Patent ID: 9187377
Filing Date: 2015-11-17
Classification: C04B,Y02P

Abstract:
1. A process for forming an aluminosilicate article comprising an aluminosilicate base material and an additive material, the process comprising the steps of: optimally fusing the aluminosilicate base material at a first temperature to 50% to 85% of total fusing of the aluminosilicate base material, wherein the first temperature is an optimal fusing temperature (OFT), which is a temperature determined by: i) preparing a sample of the aliminosilicate base material by sizing to less than a 200 mesh; ii) placing 25 grams of the sample in a dish; iii) heating the sample to a high temperature to melt completely; iv) lowering the temperature stepwise in subsequent tests with fresh aluminosilicate base material until the material fuses into a structurally strong mass, with minimal shrinkage, wherein the temperature that generates the structurally strong mass is the optimal fusing temperature; melting the additive material at a second temperature higher than the first temperature; and cooling the article.