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Invegtigations of the composite material based on Ba0,5Sr0,5HfO3 with tungsten. Part 2. Surface structure and composition

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Product Description

Electron microscopic investigation results of the surface and near-surface layers composition and structure are presented for the high temperature composition cathode materials based on barium-strontium hafnate with tungsten and different components percentage. Initial structure of that emitters is generally tungsten grains and bariumstrotium hafnate. There is the porous hafnium and hafnium oxide layer on the cathode surface during activation process. The high emission activity of this cathode is caused by barium and strontium adsorption on hafnium (hafnium oxide) which diffuse through the developed pores.

Additional Information

Authors

Абашин С.Л., Кислицын А.П., Комозынский П.А., Орданьян С.С., Таран А.А.

Year of publication

2014

3

Volume

110

Language

Russian

Types of files

pdf

Section

Ion Plasma Technologies and Equipment

Quality

excellent

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