Thermal studies of ZnO-B2O3-P2O5-TeO2 glasses

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F12%3A39894809" target="_blank" >RIV/00216275:25310/12:39894809 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s10973-011-1535-4" target="_blank" >http://dx.doi.org/10.1007/s10973-011-1535-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10973-011-1535-4" target="_blank" >10.1007/s10973-011-1535-4</a>

Result language
angličtina
Original language name
Thermal studies of ZnO-B2O3-P2O5-TeO2 glasses
Original language description
The effect of TeO2 additions on the thermal behaviour of zinc borophosphate glasses were studied in the compositional series (100 - x)[0.5ZnO-0.1B2O3-0.4P2O5]-xTeO2 by differential scanning calorimetry, thermodilatometry and heating microscopy thermal analysis. The addition of TeO2 to the starting borophosphate glass resulted in a linear increase of glass transition temperature and dilatometric softening temperature, whereas the thermal expansion coefficient decreased. Most of glasses crystallize underheating within the temperature range of 440-640 degrees C. The crystallization temperature steeply decreases with increasing TeO2 content. The lowest tendency towards crystallization was observed for the glasses containing 50 and 60 mol% TeO2. X-ray diffraction analysis showed that major compounds formed by annealing of the glasses were Zn2P2O7, BPO4 and alpha-TeO2. Annealing of the powdered 50ZnO-10B2O3-40P2O5 glass leads at first to the formation of an unknown crystalline phase, which
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JH - Ceramics, fire-proof materials and glass
OECD FORD branch
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Project
<a href="/en/project/GAP106%2F10%2F0283" target="_blank" >GAP106/10/0283: Ternary phosphate glasses doped with transition metal oxides for optoelectronic applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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