Results 31 to 40 of about 15,031 (183)

Laser surface texturing of a WC-CoNi cemented carbide grade: surface topography design for honing application [PDF]

open access: yes, 2018
Abrasive effectiveness of composite-like honing stones is related to the intrinsic surface topography resulting from the cubic boron nitride (CBN) grains protruding out of the metallic matrix.
Bähre, Dirk   +2 more
core   +2 more sources

Performance enhancement of ultrasonic transducer made of textured PNN-PZT ceramic

open access: yesJournal of Advanced Dielectrics, 2022
In this paper, 0.36Pb(Ni[Formula: see text]Nb[Formula: see text])O3–0.24PbZrO3–0.40PbTiO3(PNN-PZT) ceramic was prepared, and texture engineering was performed on this PNN-PZT ceramic to improve its electromechanical properties and temperature stability ...
Lang Bian   +10 more
doaj   +1 more source

Molten hydroxide synthesis as an alternative to molten salt sythesis for producing K0.5Na0.5NbO3 lead free ceramics [PDF]

open access: yes, 2011
Lead-free piezoelectric materials have grown in importance through increased environmental concern and subsequent EU and worldwide legislation, with the aspiration to reduce the use of Pb-based materials in all sectors. Integration of the next generation
Bortolani, Francesca   +3 more
core   +1 more source

Preparation and anisotropic properties of textured structural ceramics: A review

open access: yesJournal of Advanced Ceramics, 2019
Ceramics are usually composed of randomly oriented grains and intergranular phases, so their properties are the statistical average along each direction and show isotropy corresponding to the uniform microstructures.
Zhuo Zhang   +7 more
doaj   +1 more source

Near-ideal electromechanical coupling in textured piezoelectric ceramics

open access: yesNature Communications, 2022
“k” is the electromechanical coupling factor, and determines the efficiency of conversion between electrical and mechanical energy or vice-versa in piezoelectric materials. Here, Yan et al.
Yongke Yan   +6 more
doaj   +1 more source

The contribution of 211 particles to the mechanical reinforcement mechanism of 123 superconducting single domains [PDF]

open access: yes, 2003
Hardness and fracture toughness of Dy-123 single-domains were studied by Vickers micro-indentation. A significant anisotropy of the mechanical properties was observed. Hardness tests give higher values when performed in (001) planes rather than in planes
Ausloos, M.   +7 more
core   +2 more sources

Textured ferroelectric ceramics with high electromechanical coupling factors over a broad temperature range

open access: yesNature Communications, 2021
Only a few relaxors can be grown into crystals, which show high piezoelectricity, but their operable temperature range is limited by the low phase transition temperature.
Shuai Yang   +10 more
doaj   +1 more source

Biomimetic microtextured surfaces to improve tribological and antibacterial behaviors of 3Y-TZP ceramics

open access: yesJournal of Materials Research and Technology, 2023
Surface texturing has been a powerful means to improve the service performance of various engineering materials. The 3 mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) represents the most-used ceramic oxide in restorative dentistry due to ...
Jinyang Xu   +5 more
doaj   +1 more source

Using digital and hand printing techniques to compensate for loss: re-establishing colour and texture in historic textiles [PDF]

open access: yes, 2008
Conservators use a range of 'gap filling' techniques to improve the structural stability and presentation of objects. Textile conservators often use fabric supports to provide reinforcement for weak areas of a textile and to provide a visual infill in ...
Ahmon J.   +21 more
core   +1 more source

Texture design for microwave dielectric (Ca0.7Nd0.3)0.87TiO3 ceramics through reactive-templated grain growth

open access: yesScience and Technology of Advanced Materials, 2015
Plate-like Ca3Ti2O7 (CT) and Nd2Ti2O7 (NT) particles were synthesized in molten salts and used as reactive templates for the preparation of highly textured (Ca0.7Nd0.3)0.87TiO3 bulk ceramics (CNT) with preferred pseudocubic 〈100〉 and 〈110〉 orientations ...
Toshihiko Tani, Tsuguto Takeuchi
doaj   +1 more source

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