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How is chain reaction controlled in a nuclear power plant? Chain reaction is controlled through using neutron absorbing materials as reactor control rods (of high neutron absorbing material), boron, and/or cadmium.
Nuclear fuel pellets are compounds consisting of center and outside shell where in most world's nuclear reactors, the center contains a brittle uranium blend, and the solid outside shell is made of a metallic alloy containing the element zirconium.ukushima accident and the search for safer nuclear power plants. The working principle in each nuclear plant starts with fission. The typical core of a nuclear power plant uses the heat generated by fission of uranium and plutonium in fuel rods to heat and then pressurize water.