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Journal articles on the topic 'Baryum – Composés – Structure'

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Published: 4 June 2021

Last updated: 1 February 2022

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1

Hoshina, Takuya, Hirofumi Kakemoto, Takaaki Tsurumi, Masatomo Yashima, Yoshihiro Kuroiwa, and Satoshi Wada. "Phase Transition Behavior of Barium Titanate Nanoparticles." Key Engineering Materials 320 (September 2006): 131–34. http://dx.doi.org/10.4028/www.scientific.net/kem.320.131.

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Almost impurity-free, defect-free and dense barium titanate (BaTiO3) fine particles with various sizes from 20 to 430 nm were prepared by the 2-step thermal decomposition method and post-heating treatment. The crystal structures of these particles in the range from -150 to 150 °C were investigated using synchrotron radiation XRD measurement. The crystal structure refinement using Rietveld method revealed that BaTiO3 particles with the size over 40 nm were composed of two parts; (a) cubic shell and (b) core with successive phase transitions. The crystal structure of the core component can be re

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2

Jiao, Chun Rong, Da Ming Chen, and Jian Feng Tong. "Preparation of the Barium Strontium Titanate/Magnesium Oxide Plates by Non-Aqueous Gel-Casting." Advanced Materials Research 105-106 (April 2010): 794–97. http://dx.doi.org/10.4028/www.scientific.net/amr.105-106.794.

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Barium strontium titanate/magnesium oxide composite ceramic plates were prepared by non-aqueous gel-casting using barium strontium titanate and MgO as the raw materials. The rheological properties of the non-aqueous slurries, the dosages of the catalyst and initiator, micro structures and phase structures of the sintering ceramic plates were investigated and analyzed. The results showed that the slurry with solid content of 50wt% in non-aqueous gel-casting had excellent rheological properties and operating characteristics. Ba0.6Sr0.4TiO3/MgO plates with a smooth surface and dense structure wer

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3

Tabatabaee, Masoumeh, Boris-Marko Kukovec, Saeed Amjad, and Masoud R. Shishebor. "Two Different Barium(II) 2D Coordination Polymers Constructed with Pyrazine-2,3-Dicarboxylate: Synthesis, Crystal Structures, and Thermal Decomposition to Barium(II) Carbonate Nanoparticles." Australian Journal of Chemistry 69, no. 11 (2016): 1261. http://dx.doi.org/10.1071/ch16091.

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Two novel barium(ii) 2D coordination polymers, {[Ba(µ-H2O)(H2O)2(µ-pyzdc)]}n (1) and {[Ba(H2O)2(µ-Hpyzdc)(Hpyzdc)]⋅2H2O}n (2) (pyzdcH2 = pyrazine-2,3-dicarboxylic acid), were prepared by reaction of barium(ii) chloride dihydrate and pyrazine-2,3-dicarboxylic acid under similar experimental conditions (slightly different pH values) and characterised by elemental analysis, IR spectroscopy, and thermogravimetric analysis/differential thermal analysis methods. Their crystal structures were determined by single-crystal X-ray structure analysis and it was revealed that the barium(ii) ion has a disto

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4

Pan, Ming-Yan, Sheng-Qing Xia, and Xu-Tang Tao. "Crystal structure of Ba5In4Sb6." Acta Crystallographica Section E Crystallographic Communications 71, no. 5 (2015): i4. http://dx.doi.org/10.1107/s2056989015006933.

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The title compound, pentabarium tetraindium hexaantimony, was synthesized by an indium-flux reaction and its structure features layers composed of edge-sharing In2Sb6units. The voids between the In4Sb6layers are filled by Ba2+cations, which are all surrounded by six Sb atoms and form bicapped octahedral or triangular prismatic coordination geometries. There are five barium ions in the asymmetric unit: one has no imposed crystallographic symmetry, two lie on mirror planes and two havemm2 point symmetry. The two In atoms and four Sb atoms in the asymmetric unit all lie on general crystallographi

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5

N'Faoui, Fatima-Ezahra, Jilali Aride, Ali Boukhari, M'Hamed Taibi, Mohamed Saadi, and Lahcen El Ammari. "Crystal structure of Ba2Co(BO3)2." Acta Crystallographica Section E Crystallographic Communications 75, no. 3 (2019): 388–91. http://dx.doi.org/10.1107/s2056989019002597.

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Single crystals of dibarium cobalt(II) bis(orthoborate), Ba2Co(BO3)2, have been obtained from the melt. The crystal structure is composed of two isolated (BO3)3− triangles linked to Co2+ cations. The resulting [CoO5] square pyramids and the borate anions make up branched rows extending parallel to [010]. The barium cations occupy two sites in the voids of this arrangement and exhibit coordination numbers of nine each. A comparison with the structures of other A 2 M(BO3)2 compounds reveals a unique five-coordination of the small metal M in the title compound instead of four- or six-coordination

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6

Maschmeyer, Elizabeth M., Liurukara D. Sanjeewa, and Kulugammana G. S. Ranmohotti. "Crystal structure of BaMnB2O5containing structurally isolated manganese oxide sheets." Acta Crystallographica Section E Crystallographic Communications 72, no. 9 (2016): 1315–20. http://dx.doi.org/10.1107/s2056989016013074.

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In an attempt to search for mixed alkaline-earth and transition metal pyroborates, the title compound, barium manganese(II) pyroborate, has been synthesized by employing a flux method. The structure of BaMnB2O5is composed of MnO5square pyramids that form Mn2O8dimers by edge-sharing and of pyroborate units ([B2O5]4−) that are composed of two corner-sharing trigonal–planar BO3units. These building blocks share corners to form∞2[MnB2O5]2−layers extending parallel to (100). The Ba2+cations reside in the gap between two manganese pyroborate slabs with a coordination number of nine. The title compou

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Nozawa, Aki, Tetuo Kuwabara, Hiroshi Uchida, Chikako Moriyoshi, Yoshihiro Kuroiwa, and Satoshi Wada. "Preparation of Barium Titanate and Strontium Titanate Nanocube Particles and their Accumulation Using Smart Glue." Key Engineering Materials 421-422 (December 2009): 514–17. http://dx.doi.org/10.4028/www.scientific.net/kem.421-422.514.

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Barium titanate (BaTiO3, BT) and strontium titanate (SrTiO3, ST) nanocube particles were successfully prepared by a solvothermal method. The prepared particles were collected by a centrifugal separator. The X-ray diffraction (XRD) measurement confirmed the formation of perovskite BT and ST nanoparticles with sizes of around 17 nm while a transmittance electron microscope (TEM) observation revealed formation of cubic-shaped nanoparticles with sharp edge and corner. These nanocube particles were monodistributed in hexane with tri-n-octylphosphine oxide (TOPO) as dispersant, separately, and then,

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8

Kwon, Dongchul, and Lew Rabenberg. "Interpretation of HREM images of m-barium ferrite taken under dynamical scattering conditions." Proceedings, annual meeting, Electron Microscopy Society of America 53 (August 13, 1995): 478–79. http://dx.doi.org/10.1017/s0424820100138762.

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In HREM analyses of extended structural defects in complex compounds, it is desirable to be able to image atomic columns composed of light elements as well as those composed of heavy elements. For the thinnest possible specimens, HREM image contrast tends to be dominated by the heavy elements, however, it is possible to increase the contribution of the light elements to the image by imaging specimens of somewhat greater thicknesses. This paper presents results from a HREM study of extended defects in M-barium ferrite in which this approach has been successfully applied.Hexagonal ferrites, of w

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9

Kondo, Shuhei, Chikako Moriyoshi, Yoshihiro Kuroiwa, and Satoshi Wada. "Particle Structure Analysis of Highly-Dispersed Barium Titanate Nanoparticles Obtained from Barium Titanyl Oxalate Nanoparticles and their Dielectric Properties." Key Engineering Materials 421-422 (December 2009): 506–9. http://dx.doi.org/10.4028/www.scientific.net/kem.421-422.506.

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Barium titanate (BaTiO3) nanoparticles were prepared by two-step thermal decomposition method of barium titanyl oxalate nanoparticles with a size of 30 nm. The BaTiO3 particle sizes were changed from 12.3 to 142 nm by control of temperature at 2nd step. The X-ray diffraction (XRD) measurement revealed that a clear splitting of 002 and 200 planes was observed over 40 nm, and the c/a ratio of 1.0089 was obtained for the BaTiO3 nanoparticles with a size of 62.3 nm. This high c/a ratio in the BaTiO3 nanoparticles suggested that its mesoscopic particle structure was composed of very thin surface cu

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10

Bajac, Branimir, Jelena Vukmirovic, Ivan Tokic, Stevan Ognjanovic, and Vladimir Srdic. "Synthesis and characterization of multilayered BaTiO3/NiFe2O4 thin films." Processing and Application of Ceramics 7, no. 1 (2013): 15–20. http://dx.doi.org/10.2298/pac1301015b.

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Presented research was focused on the fabrication of multiferroic thin film structures, composed of ferrielectric barium titanate perovskite phase and magnetostrictive nickel ferrite spinel phase. The applicability of different, solution based, deposition techniques (film growth from solution, dip coating and spin coating) for the fabrication of multilayered BaTiO3 /NiFe2O4 thin films was investigated. It was shown that only spin coating produces films of desired nanostructure, thickness and smooth and crackfree surfaces.

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11

Duckworth, PA, LF Lindoy, M. Mcpartlin, and PA Tasker. "New Macrocyclic Ligands. IV. Dibenzo-Substituted Rings Incorporating Five Donor Atoms. X-Ray Structures of an N4O-Donor Macrocycle, Its Protonated Form, and Its Complex With Barium Perchlorate." Australian Journal of Chemistry 46, no. 11 (1993): 1787. http://dx.doi.org/10.1071/ch9931787.

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The syntheses and characterization of four dibenzo-substituted macrocycles incorporating N5-, N4O-or N4S-donor sets are reported. The new systems extend the range of related (potentially pentadentate ) macrocyclic systems of this general structure reported previously. For the 17-membered macrocycle incorporating an N4O-donor set, X-ray structure determinations of the free ligand and its salt of type [LH]ClO4 confirm the structure of this compound predicted from physical measurements. The diperchloratobarium complex of this macrocycle is shown to have the barium nine-coordinate; the coordinatio

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12

Bhandari, Bhojraj, and Bhadra Prasad Pokheral. "Dielectric Phase Transition Behaviour Study of Dry Route Derived (BA0.5 SN0.5) TIO3 Ceramics." Journal of Nepal Chemical Society 40 (December 31, 2019): 73–77. http://dx.doi.org/10.3126/jncs.v40i0.27286.

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Ceramic materials display a wide range of properties that facilitate their use in many different product areas. Currently, there has been keen interest in the field of ceramic materials due to their excellent mechanical and physical properties. Barium Stannate Titanate (BST) is a binary solid solution system composed of ferroelectric Barium titanate and non-ferroelectric barium titanate. In this study, the phase transition behavior of (Ba1-xSnx)TiO3 (x = 0.5) (BST) ceramics was obtained by the dry-route method. The previous studies were based on Sn 2+ on the Ti site with varying values of x. T

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13

Shi, E., C. R. Cho, M. S. Jang, S. Y. Jeong, and H. J. Kim. "The formation mechanism of barium titanate thin film under hydrothermal conditions." Journal of Materials Research 9, no. 11 (1994): 2914–18. http://dx.doi.org/10.1557/jmr.1994.2914.

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Barium titanate thin films were produced under the hydrothermal conditions, and their formation mechanism was investigated. The phase structure and surface morphology of the resultant films were directly dependent on the reaction conditions. The films that have a reaction time shorter than 8 h below the processing temperature of 150 °C in the 0.8 N Ba(OH)2 solution were composed of compounds with the component ratio m(Ba)/ m(Ti) < 1, and a flower-like surface morphology. With extended reaction time under the higher temperature, the films showed a multiphase structure and a mosaic or island-

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14

Jung, Jae-yong, Juna Kim, Young-Seok Shim, Donghyun Hwang, and Chang Sik Son. "Structure and Photoluminescence Properties of Rare-Earth (Dy3+, Tb3+, Sm3+)-Doped BaWO4 Phosphors Synthesized via Co-Precipitation for Anti-Counterfeiting." Materials 13, no. 18 (2020): 4165. http://dx.doi.org/10.3390/ma13184165.

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Barium tungstate (BaWO4) powders with various sintering temperatures, and BaWO4:Dy3+ phosphor samples with concentrations of different rare-earth (RE) activator ions (Dy3+, Sm3+, Tb3+) were prepared through co-precipitation. The structural, morphological, and photoluminescent characteristics of barium tungstate phosphors depend on the concentration of RE ions. The crystallographic characteristics of the synthesized BaWO4 were analyzed using X-ray diffraction (XRD) patterns. The size and shape of the crystalline particles were estimated based on images measured with a field emission scanning el

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15

Nuel, Maximilien, Julien Laurent, Paul Bois, et al. "Potentialité des zones humides infiltrant des eaux routières dans la nappe rhénane – étude de huit bassins de rétention et d’infiltration à Wolfisheim, Alsace." Revue des sciences de l’eau 29, no. 1 (2016): 1–8. http://dx.doi.org/10.7202/1035712ar.

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Quatre filières de rétention et d’infiltration des eaux de ruissellement situées sur la route départementale 45 (RD 451) dans le Bas-Rhin constituent l’objet de l’étude. Chaque filière est composée : d’un bassin de rétention étanchéifié et équipé d’un « peigne végétal », d’un bassin d’infiltration végétalisé et équipé de plaques lysimétriques qui permettent de récupérer les eaux infiltrées à 25 et 50 cm de profondeur et d’un piézomètre/qualitomètre pour le suivi qualitatif et quantitatif de la nappe (mesure des concentrations en hydrocarbures aromatiques polycycliques (HAP) et en métaux). Enfi

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16

Park, Yung, and Yoonho Kim. "The dielectric temperature characteristic of additives modified barium titanate having core-shell structured ceramics." Journal of Materials Research 10, no. 11 (1995): 2770–76. http://dx.doi.org/10.1557/jmr.1995.2770.

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The dielectric temperature characteristics and microstructures of BaTiO3-based ceramics sintered with additives such as Sm2O3, CeO2, and Bi2O3:Nb2O5 were investigated using TEM, XRD, and EDS. For a Sm2O3-modified BaTiO3 ceramic whose additives were uniformly distributed in grains, the ferroelectric transition temperature (Tc) was shifted to a lower temperature, while the transition temperatures (T1 and T2) were shifted to a higher temperature. The additions of CeO2 and Bi2O3: PbO to BaTiO3 formed the chemical inhomogeneity which was composed of grain core, grain shell, and concentration gradie

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17

Wada, Satoshi, Takuya Hoshina, Hiroaki Yasuno, et al. "Size Effect of Dielectric Properties for Barium Titanate Particles and Its Model." Key Engineering Materials 301 (January 2006): 27–30. http://dx.doi.org/10.4028/www.scientific.net/kem.301.27.

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Powder dielectric measurement of barium titanate (BaTiO3) fine particles from 17 to 1,000 nm revealed a maximum dielectric constant at a certain particle size. The sizes with maximum dielectric constants were strongly dependent on preparation methods. When BaTiO3 fine particles were prepared in vacuum of 10-2 torr, a dielectric maximum of 15,000 was observed at 70 nm. On the other hand, when BaTiO3 fine particles were prepared in air, a dielectric maximum of 5,000 was observed at 140 nm. Structure refinement of BaTiO3 particles using a Rietveld method revealed that all of BaTiO3 particles were

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18

Hinks, D. G. "The Nature of Superconductivity in Ba1-XKXBiO3." MRS Bulletin 15, no. 6 (1990): 55–59. http://dx.doi.org/10.1557/s0883769400059522.

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Superconductivity in potassium-doped BaBiO3 was first observed by Mattheiss et al. in 1988 and the structure of the superconducting material was determined by Cava et al. The material crystallizes in a simple perovskite structure with potassium substituted on the barium site as shown in Figure 1. Unlike the layered copper-oxide materials, this compound is simple cubic and thus isotropic in the superconducting state and shows no magnetism. Band theory calculations show that the electronic structure is simple, with conduction bands composed of Bi(sp)O(p) hybridized orbitals and, unlike the coppe

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19

Busche, Silke, and Karsten Bluhm. "Zur Synthese und Kristallstruktur von Dibariumkaliumtrizinkborat Ba2KZn3(B3O6)(B6O13)/Synthesis and Crystal Structure of Di-barium Potassium Tri-zinc Borate Ba2KZn3(B3O6)(B6O13)." Zeitschrift für Naturforschung B 51, no. 3 (1996): 319–24. http://dx.doi.org/10.1515/znb-1996-0304.

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Abstract Single crystals of the new compound Ba2KZn3(B3O6)(B6O13) were obtained by using a B2O3 flux technique; they crystallize in an as yet unknown structure type. X-ray investigations led to the space group Ci1-P1̄ (Nr.2) with lattice parameters a = 705.2(2), b = 712.5(2), c = 1880.3(6), a = 93.43(3)°, β = 90.72(2)°, γ = 119.57(2)°, Z = 2. The structure contains (B3O6)3--rings and a new discrete (B6O13)8- anion, which is composed of two BO4 and two B2O5 units. Zn2+ is tetrahedrally coordinated by oxygen and two out of three tenfold coordinated Ba-sites are statistically occupied by Ba2+ and

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20

Delprat, Sébastien L., JaeHo Oh, Feng Xu, et al. "Fully Distributed Tunable Bandpass Filter Based on Ba0.5Sr0.5TiO3 Thin-Film Slow-Wave Structure." International Journal of Microwave Science and Technology 2011 (October 2, 2011): 1–9. http://dx.doi.org/10.1155/2011/468074.

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This paper presents simulation and measurement results of fully distributed tunable coplanar bandpass filters (BPFs) with center frequencies around 6 GHz that make use of ferroelectric Barium Strontium Titanate (BaxSr1−xTiO3 or BST-x) thin film as tunable material. The two experimental bandpass filters tested are based on a novel frequency-agile structure composed of cascaded half wavelength slow-wave resonators (2 poles) and three coupled interdigital capacitors (IDCs) optimized for bias voltage application. Devices with gap dimensions of 10 and 3 μm are designed and fabricated with a two-ste

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21

Nikfalazar, Mohammad, Alex Wiens, Morten Mikolajek, et al. "Tunable Phase Shifter Based on Inkjet-Printed Ferroelectric MIM Varactors." Frequenz 69, no. 1-2 (2014): 39–46. http://dx.doi.org/10.1515/freq-2014-0120.

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Abstract This paper presents a new method for the fabrication of tunable multilayer ferroelectric components based on inkjet printing. Inkjet printing is a low-cost technology for selective film fabrication and has high potential for the preparation of tunable dielectric layers for radio frequency and microwave applications. With this technology, tunable metal-insulator-metal (MIM) capacitor is fabricated, that is composed of inkjet-printed Barium-Strontium-Titanate striplines and photo-lithographically structured gold electrodes. Compared to coplanar capacitors, such MIM varactors require sig

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22

Winatapura, Didin Sahidin, Deswita, Ari Adi Wisnu, Setyo Purwanto, and Y. F. Buys. "Influence of La, Mn and Zn Substitution on the Structure, Magnetic and Absorption Properties of M-Type Barium Ferrites." Key Engineering Materials 855 (July 2020): 145–53. http://dx.doi.org/10.4028/www.scientific.net/kem.855.145.

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A series of M-type barium ferrites with chemicals composition BaFe12O19 and Ba0.7La0.3Fe(12-2x)(MnZn)xO19 (with x = 0.0, 0.2, 0.5) were synthesized using a chemical coprecipitation based technique. The sample was then called as BFO and BLF, BLFMZ-02 and BLFMZ-05, respectively. The structural parameters were measured by applying the full pattern fitting of Rietveld method using Fullprof program. The crystallite size was calculated using Scherrer formula and Williamson-Hall analysis method, and also confirmed by scanning electron microscope (SEM) and transmission electron microscope (TEM). The m

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23

Al-Maliki, Salah H., and Mahdi A. Atyia. "Macroscopical Anatomy and Radiographic Study of the Non-Lactating Udder of Adult Local Iraqi Cow (Bos taurus)." Iraqi Journal of Veterinary Medicine 44, (E0) (2020): 100–105. http://dx.doi.org/10.30539/ijvm.v44i(e0).1030.

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The purpose of this study was to describe some anatomical and radiological features of the non-lactating udder of adult local Iraqi cow. Eight udder of local breed cow clinically appeared healthy and aged between 2-5 years were obtained from a local slaughterhouse located at Baghdad province. Five udders were used for anatomical study and the rest 3 udders were used for the radiological study. The study primed to describe the macroscopic anatomy of the udder and investigate the udder’s normal blood supply using red-colored latex. The mammography method was to describe the duct system of the gl

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24

Yang, Guangliang, Chongyang Shen, Hongbo Tan, and Jiapei Wang. "Crustal Density Structure of the Jiuzhaigou Ms7.0 Earthquake Area Revealed by the Barkam–Jiuzhaigou–Wuqi Gravity Profile." Sensors 21, no. 4 (2021): 1497. http://dx.doi.org/10.3390/s21041497.

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The Barkam–Jiuzhaigou–Wuqi gravity profile extends across the Jiuzhaigou Ms7.0 earthquake (in 2017) zone and passes through several historical big earthquakes’ zones. We have obtained Bouguer gravity anomalies along the profile composed of 365 gravity observation stations with Global Positioning System (GPS) coordinates, analyzed the observed data and inverted subsurface density structure. The results show that the Moho depth has a big lateral variation from southwest to northeast, which shallows from 57 km to 43 km with maximum variation up to 14 km within 800 km. The most acute depth change

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25

Weil, Matthias. "The crystal structure of BaH6As4O14 redetermined, revealing the localization of the hydrogen atoms." IUCrData 4, no. 1 (2019). http://dx.doi.org/10.1107/s2414314619000750.

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The crystal structure of barium hexahydrogen cyclo-tetradecaoxidotetraarsenate(V), was redetermined. In comparison with the previous determination [Blum, Durif & Guitel. (1977). Acta Cryst. B33, 3222–3224] the positions of the hydrogen atoms were located, and more precise data in terms of bond lengths and angles were obtained. The crystal structure is composed of an eight-coordinate Ba2+ cation and a condensed oxoarsenate anion with connectivity [As[4](OH)1/1O1/1O2/2As[6](OH)2/1O1/2]2 2–. O—H...O hydrogen bonds between isolated anions consolidate the crystal packing.

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Barbosa, José, Bernardo Almeida, Jorge A. Mendes, Anabela G. Rolo, João P. Araújo, and João B. Sousa. "Structural and Magnetic Properties of Nanogranular BaTiO3-CoFe2O4 Thin Films Deposited by Laser Ablation on Si/Pt Substrates." MRS Proceedings 966 (2006). http://dx.doi.org/10.1557/proc-0966-t03-24.

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ABSTRACTThin film nanogranular composites of cobalt ferrite (CoFe2O4) dispersed in a barium titanate (BaTiO3) matrix were deposited by laser ablation with different cobalt ferrite concentrations (x). The films were polycrystalline and composed by a mixture of tetragonal-BaTiO3 and CoFe2O4 with the cubic spinnel structure. A slight (111) barium titanate phase orientation and (311) CoFe2O4 phase orientation was observed. As the concentration of the cobalt ferrite increased, the grain size of the BaTiO3 phase decreased, from 91nm to 30nm, up to 50% CoFe2O4 concentration, beyond which the BaTiO3 g

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Olegario, Eleanor M., and Mon Bryan Z. Gili. "Characterization of Philippine natural bentonite." Experimental Results 2 (2021). http://dx.doi.org/10.1017/exp.2021.16.

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Abstract Philippine natural bentonite is characterized using X-ray diffractometer (XRD), scanning electron microscope (SEM), chemical analysis, thermogravimetric-differential scanning calorimetry (TG-DSC), and Fourier transform infrared (FTIR) analysis. The cation exchange capacity (CEC) was also measured. XRD shows that the mineral is composed primarily of mordenite, hectorite, and montmorillonite. SEM shows the flaky and porous structure of the bentonite powder. Chemical analyses show that SiO2 (47.90 wt%) and Al2O3 (14.02 wt%) are the major components of the clay. TG-DSC shows that the mine

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Dejene, Francis, and Mesfin Kebede. "Synthesis and characterization of structural and luminescence properties of blue — green BaAlxOy:Eu2+ phosphor by solution — combustion method." Open Physics 10, no. 4 (2012). http://dx.doi.org/10.2478/s11534-011-0110-8.

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AbstractEuropium-doped barium aluminate (BaAlxOy:Eu2+) phosphors were obtained at low temperatures (500°C) using the solution — combustion of corresponding metal nitrate-urea solution mixtures. The particle size and morphology and the structural and luminescent properties of the synthesized phosphors were examined by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), Electron diffraction spectroscopy (EDS) and photoluminescence (PL). It was found that the change in Ba: Al molar ratios showed greatly influence not only on the particle size and morphology, but also on their PL

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Liu, Shaojun, Mark Van Schilfgaarde, Jian Sun, et al. "Theoretical and Experimental Study of Barium Zinc-Cadmium Tantalate-based Microwave Dielectrics." MRS Proceedings 783 (2003). http://dx.doi.org/10.1557/proc-783-b4.7.

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ABSTRACTSingle-phase Ba(Cd1/3Ta2/3)O3 ceramics have been produced using conventional powder processing methods. In our initial investigations, 2wt% ZnO powder was added to act as a sintering aid since a high-density ceramic was not formed from solid-state diffusion alone. The resulting Ba(Cd0.327Zn0.006Ta2/3)O3 material sintered at 1550° C exhibits a dielectric constant of ∼33 and loss tangent of <5×10−5 at 2 GHz. In our more recent work, we have used boron as a sintering aid to facilitate sintering at temperatures as low as 1300° C, enhance the structural quality and improve the microwave

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