibers . They belong to the family of amorphous silicate glass fibers, and this also includes silica fibers .

Properties / use

The density is 2.2 g / cm ³ , the tensile strength is 3.3-3.7 GPa or higher and have a high modulus of elasticity , they have practically no thermal expansion coefficient , it is only  0.54, they have very high chemical resistance and are very temperature resistant. The fibers are a good insulator and have very good dielectric properties. ${\displaystyle \alpha }$

Quartz fiber is used in thermal insulation material , but also in aerospace. The fibers are installed in measuring devices as well as in filters and filter papers e.g. B. for laser-induced plasma spectroscopy or in other laser applications. Quartz fibers are used in certain applications as a substitute for asbestos .

The production is complex because of the high melting point of quartz, so that other rock fibers such as. B. basalt are preferred.

Web links

• Optical quartz fibers at materialarchiv.ch, accessed on March 3, 2017.
• Competition for glass fibers: quartz fiber in a plastic jacket. On: Wissenschaft.de of March 7, 2002.

literature

• Helmut Schürmann: Constructing with fiber-plastic composites. 2nd edition, Springer, 2007, ISBN 978-3-540-72190-1 , pp. 54 f.

Individual evidence

1. ↑ ^{a b} AVK - Industrial Association Reinforced Ku: Handbook fiber composite plastics / composites. 4th edition, Springer, 2014, ISBN 978-3-658-02755-1 , pp. 159 ff.
2. ^ Hans Joachim Eichler, Jürgen Eichle: Laser. 8th edition, Springer, 2015, ISBN 978-3-642-41438-1 , p. 251.
3. ↑ Richard Neuhauser: Applications of laser-induced plasma spectroscopy (LIPS) in the industrial monitoring of heavy metal aerosol emissions. Herbert Utz Verlag, 1999, ISBN 978-3-89675-550-6 , p. 78.
4. ↑ The new pocket dictionary. 1992 edition, Volume 13, Bertelsmann Lexikon Verlag, ISBN 3-570-04219-7 .