Oxygen-Free High Thermal Conductivity

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Q1)
OFHC copper refers to oxygen-free, high conductivity copper alloys, which typically are types of pure copper alloys. OFHC are metallic materials of the group nonferrous alloys, which is known for it is high conductivity of electrical and thermal ability. OFHC produced by the direct conversion of selected refined cathodes and castings under carefully controlled conditions to prevent contamination of the pure oxygen-free metal during processing. The method of producing OFHC copper ensures extra high grade of metal with a copper content of 99.98%. With so small a content of extraneous elements, the inherent properties of elemental copper are brought forth to a high degree. The most common OFHC copper alloys are C10100 (OFE) where it has 99.99% of copper and less 0.2%of oxygen and CAD10200 were it has 99.95% and around 1.5 ppm of oxygen. The companion that could be found in OFHC alloys are; Copper with 99.98% of weight, Oxygen with less than or equal to 1.5 ppm, Antimony with less than or equal to 0.1 ppm, Arsenic with less than or equal to 0.1 ppm, Nickel with less than or equal to 10 ppm, Manganese with less or equal to 0.5 ppm, Tin with less or more than 2 ppm, Zinc with less than or equal to 1 ppm, Tellurium with less than or equal to 2 ppm, Sulfur with less than or equal to 15 ppm, Silver with less than or equal to 25 ppm, Selenium with less than or equal to 3 ppm ,Phosphorus with less than or equal to 3 ppm, Bisumasu with less than or equal to 0.1 ppm, Cadmium with less than or equal to 0.1ppm,lead with less than or equal to 1ppm and Iron with less than or equal to 1 ppm . OFHC used mostly in building constructions and as electronic products.
Q2)
OFHC has grate properties that are desirable like good malleability, ductile, ...

... middle of paper ...

...ratures
Copper
and Copper Alloy Test
Temperature,
K Elastic Properties
No. Name and
Treatment Young’s
Modulus,
106 psi
(5%) Shear
Modulus,
106 psi
(2%)
102 Oxygen Free
(Cold drawn
60%) 295
195
76
20
4 17.3

20.0

22.0

Works Cited

http://www.copper.org/applications/electrical/building/ http://engineering.unt.edu/materials/ http://www.ejbmetals.com/pdf/datasheets-metal_strip/Ca101-102.pdf http://www.uom.ac.mu/faculties/foe/mped/Students_Corner/notes/EnggMaterials/copper.pdf http://info.ornl.gov/sites/publications/files/Pub35345.pdf http://www.sequoia-brass-copper.com/store/alloy-c10100-ofe-copper.html http://en.wikipedia.org/wiki/Oxygen-free_copper http://phys.org/news/2012-01-metal-alloys-energy-environment-benefit.html pic
http://www.orthop.washington.edu/?q=patient-care/articles/what-is-hip-replacement-a-review-of-total-hip-arthroplasty.html

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