<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kullberg, A.T.G.</style></author><author><style face="normal" font="default" size="100%">Lopes, A.A.S.</style></author><author><style face="normal" font="default" size="100%">Veiga, J.P.B.</style></author><author><style face="normal" font="default" size="100%">Monteiro, R.C.C.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Crystal growth in zinc borosilicate glasses</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Crystal Growth</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Borosilicate glass</style></keyword><keyword><style  face="normal" font="default" size="100%">Crystal growth</style></keyword><keyword><style  face="normal" font="default" size="100%">Crystal morphologies</style></keyword><keyword><style  face="normal" font="default" size="100%">Crystallite size</style></keyword><keyword><style  face="normal" font="default" size="100%">Differential thermal analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Glass ceramics</style></keyword><keyword><style  face="normal" font="default" size="100%">Glass compositions</style></keyword><keyword><style  face="normal" font="default" size="100%">Growth from melts</style></keyword><keyword><style  face="normal" font="default" size="100%">Heat treatment</style></keyword><keyword><style  face="normal" font="default" size="100%">Heat treatment conditions</style></keyword><keyword><style  face="normal" font="default" size="100%">Melt quenching techniques</style></keyword><keyword><style  face="normal" font="default" size="100%">Scanning electron microscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">Specific heat</style></keyword><keyword><style  face="normal" font="default" size="100%">Thermoanalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Transparent nanocomposites</style></keyword><keyword><style  face="normal" font="default" size="100%">Ultraviolet visible spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">UV-vis spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">X ray diffraction</style></keyword><keyword><style  face="normal" font="default" size="100%">Zinc</style></keyword><keyword><style  face="normal" font="default" size="100%">Zinc borosilicate glass</style></keyword><keyword><style  face="normal" font="default" size="100%">Zinc compounds</style></keyword><keyword><style  face="normal" font="default" size="100%">Zinc oxide</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2016</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979663984&amp;doi=10.1016%2fj.jcrysgro.2016.07.022&amp;partnerID=40&amp;md5=52e08ac03a5bd06f970d730c5ae2192d</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">Elsevier</style></publisher><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Glass samples with a molar composition (64+x)ZnO-(16-x)B2O3-20SiO2, where x=0 or 1, were successfully synthesized using a melt-quenching technique. Based on differential thermal analysis data, the produced glass samples were submitted to controlled heat-treatments at selected temperatures (610, 615 and 620°C) during various times ranging from 8 to 30h. The crystallization of willemite (Zn2SiO4) within the glass matrix was confirmed by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). Under specific heat-treatment conditions, transparent nanocomposite glass-ceramics were obtained, as confirmed by UV-vis spectroscopy. The influence of temperature, holding time and glass composition on crystal growth was investigated. The mean crystallite size was determined by image analysis on SEM micrographs. The results indicated an increase on the crystallite size and density with time and temperature. The change of crystallite size with time for the heat-treatments at 615 and 620°C depended on the glass composition. Under fixed heat-treatment conditions, the crystallite density was comparatively higher for the glass composition with higher ZnO content. © 2016.</style></abstract><notes><style face="normal" font="default" size="100%">cited By 0; Article in Press</style></notes></record></records></xml>