<報文>溶融ジルコニウムの窒素吸収

概要

論文の詳細を見る
Experimental study was conducted on the solubility of nitrogen in liquid zirconium by means of the levitation-melting technique. The specimen was melted in the flow of N_2-Ar gas mixture having nitrogen partial pressure at an order of 10^<-4> atm. The molten specimen was qucnched into a water-cooled copper mould after a specified time of melting. Then, the specimen was analysed by Kjeldahl method to determine the nitrogen content. The results of this investigation suggested that the absorption rate of nitrogen by liquid zirconium increased directly proporitional to the numbers of nitrogen molecule collieded with metal surface of the specimen. It was found that the nitrogen contents of the liquidus line of zirconium nitride in the measured temperature range, 2000 to 2700℃, was deviated to smaller side than that estimated by Domagala et al. These results were explained by using a statistical thermodynamic model.
東北大学の論文
1973-11-24