Zircaloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium_______________?
Correct answer: A. Tin, nickel, iron and chromium
- A. Tin, nickel, iron and chromium
- B. And graphite
- C. And copper
- D. None of these
Explanation
Zircaloy is primarily zirconium alloyed with small amounts of tin, iron, nickel and chromium. This combination gives low neutron absorption and good corrosion resistance in reactor coolant, unlike additions such as graphite or copper.
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