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Latest Alloys Stories

2008-08-09 03:00:22

We have no clue regarding the history, age or genre of these two peasant figures. Can you identify them? - Butrcup A: We assume the figures are fairly large - at least 18 to 24 inches tall - and will base our valuation upon that supposition. (We ask readers to send objects' exact dimensions so we can provide a more complete answer.) This pair was made from a silvery-gray metal that is rather soft and easily cast. It's primarily zinc alloyed with small amounts of one or more other...

2008-08-03 03:00:20

By Gao, Michael C Dogan, Omer N; King, Paul; Rollett, Anthony D; Widom, Michael The purpose of this work is to predict elastic and thermodynantie properties of chromium-based alloys based on first-principles calculations and to demonstrate an appropriate computational approach to develop new materials for high-temperature applications in energy systems. In this study, Poisson ratio is used as a screening parameter to identify ductilizing additives to the refractory alloys. The results...

2008-07-24 03:00:55

By Lee, Kyuhong Lee, Sang-Bok; Lee, Sang-Kwan; Lee, Sunghak In the present study, a Zr-based amorphous alloy matrix composite reinforced with tungsten continuous fibers was fabricated without pores or defects by a liquid pressing process; the microstructures and mechanical properties of the fibers were investigated. Approximately 60 vol pct of the fibers was distributed inside the amorphous matrix, although the matrix of the composite also contained a small number of polygonal crystalline...

2008-07-17 03:00:35

By Lee, Sang-Bok Lee, Sang-Kwan; Lee, Sunghak; Kim, Nack J The feasibility to fabricate the tungsten and STS-fiber- reinforced amorphous alloy matrix composites was verified by analyses of the thermal stress and cooling behavior between matrix and metallic fibers. Approximately 50 to 65 vol pct of fibers were homogeneously distributed inside the amorphous matrix, although the matrix of the STS-fiber-reinforced composite contained a small amount of crystalline phases. The compressive test...

2008-07-13 06:00:21

bahrain-based capivest has plans to establish a $1 billion dollar company that will build the first-of-its kind magnesium smelter, meeting environmental standards observed internationally, in the middle east and north africa (mena) region. capivest has signed an agreement representing a strategic alliance with tru group, (an international technical advisory team with extensive experience in engineering, planning and managing technology-intensive industrial projects) to oversee the technical...

2008-07-09 21:00:25

By HELAINE FENDELMAN and JOE ROSSON, SCRIPPS HOWARD NEWS SERVICE Q. We have no clue regarding the history, age or genre of these two peasant figures. Are you able to help us identify them? We assume the figures are fairly large at least 18 to 24 inches tall and will base our valuation upon that supposition. (We ask readers to send objects' exact dimensions so we can provide a more complete and accurate answer.) This pair were made from a silvery-gray metal that is rather soft and...

2008-01-25 09:50:00

Dental amalgam tooth fillings do not adversely affect children's brain development and neurological status, researchers report in the February issue of The Journal of the American Dental Association. The authors of the report"”members of a joint team from the University of Lisbon, Portugal, and the University of Washington, Seattle"”studied the possible neurological effects of dental amalgam tooth restorations. Dental amalgam contains elemental mercury combined with other metals...

2006-04-18 15:21:21

CHICAGO (Reuters) - Silver dental fillings widely used to fill cavities do not appear to cause brain damage in children even though the mercury in them is a known neurotoxin, according to studies published on Tuesday. "Dentists and parents I think can be very assured from the results of this study that they can continue to put silver amalgam in children's mouths to fill cavities," said Sonja McKinlay of New England Research Institutes, Boston, who was involved in one of the studies....

2005-10-13 04:41:37

The use of magnesium alloys in engineering applications is becoming increasingly important as a relatively low density allows savings in energy consumption and therefore reduction in air pollution. An associated reduction in inertia also makes these alloys potential candidates for friction components. Magnesium alloys, however, have low wear resistance and low hardness and sticking or seizure phenomena easily occur with the counter materials such as steel, copper and aluminum alloys. In a...

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2004-12-23 08:58:56

Review finds insufficient evidence they cause health problems HealthDayNews -- There's insufficient evidence to support a link between dental amalgam fillings and health problems, according to a review of nearly a thousand scientific studies. Dental amalgam is an alloy made of silver, copper, tin and zinc, bound by elemental mercury. Rare cases of allergic reactions are the only time that amalgam may be linked to health problems, the review concluded. The independent review was conducted by...


Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.