Uranium zirconium hydride (UZrH, U-ZrHx), a dispersion of metallic uranium in a δ-ZrH1.6 matrix, is used as the fuel in TRIGA reactors.
[1] UZrH fuel is used in most research reactors at universities and has a large, prompt negative fuel temperature coefficient of reactivity, meaning that as the temperature of the core increases, the reactivity rapidly decreases.
[2] Franco-Belge de Fabrication du Combustible, in Romans-sur-Isère, France, is the only manufacturer of this fuel.
[3] This inorganic compound–related article is a stub.
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