Heat-resistant high-conductivity materials

1. Bronzes containing magnesium are superior to all alloys tested up to 300°, both in long-term and short-term tests. Additional alloying of zirconium and chromium bronzes with magnesium permits substantial inhibition of structural changes associated with weakening under the influence of high temperatures and tensile stresses. 2. Among the alloys tested, the heat resistance is highest for the chromium-zirconium bronze. 3. Alloying makes it possible to avoid intercrystalline fracture of copper under the prolonged influence of high temperatures and tensile stresses.