Results 231 to 240 of about 6,161 (262)

Formation of a solid solution in the MgSiO3–MnSiO3 perovskite system

Physics and Chemistry of Minerals, 2013
Experiments using laser-heated diamond anvil cells combined with synchrotron X-ray diffraction and SEM–EDS chemical analyses have confirmed the existence of a complete solid solution in the MgSiO3–MnSiO3 perovskite system at high pressure and high temperature.
Lin Li, Takaya Nagai, Tomoki Ishido, Satoko Motai, Kiyoshi Fujino, Shoichi Itoh   +5 more
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Magnetic exchange interactions in perovskite solid solutions. Part 3. Tin-119 Mössbauer spectra of doped iron perovskite solid solutions

J. Chem. Soc., Dalton Trans., 1983
A detailed study has been made of supertransferred hyperfine field (s.t.h.f.) effects at 119Sn doped into various perovskites with the formula (A0.95Ca0.05)(Fe0.85M0.10Sn0.05)O3 with A = La, Eu, or Lu and M = Al, Ga, Sc, Cr, Mn, Co, or Ni. The observed s.t.h.f.
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Planar Defects and Incommensurate Phases in Highly Ordered Perovskite Solid Solutions

Physical Review Letters, 2002
A first-principles-derived approach is used to study the effects of planar defects on structural properties of a rocksalt-ordered Pb(Sc0.5Nb0.5)O3 alloy. These defects lead to unusual features, including a less symmetrical ground state with respect to the perfectly ordered material.
Igor A, Kornev, L, Bellaiche
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Oxyhydrides of (Ca,Sr,Ba)TiO₃ Perovskite Solid Solutions

Inorganic Chemistry, 2012
The oxyhydride solid solutions (Ca,Sr)TiO(3-x)H(x) and (Sr,Ba)TiO(3-x)H(x) have been prepared by reducing the corresponding ATiO(3) oxides with calcium hydride. Under the reaction conditions examined, a hydride content of x = 0.1-0.3 was obtained for all compositions. Compared to our previous result with BaTiO(3-x)H(x), the larger particle size in this
Tatsunori Sakaguchi, Yoji Kobayashi, Takeshi Yajima, Masatoshi Ohkura, Cédric Tassel, Fumitaka Takeiri, Shingo Mitsuoka, Hiroshi Ohkubo, Takafumi Yamamoto, Jung eun Kim, Naruki Tsuji, Akihiko Fujihara, Yoshitaka Matsushita, James Hester, Maxim Avdeev, Kenji Ohoyama, Hiroshi Kageyama   +16 more
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Electrophysical properties of perovskite solid solutions in the system CaTiO3−La2O3

Refractories and Industrial Ceramics, 1998
The electrophysical properties of perovskite solid solutions in the system CaTiO3−La2O3 were investigated in the La2O3 concentration range of 0–40%. The composition dependences of permittivity, loss tangent, volume resistivity, and temperature coefficient of capacitance were plotted.
V. I. Strakhov, A. P. Pivovarova, V. A. Saltykova, O. V. Mel’nikova, N. E. Semenov   +4 more
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Microheterogeneous Solid Solutions in Perovskites: Formation, Microstructure, and Catalytic Activity

ChemInform, 2004
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
L. A. Isupova, S. V. Tsybulya, G. N. Kryukova, V. A. Rogov, I. S. Yakovleva, V. A. Sadykov   +5 more
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Phase Transitions in Perovskite Solid Solutions with Incipient Ferroelectrics

Ferroelectrics, 2004
The impurity-induced ferroelectric phase transitions in incipient perovskite ferroelectrics are discussed along with improper ferroelastic phase transitions. It is shown that the critical concentration of impurities is proportional to 1/ϵ3/2 and that the ferroelectric phase transitions probably suppress ferroelastic transitions.
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Mössbauer Studies of BiFeO3-PbTiO3 Perovskite-Type Solid Solutions

Journal of Applied Physics, 1971
The Mössbauer spectra of the ferroelectric solid solutions (BiFeO3)x(PbTiO3)1−x have been studied as a function of temperature, mainly between room temperature and 600°C, using 57Fe in the solutions as an absorber. The quadrupole splitting increased and the isomer shift decreased between x=0.05 and x=0.70, a range in which the solutions are tetragonal ...
C. M. Yagnik, R. Gerson, W. J. James
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Solid solution range of boron and properties of the perovskite-type NdRh3B

Journal of Alloys and Compounds, 2002
Abstract Polycrystalline samples of NdRh 3 B x have been synthesized by arc melting technique. The crystal structure of NdRh 3 B x is the perovskite-type cubic system (space group Pm 3 m ) for nominal boron concentration in the range of 0.706≤ x ≤1.000 (15–20 mol.% B). The lattice parameter a varies linearly from 0.41749(7) nm ( x =0.706)
Toetsu Shishido, Takahiko Sasaki, Kunio Kudou, Shigeru Okada, Akira Yoshikawa, Jung Min Ko, Jinhua Ye, Iwami Higashi, Masaoki Oku, Hiroyuki Horiuchi, Tsuguo Fukuda, Shigemi Kohiki, Kazuo Nakajima   +12 more
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Investigations on magnetically diluted KNixMg1–xF3 perovskite solid solution

Physica Status Solidi (a), 1988
The magnetic properties and EPR spectra of magnetically diluted KNixMg1−xF3 perovskite solid solutions are examined. The susceptibility measurements show that these compounds are isotropic antiferromagnetic materials at high nickel concentrations. A critical concentration is found to be x = 0.4.
D. Skrzypek, K. Bialas-Borgiel, Z. Celiński   +2 more
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