簡易ガス吸着法による金属粉末の比表面積の測定

抄録

This article gives a description of a modification of the standard Brunaner-Emmett-Teller (BET) method for the determination of the surface area of metal powders. The modified procedure involves the use of CO₂ as adsorbate, the determination of adsorption isotherm from three measured points and other simplifications. The use of CO₂ for tungsten and molybdenum powders seems to give just as satisfactory results as in the case of conventional N₂. It is shown that values within 2% of those by the standard method using CO₂ are obtained by this simplified procedure One sample can be measured in about 1.5 hr with the result reproducible within 2%.