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Philosophical Magazine Volume 89, 2009 - Issue 19
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Original Articles

Thermal properties of 3BaO–3TiO2–B2O3 glasses

Rahul Vaish Materials Research Centre, Indian Institute of Science, Bangalore, 560 012, India
&
K.B.R. VarmaCorrespondence[email protected]
Pages 1555-1564 | Received 11 Mar 2009, Accepted 06 May 2009, Published online: 19 Jun 2009
 
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Abstract

Transparent glasses in the system 3BaO–3TiO2–B2O3 (BTBO) were fabricated via the conventional melt-quenching technique. The as-quenched samples were confirmed to be non-crystalline by differential thermal analysis (DTA). Thermal parameters were evaluated using non-isothermal DTA experiments. The Kauzmann temperature was found to be 759 K based on heating-rate-dependent glass transition and crystallization temperatures. A theoretical relation for the temperature-dependent viscosity is proposed for these glasses and glass-ceramics.

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