Nuclear-Grade Hafnium Hydride Powder

Hafnium Hydride Powder is a high-purity, fine metal hydride used in nuclear reactors, vacuum tube technologies, and advanced metallurgy. Known for its excellent neutron absorption properties and thermal stability, it is essential in specialized high-temperature applications. Available in various particle sizes and purities, it meets stringent industry standards for research and industrial use.

Princeton Powder is a leading supplier of  Hafnium refractory ceramic powder. Hafnium series powders including Hafnium Carbide Powder, Hafnium Nitride Powder, and Hafnium Boride powder are for sale in bulk.

Formula

Hafnium Hydride HfH2

Morphology

Irregular

Appearance

Silver Gray powder

Particle Size

 -60 mesh, 1-10 um, can be customized

Other Name

Hafnium Dihydride

Density

N/A

CAS Number

13966-92-2

Purity

99%-99.5%

Description of Hafnium Hydride HfH2 Powder

Hafnium Hydride (HfH₂) Powder is a high-density, refractory metal hydride used in nuclear control rods, pyrotechnic igniters, and aerospace alloys. With exceptional neutron absorption and thermal stability, it serves critical roles in reactors and propulsion systems. Available in 1-50µm particle sizes at 99.5%+ purity, it meets MIL-SPEC and ISO standards for demanding applications.

Chemical Composition of Hydrogenated Hafnium Powder

Product (Zr<1.5%)

Chemical Composition ( % )

Hf+Zr+H

H

O

N

C

Fe

HfH2

99.5

1

0.15

0.01

0.04

0.05

Common specifications

-60 mesh, 400 mesh, 1 um-10 um ; various specifications can be produced, the finest D50 can be 0.5 um

Package

( 1 ) Vacuum packed in plastic bag, net weight 1-2kg/ bag.

( 2 ) Packed in iron drum lined with plastic bag, net weight 20-50kg/ drum.

( 3 ) Special packaging is available upon request.

Application of Bulk Hafnium Hydride HfH₂ Powder

Nuclear Industry: Neutron absorber in control rods (replaces cadmium)

Defense & Aerospace: Solid-fuel rocket igniters, propulsion additives

Powder Metallurgy: Alloying agent for high-temperature ceramics

Energy: Hydrogen storage material for thermal batteries

Hafnium Dihydride Powder Scholar Articles

Hydrogen desorption kinetics of hafnium hydride powders

Abstract: The kinetics of hydrogen gas release from hafnium hydride are investigated by combining experiments and density functional theory. The material is a candidate neutron shield for compact nuclear reactors, where hydrogen release will lead to a degradation in moderating function.