Recently, the Russian National Atomic Energy Corporation website reported that the Russian National Atomic Energy Corporation nuclear fuel subsidiary has manufactured the first batch of accident-resistant nuclear fuel components for commercial reactors at the Novosibirsk Chemical Enrichment Plant. This batch of nuclear fuel assemblies contains experimental accident-resistant fuel rods, which have now been accepted.
In the first quarter of 2020, a batch of nuclear fuel assemblies will be installed in a VVER-1000 reactor at the Rostov nuclear power plant in Russia, including 3 sets of TVS-2M accident-resistant nuclear fuel assemblies, each of which contains 12 accident-resistant nuclear fuel rods There are two different options for rod cladding materials: one is chromium-plated zirconium alloy and the other is chromium-nickel alloy. These materials all make the cladding more heat resistant.
High temperature resistant glass ceramic ring is a new material developed with the application of new processes such as sintering and sol-gel methods in the preparation of glass ceramics. When high temperature resistant crystals such as mullite, spinel, garnet are precipitated in the glass ceramic and the content is high, the material can withstand high temperatures. For example, in the garnet glass ceramic, not only the high temperature resistant crystallites but also some mullite crystals are precipitated, and the residual glass phase is surrounded by crystals, which can be used at a high temperature of about 1400 °C.
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