Main Abstracts Selected from Naihuo Cailiao ( Refractories)——A Chinese Language Bimonthly

摘要

Volume 46,Number 4,2012Effects of composite additives on crystallization behavior of fused quartz ceramics/Bu Jinglong,Shen Shubin,Yu Lixue,Wang Zhifa//Naihuo Cailiao.-2012,46(4):241 Abstract:Fused quartz ceramics were prepared using fused quartz powder(≤0.10mm)as main starting material,B4C-Yb2O3 or Si3N4-Nd2O3 with 1:1 of mass ratio as composite additives with dosages of separate 1%(in mass,similarly hereinafter),2% and 3%of fused quartz ceramics powder mass,polyvinyl alcohol as binder,mixing,shaping,drying,and graphite-embedded firing at 1300,1350 and 1400℃ for 1h,respectively.The thermal expansion test from ambient temperature to 1200℃ and XRD