Archive for the ‘Zirconium’ Category
Monday, September 17th, 2007
The use of advanced zirconia ceramics has significantly improved the performance, reliability and durability of the high-pressure fuel systems used in Cummins Inc. diesel engines. This application is a prime example of how advances in materials technology can play a key role in the development of low-emissions engines.
To reduce ...
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Monday, September 17th, 2007
Owing to its diverse paragenesis and resistance to weathering, zircon is one of the most widely distributed and persistent minerals in Earth's shallow crust. It is found in most types of felsic and mafic intrusive igneous rocks including many complex pegmatites known for other, more familiar minerals, and because of ...
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Monday, September 17th, 2007
Zirconium carbide (ZrC) films were grown on Si (100) substrates using magnetron sputtering where the growth temperature (T^sub s^) was varied from 25°C to 290°C. The microstructure and resistivity of the as-deposited ZrC films were examined. The results reveal that nano-crystalline ZrC films with grain size less than 5 nm ...
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Monday, September 17th, 2007
Yet-Ming Chiang and his colleagues at the Massachusetts Institute of Technology say that modifying the composition of lithium-ion automotive batteries with metallic elements such as niobium or zirconium dramatically improves conductivity and safety, reports Nature Materials.
Scientists have long searched for cheaper and safer alternatives to the lithium metal oxides commonly ...
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Tuesday, April 4th, 2006
Background
The exciting field of smart materials is expanding rapidly, with one of the most interesting areas being that of shape memory alloys. A shape memory alloy (SMA) can undergo substantial plastic deformation, and then be triggered into returning to its original shape by the application of heat. These properties have ...
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Tuesday, April 4th, 2006
Background
The use of zirconium carbide in engineering applications has been limited by the lack of a fully developed, commercially viable sintering process. Hot pressing powders at between 1900°C and 2300°C can achieve densities of greater than 93%. Additives such as ZrB2 enhance the sintering and produce ...
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Tuesday, April 4th, 2006
Background
Positive Materials Identification (PMI) enables a components material grade or chemical analysis to be accurately confirmed in-situ using portable analytic equipment.
Positive Materials Identification Equipment
Bodycote Materials Testing possesses an array of modern PMI equipment and offers a comprehensive accredited service. Our inventory includes Optical Emission Spectrometers, employing argon flushing for improved ...
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Tuesday, April 4th, 2006
The Orthopaedic division of Smith and Nephew Inc have developed a new knee implant. The implant is patented and known as Oxinium.
Oxinium implants are made of an oxidized zirconium metal. It is claimed to be of greater benefit to younger, more active recipients of knee replacements. This is because the ...
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Monday, February 13th, 2006
Zirconia as a pure oxide does not occur in nature but it is found in baddeleyite and zircon (ZrSiO4) which form the main sources for the material. Of the two of these, zircon is by far the most widespread but it is less pure and requires a significant amount ...
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