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Tellurite And Fluorotellurite Glasses For Active And Passive

Tellurite And Fluorotellurite Glasses For Active And Passive

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4. Thermal properties and glass stability; MDO 108<br />

Effect of ZnO:ZnF2 ratio on the series 65TeO2.(25-x)ZnO.xZnF2.10Na2O (mol. %), for 0<br />

≤ x ≤ 20<br />

Fig. (4.17) shows DTA traces of glasses MOF009 (65TeO2-10Na2O-20ZnF2-5ZnO mol.<br />

%), MOF010 (65TeO2-10Na2O-15ZnF2-10ZnO mol. %), MOF011 (65TeO2-10Na2O-<br />

10ZnF2-15ZnO mol. %), MOF012 (65TeO2-10Na2O-5ZnF2-20ZnO mol. %) and<br />

MOF013 (65TeO2-10Na2O-25ZnO mol. %). This glass melting series obeys the<br />

composition rule 65TeO2.(25-x)ZnO.xZnF2.10Na2O (mol. %), for 0 ≤ x ≤ 20.<br />

<br />

o C<br />

MOF009<br />

MOF010<br />

MOF011<br />

MOF012<br />

MOF013<br />

200 300 400 500<br />

Temperature / o C<br />

Fig. (4.17): DTA traces of glasses MOF009 (65TeO2-10Na2O-20ZnF2-5ZnO mol. %),<br />

MOF010 (65TeO2-10Na2O-15ZnF2-10ZnO mol. %), MOF011 (65TeO2-10Na2O-10ZnF2-<br />

15ZnO mol. %), MOF012 (65TeO2-10Na2O-5ZnF2-20ZnO mol. %) and MOF013<br />

(65TeO2-10Na2O-25ZnO mol. %).

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