Tellurite And Fluorotellurite Glasses For Active And Passive

3. Glass batching and melting; MDO 71
65 × 159.
60
= × 100 = 76.
40%
(3.2)
( 65 × 159.
60)
+ ( 10 × 61.
98)
+ ( 25 × 103.
37)
Thus for 10g of glass 0.7640×10=7.64g of TeO2 was batched. Equation (3.3) shows
the weight % ZnF2:
Wt.%
ZnF2
=
( mol.%
TeO2
× RAM
TeO2
mol.%
) + ( mol.%
ZnF2
Na2O
× RAM
× RAM
ZnF2
Na2O
) + ( mol.%
ZnF2
× RAM
25 × 103.
37
= × 100 = 19.
03%
(3.3)
( 65 × 159.
60)
+ ( 10 × 61.
98)
+ ( 25 × 103.
37)
Thus for 10g of glass 0.1903×10=1.90g of ZnF2 was batched. Equation (3.4) shows
the weight % of Na2O:
Wt.%
Na2
O
=
( mol.%
TeO2
× RAM
TeO2
mol.%
) + ( mol.%
Na2O
Na2O
× RAM
× RAM
Na2O
Na2O
) + ( mol.%
ZnF2
× RAM
10 × 61.
98
= × 100 = 4.
57%
(3.4)
( 65 × 159.
60)
+ ( 10 × 61.
98)
+ ( 25 × 103.
37)
Thus for 10g of glass 0.0457×10×1.71=0.78g of Na2CO3 was batched.
These calculations are summarised in Table (3.4).
ZnF2
ZnF2
× 100
)
× 100
)