Search results for piezoelectric properties
Squeezed crystals deliver more volts per jolt
Jan 30, 2008 |
4.5 / 5 (19) |
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A discovery by scientists at the Carnegie Institution has opened the door to a new generation of piezoelectric materials that can convert mechanical strain into electricity and vice versa, potentially cutting costs and boosting ...
Researchers take the lead out of piezoelectrics
Nov 13, 2009 |
3.7 / 5 (3) |
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There is good news for the global effort to reduce the amount of lead in the environment and for the growing array of technologies that rely upon the piezoelectric effect. A lead-free alternative to the current ...
Modern ceramics help advance technology
May 08, 2008 |
3.3 / 5 (10) |
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Many important electronic devices used by people today would be impossible without the use of ceramics. A new study published in the Journal of the American Ceramic Society illustrates the use of ceramic materials in the ...
Possible Mechanism for Enormous Electromechanical Response
May 12, 2008 |
4.6 / 5 (36) |
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Scientists at the U.S. Department of Energy's Brookhaven National Laboratory and collaborators at Stony Brook University, Johns Hopkins University, and the National Institute of Standards and Technology have ...
Micromachined piezoelectric harvester drives fully autonomous wireless sensor
Dec 15, 2009 |
5 / 5 (11) |
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For the first time, a piezoelectric harvesting device fabricated by MEMS technology generates a record of 85μW electrical power from vibrations. A wafer level packaging method was developed for robustness. ...
Nanowire generates power by harvesting energy from the environment
Sep 27, 2007 |
4.5 / 5 (30) |
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As the sizes of sensor networks and mobile devices shrink toward the microscale, and even nanoscale, there is a growing need for suitable power sources. Because even the tiniest battery is too big to be used in nanoscale ...
Controlling the Vortex: a Novel Way to Create Switches
Jul 03, 2006 |
3.8 / 5 (15) |
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Researchers at the University of Arkansas have found a way to create switching in nanoscale materials, opening the path to using these new properties for memory devices, nanomotors, nanoswitches or nanosensors.
IMEC reports 40 microwatt from micromachined piezoelectric energy harvester
Jun 21, 2007 |
4.2 / 5 (13) |
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IMEC has fabricated an energy harvester to generate energy from mechanical vibrations by using micromachining technology. The harvester comes together with a model which can be used to optimize the device ...
Disorder Enables Extreme Sensitivity in Piezoelectric Materials
May 14, 2008 |
4.3 / 5 (7) |
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A research team working at the National Institute of Standards and Technology has found an explanation for the extreme sensitivity to mechanical pressure or voltage of a special class of solid materials called relaxors. The ...
Researchers Pressing on in Their Mission to Power the Nanodevices of Tomorrow
Nanotechnology / Nanomaterials
Jul 27, 2009 |
not rated yet |
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(PhysOrg.com) -- Much like humans, materials are capable of some pretty remarkable things when they're placed under pressure. In fact, under the right conditions, materials can even produce electricity.
Reducing Our Lead Footprint: Engineers Discover New Material to Reduce Lead in Electronics
Nov 19, 2008 |
4.4 / 5 (7) |
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(PhysOrg.com) -- Researchers at the University of Maryland's A. James Clark School of Engineering have discovered a new lead-free material, bismuth samarium ferrite (BSFO), for use in products ranging from ...
Strong elasticity size effects in ZnO nanowires
Oct 14, 2008 |
5 / 5 (5) |
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Recently, zinc oxide (ZnO) nanowires have drawn major interest because of their semiconducting nature and unique optical and piezoelectric properties. Various applications for ZnO nanowires have been conceived, including ...
Flexible charge pump: New small-scale generator produces alternating current by stretching zinc oxide wires
Nov 09, 2008 |
4.5 / 5 (24) |
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(PhysOrg.com) -- Researchers have developed a new type of small-scale electric power generator able to produce alternating current through the cyclical stretching and releasing of zinc oxide wires encapsulated ...
Portable electricity, life-like prosthetics on the way
Nov 16, 2007 |
3.7 / 5 (3) |
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The technology that makes a cell phone vibrate is the same technology that provides more natural movements to prosthetic limbs. A University of Houston research team is working on recreating and enhancing this technological ...
Chemists measure copper levels in zinc oxide nanowires
Nanotechnology / Nanomaterials
Feb 19, 2008 |
3 / 5 (2) |
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Chemists at the National Institute of Standards and Technology have been the first to measure significant amounts of copper incorporated into zinc oxide (ZnO) nanowires during fabrication. The issue is important ...
