Transparent ceramics prepared from ultrapure magnesium aluminate spinel nanopowders by spark plasma sintering
- Авторы: Alekseev M.K.1, Kulikova G.I.1, Rusin M.Y.1, Savanina N.N.1, Balabanov S.S.2,3, Belyaev A.V.2,3, Gavrishchuk E.M.2,3, Ivanov A.V.4, Rizakhanov R.N.4
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Учреждения:
- Tekhnologiya Obninsk Research and Production Enterprise
- Devyatykh Institute of Chemistry of High-Purity Substances
- Lobachevsky State University (National State University)
- Keldysh Research Center
- Выпуск: Том 52, № 3 (2016)
- Страницы: 324-330
- Раздел: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/157419
- DOI: https://doi.org/10.1134/S002016851603002X
- ID: 157419
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Аннотация
We have studied the properties of transparent magnesium aluminate spinel ceramics prepared by spark plasma sintering (SPS) of ultrapure nanopowders. The starting powders, of ≃ 99.98% purity, ranging in specific surface area from 30 to 160 m2/g, were prepared through the hydrolysis of alcoholic solutions of magnesium aluminum alkoxide complexes, followed by calcination at temperatures from 900 to 1100°C. SPS was carried out at 1450°C, with the holding time at the highest temperature not longer than 15 min. The transparent ceramic samples thus prepared have a transmission of up to 73% in the visible and IR spectral regions (λ = 2.5–5.0 µm). The crystallite size in the ceramics is 0.2–0.4 µm, and their microhardness is HV0.1 = 14.8–16.2 GPa.
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Об авторах
M. Alekseev
Tekhnologiya Obninsk Research and Production Enterprise
Email: balabanov@ihps.nnov.ru
Россия, Kievskoe sh. 15, Obninsk, Kaluga oblast, 249034
G. Kulikova
Tekhnologiya Obninsk Research and Production Enterprise
Email: balabanov@ihps.nnov.ru
Россия, Kievskoe sh. 15, Obninsk, Kaluga oblast, 249034
M. Rusin
Tekhnologiya Obninsk Research and Production Enterprise
Email: balabanov@ihps.nnov.ru
Россия, Kievskoe sh. 15, Obninsk, Kaluga oblast, 249034
N. Savanina
Tekhnologiya Obninsk Research and Production Enterprise
Email: balabanov@ihps.nnov.ru
Россия, Kievskoe sh. 15, Obninsk, Kaluga oblast, 249034
S. Balabanov
Devyatykh Institute of Chemistry of High-Purity Substances; Lobachevsky State University (National State University)
Автор, ответственный за переписку.
Email: balabanov@ihps.nnov.ru
Россия, ul. Tropinina 49, Nizhny Novgorod, 603950; pr. Gagarina 23, Nizhny Novgorod, 603950
A. Belyaev
Devyatykh Institute of Chemistry of High-Purity Substances; Lobachevsky State University (National State University)
Email: balabanov@ihps.nnov.ru
Россия, ul. Tropinina 49, Nizhny Novgorod, 603950; pr. Gagarina 23, Nizhny Novgorod, 603950
E. Gavrishchuk
Devyatykh Institute of Chemistry of High-Purity Substances; Lobachevsky State University (National State University)
Email: balabanov@ihps.nnov.ru
Россия, ul. Tropinina 49, Nizhny Novgorod, 603950; pr. Gagarina 23, Nizhny Novgorod, 603950
A. Ivanov
Keldysh Research Center
Email: balabanov@ihps.nnov.ru
Россия, Onezhskaya ul. 8, Moscow, 125438
R. Rizakhanov
Keldysh Research Center
Email: balabanov@ihps.nnov.ru
Россия, Onezhskaya ul. 8, Moscow, 125438
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