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Highlights•Al/Cu composite wires exhibit three intermetallic compounds whatever the annealing.•Al/Cu intermetallics are formerly identified by TEM and XRD analysis.•Intragranular diffusion and grain boundaries short-circuits operate simultaneously.•Effective heat of formation model explains the stability of the three intermetallics.

The application note explains that the most simplistic method of ferreting out CCA cable—weighing the box because if it is lighter than it should be, that’s a telltale sign of aluminum’s presence—has quickly been countered by the CCA producers who simply add gravel or something similar to the box to increase its weight.

Lear's alternative wire technology reduces mass and copper dependence by replacing copper with copper clad steel (CCS). High tensile strength steel technology enables usage of smaller wire diameter while still meeting all vehicle conductivity requirements.

and manufacturer of low cost, high quality alternatives to pure copper products, including refined copper products and superfine and magnet wire, as well as copper clad aluminum ("CCA") wire,

“Innovation in green materials is driving, in a sense, a regression, in which materials made from bio-based or quickly regenerating resources that are low in embodied energy and carbon, are re-emerging,” says Eric Bloom, senior research analyst with Navigant Research.  “Examples include timber structures and cladding, straw-bale construction, lime renders and mortars, cellulose insulation, bamboo flooring, and natural mineral and fiber floor coverings.”

DALIAN, China, Dec. 14 /PRNewswire-Asia-FirstCall/ -- Fushi Copperweld, Inc., (the "Company") (Nasdaq: FSIN), the leading global manufacturer and innovator of copper-clad bimetallic wire used in a variety of telecommunication, utility, transportation and other electrical applications, today announced that the Company's subsidiary, Fushi International (Dalian) Bimetallic Cable Co., Ltd., has been appointed to form and organize China's first ever composite conductor working group by the National Standardization Administration of China. The National Standardization Administration (SAC), established in April 2001, is authorized by the State Council of the People's Republic of China to draft, formulate, and implement state laws and regulations on product standardization.

The industry bodies point out that cables containing copper clad aluminium conductors instead of solid copper conductors violate several safety standards.