Electron irradiation controlled profile of recombination center concentration in silicon

It is shown that the axial distribution of the recombination center concentration in high-voltage silicon p ⁺ Nn ⁺ diodes can be controlled by electron irradiation in a certain energy range. Results of investigations of the main static and dynamic characteristics of electron-irradiated diodes are presented.     

Crack resistance of automatic coupling casings of railroad freight cars

All-Union Research Institute of Railroad Transport, Moscow. Translated from Problemy Prochnosti, No. 3, pp. 41–43, March, 1988.     

Vion chemisorptive fibers — Materials for concentrating uranium ions and noble-metal ions from slightly mineralized natural waters

Conclusions -- Vion chemisorbents make it possible to obtain concentrates of uranium and certain noble metals from weakly mineralized swamp waters having a concentration of these metals which is several orders of magnitude lower.-- This affords the possibility of using Vion chemisorbents to detect industrial accumulations of the indicate elements under the conditions of swamps or of regions close to them.Translated from Khimicheskie Volokna, No. 2, pp. 31–32, March–April, 1993.     

Effect of Plastic Deformation on the Structure and Properties of High-Nitrogen Alloys of the Fe – Cr System

The structure, strength, and ductility of alloys of the Fe – Cr – N system bearing from 15 to 24% chromium and from 0.4 to 1.3% nitrogen are studied after rolling at 20, 450, 800, 900, 1000, 1100, and 1200°C. It is shown that the highest hardening due to cold plastic deformation is provided in alloys with metastable -solid solution that undergoes transformation into strain martensite ( ). In hot plastic deformation the alloys are hardened due to the formation of a fragmented structure. The data of electron microscopic studies are used to determine the role of the phase composition in the hardening of the alloys.