DOI: 10.18503/1995-2732-2025-23-1-85-91
Abstract
With the opening of new horizons in nuclear energy, especially in the context of the development of third-generation reactors and their improved versions, the requirements for safety and environmental sustainability of nuclear technologies have increased significantly. An important aspect of these requirements is the efficient functioning of materials for absorber elements, which play a key role in monitoring and regulating the nuclear reaction. Absorbers ensure the possibility of reliable reaction control, reducing risks and complying with environmental protection standards. Hafnates are one of the most promising grades of materials for use in new reactors. These compounds are characterized by high neutron absorption capacity and stable physicochemical properties at high temperatures. One of the main advantages of titanates is their ability to create effective structures that can quickly respond to changes in reactor operating conditions. This allows them to retain their characteristics even at high temperatures and radiation exposure. The advantages of using gadolinium as a burnable absorber, which can increase the initial fuel load and expand the reactor core, as well as the energy release field, are considered. The article presents the results of an experimental study of the corrosion resistance of gadolinium titanate obtained by a mechanochemical method. The tests are carried out in an autoclave at high temperatures and pressure, with measurements of changes in samples during heat treatment. The data obtained increase the efficiency of using additional material. The conclusion is made on the need to develop technologies for mass production of absorbing elements, as well as improving the quality control and reducing the costs of manufacture. It is noted that the development of new materials based on complex oxide ceramics of rare earth elements requires solving problems associated with the introduction into mass production, quality improvement and production costs reduction.
Keywords
hafnates, titanates, oxides, rare earth metals, mechanochemistry, synthesis, properties
For citation
Sharipzyanova G.Kh. Production and Application of Hafnates and Titanates of Rare Earth Metals. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2025, vol. 23, no. 1, pp. 85-91. https://doi.org/10.18503/1995-2732-2025-23-1-85-91
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