Chemical Engineering

Crystals in Glass: A Hidden Beauty by E. D. Zanotto

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By E. D. Zanotto

A "must-have" for fabrics engineers, chemists, physicists, and geologists, this is often one of many first "coffee-table" books within the box of glass science.

Containing over fifty attractive micrographs, the ebook displays 35 years of unique examine through a extremely popular authority within the box. It includes 50 slides culled from tens of millions of pictures on glass crystal nucleation, development, and crystallization. the photographs signify glass crystallization mechanisms, together with inner, floor, homogeneous, heterogeneous, and eutectic, crystal nucleation and growth.

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Crystals in Glass: A Hidden Beauty

A "must-have" for fabrics engineers, chemists, physicists, and geologists, this is often one of many first "coffee-table" books within the box of glass technological know-how. Containing over fifty attractive micrographs, the booklet displays 35 years of unique learn by means of a extremely popular authority within the box. It includes 50 slides culled from tens of hundreds of thousands of pictures on glass crystal nucleation, progress, and crystallization.

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074. 2SiO2 crystals growing in an isochemical glass are spherulitic; that is, they have a residual glass phase embedded within the fine crystal branches of the spherical crystallike regions. XRD experiments demonstrated for the first time that each region is only about 65% crystalline; that is, they are spherulitic. Thus, spherulites can indeed nucleate and grow in inorganic glasses; not only in polymers, as previously thought. Optical microscopy, transmitted light. Sheffield University (UK) and LaMaV (UFSCar) Ed Zanotto (1980) Zanotto ED and James PF.

Journal of Non-Crystalline Solids. 2003; 331(1–3): 240–253. 074. Fokin VM, Potapov OV, Chinaglia CR and Zanotto ED. The effect of pre-existing crystals on the crystallization kinetics of a soda-lime-silica glass: The courtyard phenomenon. Journal of Non-Crystalline Solids. 1999; 258(1):180–186. 1016/S00223093(99)00417-2. 3SiO2 crystals in the volume of a 1soda-2lime-3silica stoichiometric glass. The larger crystals were produced by a first heat treatment (T1) and the smaller in a second treatment (T2 < T1).

046. indd 15 6/4/2013 4:09:37 PM Lithium Diborate Crystals in an Isochemical Glass Lithium diborate glass shows internal nucleation without the aid of nucleating agents, and several crystal morphologies can appear depending on the heat treatment. 2B2O3 crystals of about 50 μm develop. Optical microscopy, polarized transmitted light. LaMaV (UFSCar) Lu Ghussn (2008) and Dani Cassar (2011) Ghussn L. Post Doctoral Report Submitted to FAPESP (2008). Supervisor: Zanotto, E. D. 2SiO2) glass. This micrograph shows a very rare case (the only one ever reported) of a diopside crystal in the interior of a diopside glass.

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