Property

UO₂

Gd₂O₃

APS Fisher sub sieve sizer, μm

0.8 - 1.0

0.5 - 1.0

BET specific surface area, m²/g

2.5 - 3.2

3.9 - 9.1

Tap density, g/cm³

2.2 - 2.8

0.8 - 1.3

Theoretical density, g/cm³

10.96

7.41

Flowability

Poor

Nil

Appearance

Fine particles, separable

Agglomerated

Dry sieve analysis

100% passes through 100 mesh

Forms agglomerates in sieving

Melting point, ˚C

2800

2420

Crystal structure

Face centered cubic

Cubic, monoclinic

Phase change temperature, ˚C

No phase change

1200

Range of nonstoichiometry

Wide

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