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Glass may be blown, bent, cut, molded, or formed into many sizes and shapes. It is commonly used in chemistry, biology, and analytical laboratories. Many laboratories have training programs to demonstrate how glassware is used and to alert first–time users to the safety hazards involved with using glassware.
A watch glass is a circular concave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance, and as a cover for a beaker. When used to cover beakers, the purpose is generally to prevent dust or other particles from entering the beaker; the watch glass does ...
Vitrification is the progressive partial fusion of a clay, or of a body, as a result of a firing process.As vitrification proceeds, the proportion of glassy bond increases and the apparent porosity of the fired product becomes progressively lower.
Non-oxide glasses (1 C, 9 P) Pages in category "Glass compositions" The following 53 pages are in this category, out of 53 total.
Praseodymium-doped glass, called didymium glass, turns yellow and is used in welding goggles because it blocks infrared radiation. Praseodymium(III) oxide is also used to color glass and ceramics yellow. [3] For coloring ceramics, also the very dark brown mixed-valence compound praseodymium(III,IV) oxide, Pr 6 O 11, is used.
Oxycarbide glass, also referred to as silicon oxycarbide, is a type of glass that contains oxygen and carbon in addition to silicon dioxide. [1] It is created by substituting some oxygen atoms with carbon atoms.
Ludwig-Musser makes a line of acrylic drums called Vistalites, well known as being used by Led Zeppelin drummer John Bonham. Artificial nails in the "acrylic" type often include PMMA powder. [53] Some modern briar, and occasionally meerschaum, tobacco pipes sport stems made of Lucite. PMMA technology is utilized in roofing and waterproofing ...
The tendency for a material to form a glass while quenched is called glass-forming ability. This ability can be predicted by the rigidity theory . [ 13 ] Generally, a glass exists in a structurally metastable state with respect to its crystalline form, although in certain circumstances, for example in atactic polymers, there is no crystalline ...