Sentences with word «zircaloy»

Nuclear fuel rods are made of hundreds of small pellets of enriched uranium placed end - to - end inside hollow tubes of zircaloy that are about a half - inch across.

While zircaloy loses strength as temperature increases — becoming 2 percent weaker for every 10 C increase in temperature and losing all strength at about 1300 C, Stempien says — the strength of the SiC ceramic remains essentially constant to temperatures well above 1500 C.

When it gets hot enough, zircaloy reacts with steam to produce hydrogen, a hazard in any loss - of - coolant nuclear accident.

It utilizes the same 10 x 10 lattice design used in GNF2, and employs GNF's NSF (1.0 % niobium - 1.0 % tin - 0.35 % iron) zirconium alloy channel material which GNF says significantly reduces fuel channel distortion compared to typical zircaloy based channel materials.

Response: SMR - 160 uses commonly available nuclear fuel pellets in zircaloy tubes (fuel rods) manufactured by many qualified suppliers around the world.

There are still further tests to be done: In particular, while zircaloy tubes can have their ends capped by welding a metal disk onto each end, ceramic can't be welded, so a suitable bonding agent will need to be found.

Under the extreme conditions of an accident, the corrosion rate was 100 to 1,000 times less than that of zircaloy.

That hydrogen buildup was the result of hot steam coming into contact with overheated nuclear fuel rods covered by a cladding of zirconium alloy, or «zircaloy» — the material used as fuel - rod cladding in all water - cooled nuclear reactors, which constitute more than 90 percent of the world's power reactors.

For this purpose, the factory receives the zircaloy bars from which the plugs are made.