RESEARCH IN THE AREA OF PREPARING MATERIALS BASED ON FUZED QUARTZ HCBS. PART 8. EFFECT OF ALKALI ADDITIONS ON CERAMIC SINTERING AND CRISTOBALITIZATION IN A NONISOTHERMAL HEATING REGIME

摘要

Results are provided for a study of the effect of alkali additions based on dispersed silicate lump (sodium metasilicate) on quartz ceramic sintering and cristobalitization in a nonisothermal heating regime in a high-temperature dilatometer. Depending on additive content the difference in initial sintering temperature reaches 300 degrees C, and for the initial stage of cristobalitization it reaches 400 degrees C.