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3 years ago in Robotics By Vishwas Rao

What materials maintain tensile strength at 1500°C for a smelting robot arm?

For a robotic arm operating in a smelting environment at ~1500°C, what material options provide the necessary tensile strength and thermal resistance?

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By Muhammad Umar Farooq Answered 2 years ago

Very few materials retain useful tensile strength at 1500°C. Primary candidates are refractory metals like tungsten and molybdenum (but these oxidize rapidly), specialized nickel-based superalloys (e.g., certain Inconel grades, near their limit), and advanced ceramics like silicon carbide (SiC) or alumina composites. Ceramics offer the best oxidation resistance but are brittle. A cooling system for the arm is often a practical necessity.

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