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Hafnium Metal/ Sputtering Target

CAS #: 7440-58-6
Linear Formula: Hf
EC No.: 231-166-4

Hafnium metal is a shiny silver-gray transition metal with a molecular formula of Hf. It does not react with dilute hydrochloric acid, dilute sulfuric acid and strong alkali solution, but is soluble in hydrofluoric acid and sulfuric acid. At high temperatures,Hafnium can also be directly combined with gases such as oxygen and nitrogen to form oxides and nitrides. Hafnium has a high neutron absorption cross section and can be used as a control material for the reactor.


Product Series

ProductProduct Code

Safety Data

Technical Data

Hafnium Metal 99.9%

ET-HfM-01

TIM图片20180524114629_副本(001)TIM图片20180524114629_副本(001)
Hafnium Metal 99.99%ET-HfM-01TIM图片20180524114629_副本(001)


Properties (Theoretical)

Molecular Weight178.49
AppearanceSilver
Melting Point2227°C
Boiling Point4602°C
Density13.31 g/cm3
Electrical Resistivity35.1 microhm-cm @ 25°C
Electronegativity1.3 Paulings
Heat of Vaporization155 K-Cal/gm atom at 4602°C
Poisson's Ratio0.37
Specific Heat0.035 Cal/g/K @ 25 °C
Tensile StrengthN/A
Thermal Conductivity0.230 W/cm/K @ 298.2 K
Thermal Expansion(25 °C) 5.9 µm·m-1·K-1
Vickers Hardness1760 MPa
Young's Modulus78 GPa


Health & Safety Information

Signal WordN/A
Hazard StatementsN/A
Hazard CodesN/A
Precautionary StatementsP210
Flash PointNot applicable
Risk CodesN/A
Safety StatementsN/A
RTECS NumberMG4600000
Transport InformationNONH
WGK Germanynwg


Packaging Specifications

Finished packaging: 50 kg / barrel, 500 kg / tray

Sample packaging: 500 g / bag, 1 kg / bottle


Application

Hafnium is Plasticity, easy to process, high temperature resistant and corrosion resistant. It is an important material in the atomic energy industry. The thermal neutron capture cross section of the crucible is an ideal neutron absorber, which can be used as a control rod and protection device for the atomic reactor. Hafnium powder can be used as a rocket propeller. The cathode of an X-ray tube can be manufactured in the electrical industry. The bismuth alloy can be used as a frontal protection layer for rocket nozzles and gliding re-entry vehicles. Hf-Ta alloys can be used to make tool steels and resistive materials. In the heat resistant alloy, niobium is used as an additive element, for example, an alloy of tungsten, molybdenum or niobium is added. HfC can be used as a cemented carbide additive due to its high hardness and melting point. 4TaCHfC has a melting point of about 4215 ° C and is the compound with the highest melting point known. It can be used as a getter for many aeration systems. The getter removes unwanted gases such as oxygen, nitrogen, etc. present in the system. It is often used as an additive to hydraulic oil to prevent the volatilization of hydraulic oil during high-risk operations and has a strong resistance to volatility.

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金属铪颗粒(001)金属铪颗粒3(001)


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