Float glass has a perfectly flat, brilliant surface, whereas sheet glass has slight distortions. The additional three digits indicate the density of the glass. Please click on the glass type families in the graph below to access pdf data sheets for individual glass types. We have listed the strain point, annealing point, softening. Mechanical properties of silicate glasses as a function of composition. Glass is a noncrystalline, often transparent amorphous solid, that has widespread practical. Optical properties glass type nd nd density glass code nsf6 1. Bulk optical properties history of optical science parallels the history of optical glass development. The spectral properties of the base and ionically colored optical filter glasses are nearly constant within the individual melts. The first three digits reflect the refractive index nd, the second three digits the abbe value nd. The refractive, reflective and transmission properties of glass make glass. Leading manufacturer of precision optical glass, glass ceramics, and polished substrates for over 70 years. Mechanical properties of glass fiber reinforced polymers.
Elastic modulus of a range of glass compositions as a function of temperature elastic modulus is the stiffness of the glass, an important engineering property. They exhibit useful bulk properties such as hardness, transparency, resistance to chemical attack, sta bility, and inertness, as well as desirable. Silicate glasses are an exception elastic constants for glasses and glass ceramics code type e gpa g gpa 9606 glass ceramic 17. There is increasing interest in developing high strength glass that could be used to produce significantly lighter glass products and which would offer the possibility. Theoretical strength, practical strength, pdf transformer 2 0 pro download fatigue, flaws.
Both are referred as normal annealed glass and can be processed to obtain many different varieties of glass for use in buildings. Generally, the stiffness decreases with temperature. Thermal properties are essential to processing optical glass for annealing, heat treatment and coating. What links here related changes upload file special pages permanent link. Materials to alter its physical properties solar factor, emissivity, colour, light. A note on the scientists definition of glass corning museum of. Catalog data excel format 5 decimal, august 20, 2019, excel file. Based on slight deviations in the properties and pureness of the raw materials and batch composition, deviations.
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