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The chemical composition of glass in Ancient Egypt by Mikey Brass (1999) ... The primary constituent making up the chemical composition of glass is silica (silicon dioxide), which is the most common component of the earth's crust and accounts for 50-70% of the weight of ancient glass (Freestone 1991). The silica is...
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www.antiquityofman.com/AE_glass.html
www.antiquityofman.com/AE_glass.html
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96 percent silica glass resists heat almost as well as fused silica, but it is less expensive to produce. It consists of a special borosilicate composition that has been made porous by chemical treatment. The pores shrink when the glass is heated, leaving a smooth, transparent surface.
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www.texasglass.com/glass_facts/composition_of_Glass.htm
www.texasglass.com/glass_facts/composition_of_Glass.htm
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Crystallization; Coal gasification; Coal ash; X-rays--Diffraction; Electron probe microanalysis; Pyrrhotite; Mullite; Cristobalite ... Coal ash; Lurgi gasification; Glass analysis; Pyrometallurgy; Particle morphology...
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www.up.ac.za/dspace/handle/2263/5464
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The chemical composition of container glass has evolved over many years to become almost generic, providing a material which fits its purpose very well and is a cost effective form of packaging. However the melting of glass is an energy-intensive process which is becoming increasingly expensive. ... * Chemical durability...
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www.allbusiness.com/nonmetallic-mineral/glass-glass-man...
www.allbusiness.com/nonmetallic-mineral/glass-glass-manufacturing/135632-1.html
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The emphasis is put on the effect of the chemical composition of glass. Special at tention is given to boron oxide (B2O 3). A close look at the infrared spectra (on both bulk and fiberized glass) allows us to understand the influence of this oxide on the thermal resistance of fiberglass insulating materials.
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jen.sagepub.com/cgi/content/abstract/18/4/350
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First-order model for durability of Hanford waste glasses as a function of compositionDate: 1992-04-01; ... AEM analyses of SRL 131 glass altered as a function of SA/VDate: 1991-01-01;
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www.energystorm.us/Borosilicate_Glass_Chemical_Composit...
www.energystorm.us/Borosilicate_Glass_Chemical_Composition-k155861-0.html
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Quartz >> Properties >> Chemical Composition ... Vitreous silica is the generic term used to describe all types of silica glass with producers referring to the material as either fused quartz or as fused silica. Originally, these terms were used to distinguish between transparent and opaque grades of the material.
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www.gequartz.com/en/chemical.htm
www.gequartz.com/en/chemical.htm
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Robert Brill of the Corning glass museum has been studying antique glass for over 30 years. He has examined many examples of glass from old buildings, measuring their material properties and chemical composition. He has taken a special interest in the glass flow myth and has always looked for evidence for and against.
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www.weburbia.com/physics/glass.html
www.weburbia.com/physics/glass.html
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Defines glass, how is glass produced, main properties, indicates the different type of glass and what is glass chemical composition by weight ... Depending on the final use and application the composition of the glass and cooling rate will vary to achieve the adequate properties for the specific application.
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www.lenntech.com/glass.htm
www.lenntech.com/glass.htm
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