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43664 Hafnium boride, 99.5% (metals basis excluding Zr), Zr <2%

CAS Number
12007-23-7
Synonyms

Stock No. Size Price ($) Quantity Availability
43664-09 10g 54.80
43664-18 50g 222.00
43664-30 250g 985.00
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Hafnium boride, 99.5% (metals basis excluding Zr), Zr <2%

MDL
MFCD00016125
EINECS
234-500-7

Chemical Properties

Formula
B2Hf
Formula Weight
200.11
Form
-325 Mesh Powder
Melting point
3250°
Density
10.5
Storage & Sensitivity
Ambient temperatures.
Solubility
Insoluble in water.

Applications

Hafnium boride is used in wear resistant coatings. It is also employed as a nuclear reactor control rod. Furthermore, it is used in hypervelocity re-entry vehicles like ICBM heat shields or aerodynamic leading-edges. It is useful in the preparation of high temperature composites in conjunction with silicon carbide (SiC).

Notes

Incompatible with strong oxidizing agents.

Literature References

Pan, Y.; Huang, H.; Wang, X.; Lin, Y. Phase stability and mechanical properties of hafnium borides: A first-principles study. Comput. Mater. Sci. 2015, 109, 1-6.

Winder, S. L.; Ruggles-Wrenn, M. B.; Parthasarathy, T.; Key, T.; Carney, C. M. Thermo-chemical compatibility of hafnium diboride with yttrium aluminum garnet at 1500°C in air. J. Eur. Ceram. Soc. 2015, 35 (9), 2437-2444.

Other References

Harmonized Tariff Code
2850.00
TSCA
Yes

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