The Advancement of Neutron Shielding Materials for the Storage of Spent Nuclear Fuel

Table 1

Advantages and disadvantages of neutron shielding metal alloy materials.

Materials	Boron content (wt%)	Advantages	Disadvantages
Borated stainless steel	0.20–2.25	Irradiation resistance, corrosion resistance, high temperature resistance	Low boron solubility, highly enriched ^10B
B4C/Al composite	<25	Low density, low porosity, good mechanical properties, corrosion resistance	Various effects in the process of manufacturing
B4C/Al ceramics	27.4–50.9	Low density, high boron content	High porosity, poor structure performance, low corrosion resistance
B/Al alloy	0.5–4.5	Low density, high thermal conductivity	Low mechanical performance, low boron solubility
Amorphous alloy	<20	Excellent neutron shielding efficiency, high corrosion resistance	Distribution of alloying elements, interfacial reaction