【摘要】 用 XRF和 SEM/EDAX对 (YCa) F3助烧 Al N陶瓷烧结过程中的液相迁移规律进行了研究 ,以 Y、Ca为液相的“示踪元素”,得到烧结不同阶段液相分布的信息。结果表明 ,液相在坯体致密化和 Al N晶粒生长过程的驱动下向坯体表面迁移。更多还原

【Abstract】 SEM/EDAX and XRF were used to study the migration of liquid phases in the low temperature sintering of AlN with (YCa)F 3 as additive Y and Ca were considered as tracer element, which indicated the distribution of liquid phases during the sintering The results show that the liquid phases, drived by the densification of green bodies and the growth of grains, can be migrated towards the surface of the specimen更多还原