摘要
叙述了采用液氮真空冷冻升华法(冻干法)干燥微结构测试用粘土样品的基本原理和操作过程、试验前的准备等方面的内容。采用此干燥制样技术使软粘土样品失水后体积不收缩,无结构变化,样品质量可满足微结构研究的精度要求。
The principle and methods of artificially-prepa red samples by freeze-d rying for microstructure analysis are described in this paper. The samples proce ssed by freeze-drying do not shrank in volume and is no change in structure af ter dewatering, and quality of samples is well for microstructure analysis.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
2005年第2期46-48,共3页
Coal Geology & Exploration
关键词
土微结构
冻干法
人工制样
microstructure
freeze-drying
artificially-p repared samples