Results 91 to 100 of about 25,661 (302)

Magnetic and electric properties of bismuth ferrite lead titanate ceramics [PDF]

, 2010
Solid solutions of multiferroic BiFeO3 doped with ferroelectric PbTiO3 (BFPT) can be prepared by conventional mixed oxide processing to produce a range of polycrystalline ceramics ranging throughout the xBiFeO3 - (1-x)PbTiO3 series. Sintered ceramics are
Stevenson, Timothy James
core  

Influence of the A/b stoichiometry on defect structure, sintering, and microstructure in undoped and Cu-doped KNN

, 2022
S.209-251Development of ceramics based on the alkaline niobate (KNN) system is one of the major lines of current research pointing to substitution of the lead containing ferroelectrics by lead-free materials. Sodium potassium niobate (K0.5Na0.5)NbO3 is a
Erünal, E., Hoffmann, M.J., Elsässer, C., Eichel, R.-A., Jakes, P., Acker, J., Marton, P., Kungl, H., Körbel, S.   +8 more
core   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

Electrical Properties of Lead Free Sr0.8Na0.1Sm0.1Bi4Ti4O15 Ceramics

Procedia Materials Science, 2015
AbstractPolycrystalline Sr1-2xNaxSmxBi4Ti4O15 (SNSBT) belongs to bismuth layer structured ferroelectric (BLSF) materials with x=0.1 have been prepared by sol gel method. XRD analysis confirms single phase formation with orthorhombic structure. Scanning electron micro graph of the material shows plate like grains with random orientation.
Ashok, K., Mamatha, B., Sarah, P.
openaire   +1 more source

Preparation and Characterization of High Textured KSr2Nb5O15 Lead-Free Piezoelectric Ceramics

, 2008
Anisometric KSr2Nb5O15(KSN) particles were synthesized by molten salt method with SrCO3,Nb2O5 and KCl as raw materials.With K2CO3,SrCO3 and Nb2O5 starting materials, KSN lead-free Piezoelectric ceramics were prepared by conventional ceramics technique ...
Xie LJ, Xu GJ, Li ZX
core  

Fabrication and characterization of free-standing thick-film piezoelectric cantilevers for energy harvesting [PDF]

, 2009
Research into energy harvesting from ambient vibration sources has attracted great interest over the last few years, largely as a result of advances in the areas of wireless technology and low power electronics.
Kok, Swee Leong, Harris, Nick, White, Neil   +2 more
core   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Enhanced Piezoelectricity and Thermal Stability of Electrostrain Performance in BiFeO₃-Based Lead-Free Ceramics. [PDF]

Nanomaterials (Basel), 2023
Shi H, Li K, Li F, Ma J, Tu Y, Long M, Lu Y, Gong W, Wang C, Shan L.   +9 more
europepmc   +1 more source

Current limiting and negative differential resistance in indium oxide based ceramics

, 2009
Indium oxide based ceramics with bismuth oxide addition were sintered in air in the temperature range 800-1300 ºC. Current-voltage characteristics of In2O3-Bi2O3 ceramics sintered at different temperatures are weakly nonlinear.
Bondarchuk, AN, Jones, Benjamin, A.B. Glot, A.N. Bondarchuk, Jones, BJ, Bondarchuk, A N, Glot, AB, R. Bulpett, Verma, N, Bulpett, R, Mazurik, SV, Mazurik, S V, B.J. Jones, Jones, B J, N. Verma, Mazurik, S.V., S.V. Mazurik, Glot, A B, Glot, A.B., Bondarchuk, A.N.   +19 more
core   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source