Hafnium
Hafnium (Hf) is a lustrous, silvery metal that is corrosion-resistant and chemically similar to zirconium. It has an atomic number of 72 and an atomic mass of 178.49 u. Hafnium exhibits a high melting point of 2233°C (4051°F), a boiling point of roughly 4603°C (8317°F), and a density of 13.31 g/cm³. It has a hexagonal close-packed crystal structure and is typically found in mineral ores like zircon.
In electronics, hafnium plays a crucial role due to its ability to form stable high-k dielectric materials, which are used in semiconductor devices to increase performance. Hafnium oxide (HfO2) and hafnium silicate (HfSiO4) are employed in metal-oxide-semiconductor field-effect transistors (MOSFETs) and in dynamic random-access memory (DRAM) as gate insulators, improving device scalability, leakage current reduction, and overall efficiency.
The excellent thermal and mechanical stability of hafnium-based compounds under extreme conditions also makes them suitable for use in high-power and high-frequency applications. Furthermore, due to its high neutron absorption cross-section, hafnium is valuable in the control rods of nuclear reactors, though this is outside the realm of electronics. In summary, hafnium's unique properties have made it a material of choice in advanced electronic devices, contributing to the miniaturization and enhancement of modern technology.
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Hafnium Metal Products
QS Rare Elements has competitive high purity Hf products. Semi finished products in stock. Final products such as sputter targets, wire and evaporation materials can be delivered with short lead time.
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Zirconium and Hafnium Crystal Bars
MOQ:$300
Catalog No. RM40-CB(Zirconium), RM72-CB (Hafnium)
Typical Lead Time: 2-3 weeks
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Hafnium Oxide (HfO2) Sputtering Targets
Composition: Hafnium Oxide (HfO2)
Catalog No.DPOX72ST
Purity:99.9% ~ 99.99%Please click for discount and other size
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Hafnium (Hf) Sputtering Targets
Composition: Hafnium
Catalog No.DPME72ST
Purity:99.95%Please click for discount and other size
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Hafnium Boride (HfB2) Sputtering Targets
Composition: Hafnium Boride (HfB2)
Catalog No.DPBO72ST
Purity:99.5%
Please click for discount and other sizeClick here for the specifications of HfB2 sputter target
Click here for the SDS document of HfB2 Sputter Target
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Hafnium Fluoride (HfF4) Sputtering Targets
Composition: Hafnium Fluoride (HfF4)
Catalog No.DPHL72ST
Purity:99.9%Please click for discount and other size
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Hafnium Carbide (HfC) Sputtering Targets
Composition: Hafnium Carbide (HfC)
Catalog No.DPCB72ST
Purity:99.5%Please click for discount and other size