Solid solution (V/sub 1-x/Cr/sub x/)/sub 2/O/sub 3/ as material for solid-state opening switches

Author

Kudasov, Yuri B. ; Makarov, Igor V. ; Zenkov, D.I. ; Monakhov, M.P. ; Orlikova, E.G. ; Popov, V.N. ; Rachkovsky, A.I. ; Sadovoj, A.S. ; Filippov, Alexey V. ; Ptitsin, B.G. ; Letyagin, V.A.

fYear

2001

fDate

17-22 June 2001

Firstpage

420

Abstract

Summary form only given, as follows. Solid solutions (V/sub 1-x/Cr/sub x/)/sub 2/O/sub 3/ undergo a metal-insulator phase transition at above-room temperatures. This material has high conductivity in the metal phase. That is why (V/sub 1-x/Cr/sub x/)/sub 2/O/sub 3/ is a promising material for high-current solid-state opening switches. Different technologies of ceramic sample fabrication for a solid solution (V/sub 1-x/Cr/sub x/)/sub 2/O/sub 3/ are studied. It is shown that it is possible to make high-quality samples up to several cm/sup 3/ in volume. The porosity and strength of the samples obtained are estimated. Temperature dependencies of conductivity and magnetoresistance of the ceramic samples are studied in the vicinity of the phase transition. The technology of contact fabrication on ceramic samples is investigated.

Keywords

ceramics; chromium compounds; electrical contacts; magnetoresistance; mechanical strength; metal-insulator transition; porosity; semiconductor switches; vanadium compounds; (V/sub 1-x/Cr/sub x/)/sub 2/O/sub 3/; above-room temperatures; ceramic sample fabrication; ceramic samples; conductivity; contact fabrication; high-current solid-state opening switches; high-quality samples; magnetoresistance; metal-insulator phase transition; phase transition; porosity; solid solution; solid-state opening switches; strength; temperature dependencies; Ceramics; Chromium; Conducting materials; Conductivity; Fabrication; Inorganic materials; Metal-insulator structures; Solid state circuits; Switches; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulsed Power Plasma Science, 2001. IEEE Conference Record - Abstracts

Conference_Location

Las Vegas, NV, USA

Print_ISBN

0-7803-7141-0

Type

conf

DOI

10.1109/PPPS.2001.961164

Filename

961164