News tagged with ceramic
Synthetic nano-waste does not disappear
(Phys.org) -- Tiny particles of cerium oxide do not burn or change in the heat of a waste incineration plant. They remain intact on combustion residues or in the incineration system, as a new study by Swiss ...
Nanotechnology / Bio & Medicine
May 25, 2012 |
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Scientists evaluate different antimicrobial metals for use in water filters
Porous ceramic water filters are often coated with colloidal silver, which prevents the growth of microbes trapped in the micro- and nano-scale pores of the filter. Other metals such as copper and zinc have also been shown ...
Nanotechnology / Bio & Medicine
May 24, 2012 |
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Group uses controlled cracking for nanofabrication
(Phys.org) -- When creating nanomaterials, cracking is generally considered a problem; it usually means something has gone wrong and the result, as with other material making processes such as glass or ceramics, ...
May 10, 2012 |
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Laser sparks revolution in internal combustion engines
For more than 150 years, spark plugs have powered internal combustion engines. Automakers are now one step closer to being able to replace this long-standing technology with laser igniters, which will enable cleaner, more ...
Apr 20, 2011 |
4.7 / 5 (27) |
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Heart-powered pacemaker could one day eliminate battery-replacement surgery
A new power scheme for cardiac pacemakers turns to an unlikely source: vibrations from heartbeats themselves.
Mar 02, 2012 |
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Puzzled Physicists Solve Decade-Long Discrepancies
(PhysOrg.com) -- A team led by physicists at the Science and Technology Facilities Council (STFC) and Brookhaven National Laboratory (BNL) have resolved a decade-long puzzle that is set to have huge implications ...
Oct 09, 2009 |
4.2 / 5 (31) |
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Energy-harvesting rubber sheets could power pacemakers, mobile phones
Power-generating rubber films developed by Princeton University engineers could harness natural body movements such as breathing and walking to power pacemakers, mobile phones and other electronic devices.
Jan 27, 2010 |
4.1 / 5 (15) |
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X-rays create a window on glass formation: First ever visualization of how powder becomes molten glass
Scientists have for the first time visualised the transformation of powder mixtures into molten glass. A better understanding of this process will make it possible to produce high quality glass at lower temperatures, ...
Apr 16, 2012 |
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Magnetism relieves electrons of their resistance
(PhysOrg.com) -- Physics is sometimes just like a criminal investigation. Researchers gather one piece of evidence after another in order to solve a mystery - for example, the question as to how unconventional ...
Dec 13, 2010 |
4.7 / 5 (30) |
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Nanoscale Structures with Superior Mechanical Properties Developed
(PhysOrg.com) -- Researchers at the California Institute of Technology have developed a way to make some notoriously brittle materials ductile -- yet stronger than ever -- simply by reducing their size.
Nanotechnology / Nanomaterials
Feb 09, 2010 |
4.6 / 5 (10) |
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Japanese company develops world's first ultra-thin piezoelectric waterproof speaker
(PhysOrg.com) -- Murata Manufacturing Co., Ltd., a company based in Kyoto in Japan, has made what they claim to be the world's first ultra-thin (0.9 mm thick) waterproof piezoelectric speaker.
Jun 15, 2010 |
4.1 / 5 (12) |
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New Sulfur- and Coking-Tolerant Material Could Expand Applications for Solid Oxide Fuel Cells
(PhysOrg.com) -- A new ceramic material described in this week's issue of the journal Science could help expand the applications for solid oxide fuel cells - devices that generate electricity directly from a ...
Oct 01, 2009 |
4.2 / 5 (11) |
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The right recipe: Engineering research improves laser detectors, batteries
Think of it as cooking with carbon spaghetti: A Kansas State University researcher is developing new ways to create and work with carbon nanotubes -- ultrasmall tubes that look like pieces of spaghetti or string.
Nanotechnology / Nanomaterials
Feb 06, 2012 |
5 / 5 (8) |
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Ferroelectric oxides do the twist
(Phys.org) -- Some materials, by their nature, do what we want them to do -- notably, the ubiquitous, semiconducting silicon found in almost every electronic device. But sometimes, naturally occurring materials ...
Apr 12, 2012 |
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New insights, and a new angle, on high-temperature superconductivity
(PhysOrg.com) -- A Princeton-led research team has revealed surprising information about how electron behavior influences the conduction of electricity in a class of high-temperature superconductors. An increased ...
Jun 29, 2009 |
4.8 / 5 (17) |
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Ceramic
A ceramic is an inorganic, nonmetallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure, or may be amorphous (e.g., a glass). Because most common ceramics are crystalline, the definition of ceramic is often restricted to inorganic crystalline materials, as opposed to the noncrystalline glasses.
The earliest ceramics were pottery[citation needed] objects or 27000 year old figurines made from clay, either by itself or mixed with other materials, hardened in fire. Later ceramics were glazed and fired to create a colored, smooth surface. Ceramics now include domestic, industrial and building products and art objects. In the 20th century, new ceramic materials were developed for use in advanced ceramic engineering; for example, in semiconductors.
The word "ceramic" comes from the Greek word κεραμικός (keramikos), "of pottery" or "for pottery", from κέραμος (keramos), "potter's clay, tile, pottery". The earliest mention on the root "ceram-" is the Mycenaean Greek ke-ra-me-we, "workers of ceramics", written in Linear b syllabic script. "Ceramic" may be used as an adjective describing a material, product or process; or as a singular noun, or, more commonly, as a plural noun, "ceramics".
For more information about Ceramic, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
