• Hafnium Oxide Powder Synonyms:

hafnium(IV) oxide powder, hafnium dioxide powder, hafnium oxide powder, hafnium oxide (HfO2), hafnium oxide powder, Hf02 powder, dioxohafnium, CAS #12055-23-1  

• Hafnium Oxide Powder Formula:

   HfO₂

• Hafnium Oxide Powder Description:

a) Hafnium(IV) oxide is the inorganic compound with the formula HfO2. Also known as hafnia, this colourless solid is one of the most common and stable compounds of hafnium. It is an electrical insulator with a band gap of approximately 6 eV. Hafnium dioxide is an intermediate in some processes that give hafnium metal.

b) It has a low thermal expansion and a high inversion temperature.

c) Hafnium(IV) oxide is quite inert. It reacts with strong acids such as concentrated sulfuric acid and with strong bases. It dissolves slowly in hydrofluoric acid to give fluorohafnate anions. At elevated temperatures, it reacts with chlorine in the presence of graphite or carbon tetrachloride to give hafnium tetrachloride. Source: Wikipedia

• Hafnium Oxide Powder Typical Chemistries Available:

99.999% (Spectro grade), 99.95% (Zr= <0.5%), 99.9% (Vacuum deposition grade), and 99% (Zr= <2%)

• Hafnium Oxide Powder Typical Physical Properties Available:

a) Sintered pieces & tablets, targets, and fine powder

• Hafnium Oxide Powder Nominal Physical Constants:

• Hafnium Oxide Powder Typical Applications:

  a) Hafnia is used in optical coatings, and as a high-k dielectric in DRAM capacitors. Hafnium-based oxides are currently leading candidates to replace silicon oxide as a gate insulator in field effect transistors.

  b) The compound appears to have been chosen by both IBM and Intel as a substrate for future integrated circuits, where it may help in the continuing effort to increase logic density and clock speeds, or to lower power consumption, in computer processors.

  c) Because of its very high melting point, hafnia is also used as a refractory material in the insulation of such devices as thermocouples, where it can operate at temperatures up to 2500 °C. Source: Wikipedia

•   Hafnium Oxide Powder Typical Packaging: 

50 lbs. bags, poly-lined fiber drums and bulk bags

• Hafnium Oxide Powder TSCA (SARA Title III) Status:

Listed

• Hafnium Oxide Powder CAS Number:

CAS# 12055-23-1