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glass batch formulation

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glman

Chemical
Mar 20, 2003
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I am looking for a borosilicate batch formulation with a mid-range thermal expansion (~40-50) that can be melted below 2700 F.
 
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dear glman,
try out this composition SiO2-72%,Al2O31.5%,B2O3;-14%,Na2O:-7%, CaO:-5%
Hope you will be able to back calculate to your raw materials. this composition should melt in 1450 deg centigrade. Alpha value will be between 50 to 55
Regards
Chatterjee
 
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