HAFNIUM SILICIDE Chemical Properties

Melting point:

1680°C

Density 

8,02 g/cm³

form 

Powder

color 

gray orthorhombic crystals, crystalline

Water Solubility 

it is insoluble in water.

Crystal Structure

Orthorhombic

Exposure limits

ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3

EPA Substance Registry System

Hafnium silicide (HfSi2) (12401-56-8)

Safety Information

TSCA 

Yes

MSDS

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HAFNIUM SILICIDE Usage And Synthesis

Chemical Properties

gray powder(s); rhomb, a=0.3677nm, b=1.455nm, c=0.3649nm; hardness 930 kgf/mm2; as 99.5% pure material, used as sputtering target to produce wear-resistant films and semiconducting films for use in integrated circuits [KIR80] [STR93] [CER91]

Uses

They have been used as ohmic contacts, Schottky barrier contacts, gate electrodes, local interconnects, and diffusion barriers. FeSi2 has become the remarkable source as high temperature thermoelectric material. It is also used as a powder in ceramic materials.

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