摘要
本文报道了低温下(77K)氮气在 Vycor 多孔玻璃中吸附等温线的测量工作,并引用BET 理论对实验结果进行了分析与处理,得出了材料的吸附表面积、内孔体积比以及平均吸附孔半径(即 BET 半径)等一系列物理和几何参数。得到的吸附等温线分为三个不同区域:低压区等温线对压力轴呈凹形,高压区呈凸形,中间部分近似为直线。
In this paper, the nitrogen isotherms were measured in detail to permit evaluation of the material's parameters, the internal areas, volumes and mean radii.In present work we accept the BET theory as a valid method for calculating our porous parameters above.The isotherm was devided into three different sections , at low pressure it is concave, at high pressure it is convex and the middle section it is nearly linear.
出处
《低温与超导》
CAS
CSCD
北大核心
1989年第1期7-11,共5页
Cryogenics and Superconductivity
