A low cost route for fabrication of wollastonite glass-ceramics directly using soda-lime waste glass by reactive crystallization-sintering

作者：Zhang Weiyi^*; Liu He

来源：Ceramics International, 2013, 39(2): 1943-1949.

DOI：10.1016/j.ceramint.2012.08.044

• Sintering
• Crystallization promoter
• Reactive crystallization
• Soda-lime waste glass

Wollastonite glass-ceramics have been fabricated by directly mixing soda-lime waste glass powders with a synthetic crystallization promoter and then sintering, the wollastonite being formed by a reaction between crystallization promoter and glass during sintering. Effects of the crystallization promoter contents and processing parameters on the reactive crystallization behavior, sinterability and properties of glass-ceramics were investigated. The results showed that the level of reactive crystallization was predominantly controlled by temperature, and the sinterability of glass-ceramics deteriorated with increasing content of promoter and temperature. Raising temperature had a considerable influence on strength but less on hardness of glass-ceramics. The best mechanical properties were obtained for the glass-ceramic with 15% crystallization promoter sintered at 850 degrees C for 2 h.

• 出版日期2013-3
• 单位大连交通大学