Zobrazeno 1 - 10
of 65
pro vyhledávání: '"M. A. Ryumin"'
Autor:
P. G. Gagarin, A. V. Gus’kov, V. N. Gus’kov, O. N. Kondrat’eva, G. E. Nikiforova, K. I. Pechkovskaya, M. A. Ryumin, A. V. Tyurin, A. V. Khoroshilov, N. N. Efimov, K. S. Gavrichev
Publikováno v:
Russian Journal of Inorganic Chemistry. 67:1803-1812
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e20b55eb8c722c7033e274e41ac09392
https://doi.org/10.1134/s0036023622601015
https://doi.org/10.1134/s0036023622601015
Autor:
K. I. Pechkovskaya, G. E. Nikiforova, A. V. Tyurin, O. N. Kondrat’eva, A. V. Gus’kov, M. A. Ryumin
Publikováno v:
Russian Journal of Inorganic Chemistry. 67:472-478
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bd53fb16fc0674cf315566da1681d48
https://doi.org/10.1134/s0036023622040155
https://doi.org/10.1134/s0036023622040155
Autor:
Andrey V. Khoroshilov, K. S. Gavrichev, M. A. Ryumin, O. N. Kondrat’eva, G. E. Nikiforova, A. V. Tyurin
Publikováno v:
Russian Journal of Inorganic Chemistry. 66:237-244
The heat capacity of polycrystalline neodymium orthoniobate NdNbO4 in the range 2–1370 K is studied by relaxation, adiabatic, and differential scanning calorimetry. The existence of a magnetic transformation with a Neel temperature below 2 K in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f71a28aaf875de8811603239eeabb44
https://doi.org/10.1134/s0036023621020145
https://doi.org/10.1134/s0036023621020145
Autor:
A. V. Guskov, E. G. Sazonov, L. H. Baldaev, V. N. Guskov, P. G. Gagarin, K. S. Gavrichev, M. A. Ryumin, A. V. Tyurin
Publikováno v:
Russian Journal of Inorganic Chemistry. 65:1873-1878
Monoclinic M-type europium orthotantalate was obtained by co-precipitation and annealing at ~1673 K and characterized by X-ray powder diffraction, scanning electron microscopy, and chemical analysis. The temperature dependence of molar heat capacity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da3608c17819997db9df502f73a8a42e
https://doi.org/10.1134/s0036023620120037
https://doi.org/10.1134/s0036023620120037
Investigation of Phase Formation and Luminescence in Na3REE(PO4)2–Na3REE(VO4)2 (REE = Gd, Y) Systems
Publikováno v:
Russian Journal of Physical Chemistry A. 94:2648-2653
The phase formation in Na3REE(PO4)2–Na3REE(VO4)2 (REE = Gd, Y) systems in the 873–1573 K temperature range was investigated by XRD and DSC methods. Formation of two solid solutions based on both compounds was revealed. Endothermic effects corresp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8719299486befd855841ff049a56092
https://doi.org/10.1134/s0036024420130221
https://doi.org/10.1134/s0036024420130221
Publikováno v:
Russian Journal of Inorganic Chemistry. 65:655-662
The molar heat capacity of М-type terbium orthotantalate was measured by adiabatic calorimetry in the range 18–346 K. Smoothed heat capacity values were used to calculate the entropy, enthalpy gain, and reduced Gibbs free energy. The Schottky anom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8adb0c55ad2d8c9c18254ad24a9f67f
https://doi.org/10.1134/s0036023620050083
https://doi.org/10.1134/s0036023620050083
Autor:
K. I. Bryukhanova, K. S. Gavrichev, M. A. Ryumin, A. V. Tyurin, G. E. Nikiforova, Andrey V. Khoroshilov
Publikováno v:
Russian Journal of Inorganic Chemistry. 65:688-694
The heat capacity of polycrystalline dysprosium orthoniobate was studied over a wide temperature range by three calorimetric methods: relaxation calorimetry (2–50 K), adiabatic calorimetry (9–350 K), and differential scanning calorimetry (308–1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9037628a085a6f799a2f07d7bdbcc8d7
https://doi.org/10.1134/s0036023620050186
https://doi.org/10.1134/s0036023620050186
Autor:
A. V. Guskov, Andrey V. Khoroshilov, K. S. Gavrichev, M. A. Ryumin, O. N. Kondrat’eva, V. N. Guskov
Publikováno v:
Ceramics International. 46:5402-5406
The synthesis of M′-YbTaO4 ceramics was carried out by co-precipitation and calcination at 1700 K; phase and chemical purity were confirmed by XDA, XPS, and chemical analysis. The thermal expansion of the crystal lattice was determined by high-temp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a496269e6f5a2a03c4294dc85b2012ff
https://doi.org/10.1016/j.ceramint.2019.10.296
https://doi.org/10.1016/j.ceramint.2019.10.296
Autor:
A. P. Kritskaya, O. N. Kondrat’eva, M. A. Ryumin, K. I. Bryukhanova, G. E. Nikiforova, B.A. Kolozhvari
Publikováno v:
Ceramics International. 46:2576-2579
Solid solution samples of yttrium orthophosphate–yttrium orthovanadate of general formula Y(VO4)1-x(PO4)x (x = 0.25; 0.50; 0.75) were obtained using solid state synthesis. The samples crystallize in zircon structure (I41/amd sp. gr.) as the pure en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc448a37958c6b76217c35a207b88deb
https://doi.org/10.1016/j.ceramint.2019.09.189
https://doi.org/10.1016/j.ceramint.2019.09.189
Autor:
Andrey V. Khoroshilov, V. N. Guskov, G. E. Nikiforova, A. V. Tyurin, O. N. Kondrat’eva, K. S. Gavrichev, M. A. Ryumin
Publikováno v:
Inorganic Materials. 56:97-104
Lanthanum stannate with the pyrochlore structure and a crystallite size in the range 100–400 nm has been prepared by solid-state synthesis. We have optimized synthesis parameters for obtaining a ceramic material. The heat capacity of La2Sn2O7 has b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1dbee1d98dce74c6b7d2ffbe9fbd82e
https://doi.org/10.1134/s0020168520010148
https://doi.org/10.1134/s0020168520010148