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Gadolinium oxide (Gd₂O₃) possesses an exceptionally high thermal neutron absorption cross-section (~49,000 barns), greatly exceeding boron carbide (B₄C) and silicon carbide (SiC) in thermal neutron capture efficiency to terminate chain reactions effectively.
It maintains structural integrity under intense radiation fields, showcasing slow degradation of properties and ensuring an extended service lifetime.
After neutron absorption, the radioactive isotopes formed from gadolinium oxide remain relatively stable, facilitating easier subsequent handling processes compared to alternatives like europium oxide.
With a melting point exceeding 2400°C, it remains structurally stable in extreme high-temperature reactors and industrial thermal processing environments.
Maintains high mechanical strength, hardness, and excellent resistance to thermal creep at elevated temperatures, preventing structural deformation.
Exhibits outstanding corrosion resistance against molten nuclear fuels (such as uranium and plutonium) and aggressive high-temperature chemical environments.
Its low coefficient of thermal expansion matches well with various alloys and ceramic materials, effectively reducing thermal stress during cycling.
Gadolinium Oxide has one of the highest thermal neutron absorption cross-sections in nature (~49,000 barns), which makes it exceptionally efficient at capturing thermal neutrons and terminating chain reactions compared to materials like boron carbide (B₄C) and silicon carbide (SiC).
It demonstrates high radiation stability, retaining its structural integrity in intense radiation environments with slow performance degradation, resulting in a long operational service life.
Compared to other neutron-absorbing materials such as europium oxide, the radioactive isotopes generated by gadolinium oxide post-neutron absorption are relatively stable, which simplifies the subsequent handling and disposal processes.
Gadolinium Oxide has a high melting point exceeding 2400°C. This allows it to remain structurally and mechanically stable even in high-temperature reactors or demanding high-temperature industrial processes.
Yes, it shows excellent chemical inertness and corrosion resistance when exposed to various molten metals, including nuclear fuels like uranium and plutonium, under high-temperature conditions.
It features a low thermal expansion coefficient that matches well with many alloys and ceramics, which helps minimize thermal stress during thermal cycling and prevents structural deformation.
