ABSTRACT

S. YU. TRESCHEV,1 S. P. STAROSTIN,2 S. S. MIKHAYLOVA,1 O. M. KANUNNIKOVA,1 B. E. PUSHKAREV,1 F. Z. GILMUTDINOV,1 M. V. SOBENNIKOVA,1 V. I. LADYANOV,1 and V. P. LEBEDEV2

1Physic-Technical Institute of the Ural Branch of the Russian Academy of Sciences (PhTI UB RAS), Izhevsk, Russia

2Elekond Open Joint-Stock Company, Sarapul, Russia

5.1 Introduction .................................................................................... 66 5.2 Experimental Researches ............................................................... 66 5.3 Results and Discussion .................................................................. 67 5.3.1 Particle Shape and Size ...................................................... 67 5.3.2 Composition of Powder Particles ....................................... 70 5.3.3 Structural and Phase Composition of Powders .................. 73 5.4 Conclusion ..................................................................................... 74 Keywords ................................................................................................ 74 References ............................................................................................... 75

5.1 INTRODUCTION

The finely-divided tantalum powders serve as a basis for production of porous tantalum capacitors, that provide high specific charge, low leak currents, high stability and reliable characteristics. The new-generation capacitors made of materials with high specific surface and controllable properties require essentially new tantalum powders with different specific charge and grain-size properties. The powder evaluation is a necessary stage of a research for better technology of capacitor production.