lead free knn based piezoelectric materials

Lead-Free Piezoelectrics pot

Ngày tải lên : 16/03/2014, 09:20

... important classes of lead- free piezoelectric materials were addressed by the leading authors Furthermore, the book covers the principles and design rules of the lead- free materials in depth The ... high piezoelectric response in lead- free piezoelectric materials are just beginning In this section, the phase transition characteristics of Na0.5Bi0.5TiO 3based, K0.5Na0.5NbO3 -based, and BaTiO3 -based ... Hwi-Yeol Park and Sahn Nahm 121 Lead- Free KNN- Based Piezoelectric Materials Ahmad Safari and Mehdi Hejazi 139 Alkali Niobate Piezoelectric Ceramics ...

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Báo cáo hóa học: " Fabrication of transparent lead-free KNN glass-ceramics by incorporation method" potx

Ngày tải lên : 22/06/2014, 00:20

... the maximum piezoelectric value even though it is still far from that of the lead- based materials, such as PZT KNN has recently been subjected to intensive studies as a promising lead- free ferroelectric ... depending on the frequency This KNN glass ceramic is a promising lead- free ferroelectric glass ceramic which may be applied to many applications replacing other materials, such as LiNbO3 and BaTiO3 ... 1 Fabrication of transparent lead- free KNN glass ceramics by incorporation method Ploypailin Yongsiri1, Sukum Eitssayeam1,2, Gobwut...

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study of wo3-based sensing materials for nh3 and no detection

Ngày tải lên : 20/03/2014, 13:08

... responded to NH These two kinds of materials can be used as NH and NO selective gas sensors, respectively The characteristics of WO 3 -based semiconducting materials responding to NH and NO, i.e., ... NO compared with pure WO The materials of WO loaded with wt.% Cr, La, Pr, Sm, Gd, Er, Tm and Yb showed good responses to NH , and hardly responded to NO, and the materials of WO loaded with wt.% ... alkali earth metals The materials of WO loaded with wt.% Mg, Zn, Mo and Re showed good responses both to NH and NO, and can be used for NH and NO gas sensors As a whole, these materials have low resistance...

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Báo cáo toán học: " Reference-free time-based localization for an asynchronous target" pot

Ngày tải lên : 20/06/2014, 20:20

... call them reference -based USRD-LS (REFB-USRD-LS) and REFBUSRD-WLS approaches To expose interesting links among the different reference -based or reference -free SR -based or SRD -based approaches, ... several reference -free localization estimators based on TOA measurements for a scenario, where anchor nodes are synchronized, and the clock of the target node runs freely The reference -free LS estimators ... proposed reference -free localization estimators based on TOA measurements for a scenario, where anchors are synchronized, and the clock of the target node runs freely The reference -free estimators...

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Báo cáo hóa học: " Electrical properties of lead-free " pdf

Ngày tải lên : 20/06/2014, 23:20

... 0.98NKN-0.02BZT ceramics sintered at 1,090°C for h Keywords: NKN-BZT; lead- free; sintering temperature; piezoelectric properties Introduction Lead- based perovskites have been extensively used in industries ... PbO in these materials presents an environmental problem The studies are now focused on discovering an alternative for lead- based materials Potassium sodium niobate ((Na,K)NbO3) materials are ... Electrical properties of lead- free 0.98(Na0.5K0.5)NbO3-0.02Ba(Zr0.52Ti0.48)O3 piezoelectric ceramics by optimizing sintering temperature Seung-Hwan...

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Báo cáo hóa học: " Investigation of a new lead-free " docx

Ngày tải lên : 20/06/2014, 23:20

... (Bi0.5Na0.5)TiO3-(Ba, Sr)TiO3 lead- free piezoelectric ceramics J Alloy Compd 2010, 492:307-312 Peng C, Li JF, Gong W: Preparation and properties of (Bi1/2Na1/2)TiO3Ba(Ti, Zr)O3 lead- free piezoelectric ceramics ... environmental problem Thus, it is urgent to search for lead- free piezoelectric ceramics with excellent properties comparable to those found in lead- based ceramics Because it has a large remanent polarization ... Hu JQ: Piezoelectric and dielectric properties of Bi0.5(Na0.84K0.16)0.5TiO3-Ba(Zr0.04Ti0.96)O3 lead free piezoelectric ceramics Adv Appl Ceram 2008, 107:222-226 14 Xu Y: Ferroelectric Materials...

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A novel flow battery—A lead acid battery based on an electrolyte with soluble lead pptx

Ngày tải lên : 05/07/2014, 20:21

... for the deposition of either lead or lead dioxide (except for lower current densities resulting from the higher viscosity of the medium) Moreover, SEM images of the lead deposits showed little ... solution Both solutions give a sharp lead dissolution peak positive to the formal potential and the ratio of charges associated with the dissolution and deposition of lead are very close to one Pulsed ... when viewed on a 10 ␮m scale The inﬂuence of sodium ligninsulfonate on the structure of the lead and lead dioxide deposits was also studied in a 106 A Hazza et al / Journal of Power Sources 149...

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Báo cáo y học: "Vastus medialis cross-sectional area is positively associated with patella cartilage and bone volumes in a pain-free community-based population" pdf

Ngày tải lên : 09/08/2014, 01:22

... and females Materials and methods Subjects Subjects were recruited from an existing cohort – the Melbourne Collaborative Cohort Study (MCCS), a prospective cohort study of community -based people ... determinants of vastus medialis and lateralis cross-sectional areas are unclear In a community -based population of women, we recently showed that increased vastus medialis cross-sectional area ... exercised once or twice per week or at least three times per week Vigorous was defined as activity leading to sweating or dyspnoea, and examples such as swimming, tennis, netball, athletics (which...

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Báo cáo khoa học: " Feasibility and early clinical assessment of flattening filter free (FFF) based stereotactic body radiotherapy (SBRT) treatments" pptx

Ngày tải lên : 09/08/2014, 09:21

... out-of-field dose when flattening filter free (FFF) beams are used This is mainly due to reduced head scatter and residual electron contamination FFF beams should therefore lead to reduced peripheral doses ... compression to minimize internal organ motion in abdominal cases) Contrast free and Contrast-enhanced planning CT scans were acquired in free breathing mode at mm slice thickness The clinical target volume ... article as: Scorsetti et al.: Feasibility and early clinical assessment of flattening filter free (FFF) based stereotactic body radiotherapy (SBRT) treatments Radiation Oncology 2011 6:113 Page...

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Báo cáo y học: "Vastus medialis cross-sectional area is positively associated with patella cartilage and bone volumes in a pain-free community-based population" ppt

Ngày tải lên : 09/08/2014, 13:22

... and females Materials and methods Subjects Subjects were recruited from an existing cohort – the Melbourne Collaborative Cohort Study (MCCS), a prospective cohort study of community -based people ... determinants of vastus medialis and lateralis cross-sectional areas are unclear In a community -based population of women, we recently showed that increased vastus medialis cross-sectional area ... exercised once or twice per week or at least three times per week Vigorous was defined as activity leading to sweating or dyspnoea, and examples such as swimming, tennis, netball, athletics (which...

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Nanostructured phosphate based electrode materials for lithium batteries

Ngày tải lên : 09/09/2015, 10:10

... cathode and anode materials for rechargeable lithium -based cells Figure 2.6: Voltage versus capacity for some of the prospective cathode and anode materials for rechargeable lithium -based cells Reprinted ... Characteristics of Cathode Materials 39 2.9 Recent Development in Cathode Materials 41 2.9.1 Transition Metal Oxide Systems 41 2.9.2 Transition Metal Phosphate Polyanion Materials 44 2.9.2.1 LiFePO4 ... LixCoO2 at high rate leads to evolution of oxygen when the potential increases above 4.4 V, resulting in major safety issues In this aspect, phosphate -based polyanion electrode materials have been...

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LI4TI5O12 based anode materials for high power lithium ion batteries

Ngày tải lên : 09/09/2015, 11:18

... cathode materials have been intensively investigated Some good cathode materials, such as LiFePO4 -based materials, have been well developed In contrast, studies of their corresponding anode materials ... anode materials are carbon -based materials (such as hard carbon, soft carbon, and mesocarbon microbeads), LTO, and some transition metal oxides (such as TiO2, WO2, MoO2 and Nb2O5) These anode materials ... of anode materials is their large capacity while the disadvantage is their poor cyclability These anode materials will be discussed in detail in the following paragraphs Carbon -based materials...

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Cyclophane and bridged triphenylamine based organic materials for optical applications

Ngày tải lên : 10/09/2015, 08:24

... absorption) materials A large number of “triphenylamine based TPA chromophores” are reported in literature But bridged-triphenylamine is not much explored in literature for making TPA materials ... Star-shaped TPA materials are well explored in literature But most of the literature reported star-shaped TPA materials are symmetrical in nature Unsymmetrical star-shaped TPA materials are not ... bridged-triphenylamine based star-shaped donor-acceptor chromophores Based on the experimental results obtained throughout the present thesis, a conclusion of our work is drawn in Chapter seven Based on our...

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Synthesis, characterization and potential applications of pyrene based organic materials

Ngày tải lên : 11/09/2015, 10:19

... Electronics 19 1.6.1.1 Pyrene Based LCDs 19 1.6.1.2 Pyrene Based OLEDs 20 1.6.1.3 Pyrene Based OFETs 20 1.6.1.4 Pyrene Based Organic Solar Cells 21 1.6.2 Sensors 21 1.6.3 Pyrene Based Biomolecular Probes ... pyrene based materials 1.2 Physical Properties of Pyrene Pyrene (C16H10), alternatively known as benzo(D, E, F)phenanthrene, is primarily formed by incomplete combustion of carbon containing materials ... SYNTHESIS, CHARACTERIZATION AND POTENTIAL APPLICATIONS OF PYRENE BASED ORGANIC MATERIALS JHINUK GUPTA (M Sc., Indian Institute of Technology Madras, India) A THESIS SUBMITTED...

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Development of lead free electroless nickel plating systems and metal thin films on silicone and nafion membranes

Ngày tải lên : 14/09/2015, 14:01

... (Castellino, 1995) Development of lead- free ENP baths has consequently become obligatory (Chen, 2006) Therefore, it is necessary to explore some non-toxic chemicals to replace lead as the stabilizer in ... of ENP 2.5.1 Pretreatment of substrate 29 29 2.5.1.1 Intrinsically active materials 30 2.5.1.2 Extrinsically catalytic materials 30 2.5.2 Effects of variables on the ENP process 31 2.5.2.1 Effect ... Ni-P deposition layer based on EDX analysis 75 Table 3.3 Change of the Ni and P contents in the plating layer with MTO 76 Table 4.1 Composition of Ni-P alloy deposit layer based on EDX analysis...

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Synthesis and characterization of amphiphilic poly(p phenylene) based nanostructured materials 6

Ngày tải lên : 14/09/2015, 18:36

... Experimental details 61 Materials and reagents All reagents were purchased from Aldrich, Fluka, Merck and TCI and were used ... plasmons 6.6 Surface Plasmon Resonance Spectroscopy The SPR studies performed were on a set up based on “Kretschmann Configuration A schematic diagrm of the setp up is shown in Figure 6.1 Photodiode ... controllers Lock-in amplifier Figure 6.1 Schematic diagram of surface plasmon spectroscopy set-up based on Kretchmann configuration 184 Experimental details A Helium-Neon-Laser (Uniphase, mW, λ...

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Synthesis and characterization of amphiphilic poly(p phenylene) based nanostructured materials 5

Ngày tải lên : 14/09/2015, 18:37

... organic-inorganic hybrid materials, novel methods were adopted from Nature’s “bottom-up” strategy in which biomacromolecules are employed to control the size, shape and function of inorganic materials with ... adoption and manipulation of the synthesis of inorganic materials using artificial or natural templates created interesting nanostructured inorganic materials. 14-24 The elegant demonstration of silica ... of conjugated polymers into an inorganic matrix and the development of organic-inorganic hybrid materials is an efficient method to enhance the optical and electronic properties as well as to...

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