Effect of ultrarapid quenching on the structure and mechanical properties of Nb2O5 and Ta2O5


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Abstract

We have studied the detailed structure and mechanical properties of the Nb2O5 and Ta2O5 pentoxides after ultrarapid quenching in comparison with the properties of Nb2O5 and Ta2O5 ceramics prepared by a conventional ceramic processing technique and using high-intensity light (HIL) in an optical furnace. The results demonstrate that high-energy processing (HIL and ultrarapid quenching) improves the hardness and strength of Nb2O5 and Ta2O5. At the same time, HIL processing and quenching lead to structural disordering of the Nb2O5 and Ta2O5 pentoxides.

About the authors

O. B. Shcherbina

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center

Author for correspondence.
Email: shcerbina@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

M. N. Palatnikov

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center

Email: shcerbina@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

V. V. Efremov

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center

Email: shcerbina@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

A. A. Yanichev

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center

Email: shcerbina@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

N. V. Sidorov

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center

Email: shcerbina@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

V. V. Pasechnyi

Frantsevich Institute of Materials Science Problems

Email: shcerbina@chemy.kolasc.net.ru
Ukraine, vul. Krzhizhanovskogo 3, Kyiv, 03142

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