Browsing School of Engineering and Materials Science by Author "Koval, V"
Now showing items 1-20 of 22
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Bi3.25La0.75Ti2.5Nb0.25(Fe0.5Co0.5)(0.25)O-12, a single phase room temperature multiferroic
Li, Z; Tao, K; Ma, J; Gao, Z; Koval, V; Jiang, C; Viola, G; Zhang, H; Mahajan, A; Cao, J (2018-03-21) -
Cobalt-induced structural modulation in multiferroic Aurivillius-phase oxides
Koval, V; Shi, Y; Skorvanek, I; Viola, G; Bures, R; Saksl, K; Roupcova, P; Zhang, M; Jia, C; Yan, H (2020-07-07) -
Crystal Chemistry and Magnetic Properties of Gd-Substituted Aurivillius-Type Bi5FeTi3O15 Ceramics
Koval, V; Skorvanek, I; Viola, G; Zhang, M; Jia, C; Yan, H (2018-07-12) -
Crystal structure and electrical properties of textured Ba2Bi4Ti5O18 ceramics
Cao, J; Koval, V; Zhang, H; Lin, Y; Wu, J; Meng, N; Li, Y; Li, Z; Zhang, H; Yan, H (2019-04) -
Electric field-induced transformations in bismuth sodium titanate-based materials
Viola, G; Tian, Y; Yu, C; Tan, Y; Koval, V; Wei, X; Choy, K-L; Yan, H (2021) -
Energy storage properties of samarium-doped bismuth sodium titanate-based lead-free ceramics
Tang, X; Hu, Z; Koval, V; Yang, B; Smith, GC; Yan, H (2023-10-01)Due to worldwide environmental regulations, lead-free relaxors, namely Bi0.5Na0.5TiO3–6BaTiO3 (BNT-6BT) are being extensively studied as an alternative candidate for energy storage applications. Here, Sm was introduced at ... -
Lithium-Induced Phase Transitions in Lead-Free Bi0.5Na0.5TiO3 Based Ceramics
Viola, G; McKinnon, R; Koval, V; Adomkevicius, A; Dunn, S; Yan, H (2014-04-24) -
Magnetoelectric coupling at microwave frequencies observed in bismuth ferrite-based multiferroics at room temperature
Zhang, M; Koval, V; Shi, Y; Yue, Y; Jia, C; Wu, J; Viola, G; Yan, H (2023) -
On the origin of grain size effects in Ba(Ti<inf>0.96</inf>Sn<inf>0.04</inf>)O<inf>3</inf> perovskite ceramics
Tan, Y; Viola, G; Koval, V; Yu, C; Mahajan, A; Zhang, J; Zhang, H; Zhou, X; Tarakina, NV; Yan, H (Elsevier, 2019)Over the last 50 years, the study of grain size effects in ferroelectric ceramics has attracted great research interest. Although different theoretical models have been proposed to account for the variation in structure ... -
Perovskite Bi0.5Na0.5TiO3-based materials for dielectric capacitors with ultrahigh thermal stability
Wu, J; Zhang, H; Meng, N; Koval, V; Mahajan, A; Gao, Z; Zhang, D; Yan, H (Elsevier BV, 2020-11)There has been recently a great progress in the development of dielectric capacitors for high temperature electronic applications. The design of lead-free ceramics with high dielectric permittivity, low dielectric loss and ... -
Phase evolution and electrical behaviour of samarium-substituted bismuth ferrite ceramics
Yu, C; Viola, G; Zhang, D; Zhou, K; Koval, V; Mahajan, A; Wilson, RM; Tarakina, NV; Abrahams, I; Yan, H (2018-04) -
Room temperature magnetoelectric coupling in intrinsic multiferroic Aurivillius phase textured ceramics
Li, Z; Ma, J; Gao, Z; Viola, G; Koval, V; Mahajan, A; Li, X; Jia, C; Nan, C; Yan, H (2016) -
Room-temperature multiferroic behavior in layer-structured Aurivillius phase ceramics
Li, Z; Koval, V; Mahajan, A; Gao, Z; Vecchini, C; Stewart, M; Cain, MG; Tao, K; Jia, C; Viola, G (2020-08-03) -
Temperature-dependent deformation in silver-particle-covered copper nanowires by molecular dynamics simulation
Li, P; Yang, YQ; Koval, V; Luo, X; Chen, J; Zhang, W; Lin, EE; Wang, B; Yan, H (Elsevier, 2021-05)Cu nanowires covered by Ag particles is studied for potential applications in the next-generation microelectronics. To date, the deformation mechanism in the Cusingle bondAg core-particle is not clear. Here, molecular ... -
Temperature-dependent deformation processes in two-phase TiAl + Ti3Al nano-polycrystalline alloys
Li, P; Yang, YQ; Koval, V; Chen, J; Luo, X; Zhang, W; Wang, B; Yan, H (Elsevier, 2020-12-01)Although deformation processes in single-phase nano-polycrystalline alloys at different temperatures are well described, the deformation mechanism in two-phase nano-polycrystalline alloys at different temperatures is still ... -
Terahertz Faraday Rotation of SrFe12O19 Hexaferrites Enhanced by Nb Doping
Hu, Z; Stenning, GBG; Koval, V; Wu, J; Yang, B; Leavesley, A; Wylde, R; Reece, MJ; Jia, C; Yan, H (2022) -
Terahertz Probing Irreversible Phase Transitions Related to Polar Clusters in Bi0.5Na0.5TiO3-Based Ferroelectric
Wu, J; Sun, W; Meng, N; Zhang, H; Koval, V; Zhang, Y; Donnan, R; Yang, B; Zhang, D; Yan, H (2020-02-16) -
Terahertz probing of low temperature degradation in zirconia bio‐ceramics
Ahmed, S; Zhang, M; Koval, V; Zou, L; Shen, Z; Chen, R; Yang, B; Yan, H (Wiley, 2021-09-19)ZrO2-based ceramics are widely used in biomedical applications due to its color, biocompatibility, and excellent mechanical properties. However, low-temperature degradation (LTD) introduces a potential risk for long-term ... -
Terbium-induced phase transitions and weak ferromagnetism in multiferroic bismuth ferrite ceramics
Koval, V; Skorvanek, I; Durisin, J; Viola, G; Kovalcikova, A; Jr, SP; Saksl, K; Yan, H (2017-03-14) -
Tuning the electrocaloric enhancement near the morphotropic phase boundary in lead-free ceramics
Le Goupil, F; McKinnon, R; Koval, V; Viola, G; Dunn, S; Berenov, A; Yan, H; Alford, NM (2016-06-17)