Tantalum oxide (Ta2O5, Ta2Ox) sputtering targets

Purity: 99.99%

Shape: Discs, disks, step disk, delta, plate, sheets or made per drawing

Diameter: 355.6mm (14") max.

Single piece Size: Length: <500mm, Width: <250mm, Thickness: >1mm, if larger size than this, we can do it as Tiles joint by 45 degree or 90 degree

Made sputtering targets method: hot pressing (HP), hot/cold isostatic pressing (HIP, CIP), and vacuum melting, vacuum sintering

Tantalum pentoxide, density: 8.20 g/cm3 ,melt point: 1872oC, white, odorless powder. It is a white solid that is insoluble in all solvents but is attacked by strong base and hydrofluoric acid. Both orthorhombic and hexagonal phases are known. Ta2O5 is a high refractive index, low absorption (i.e.colourless), inert material, which makes it useful for coatings.
Tantalum pentoxide is a highly robust material, decomposing thermally above 1470 °C.

Applications: electronics, high speed tools, DRAM capacitor, glass, chemicals, made for Tantalum metals, crystals, preparation of lithium tantalite single crystals, chemical processing e.t.c

Owing to its high band gap of 3.7 eV, Ta2O5 has found a variety of uses in electronics. It is used to make capacitors in automotive electronics, cell phones, and pagers, electronic circuitry; thin-film components; and high-speed tools. In the 1990s, interest grew in the use of tantalum oxide as a high-k dielectric for DRAM capacitor applications. It is used in on-chip MIM capacitors for RF CMOS integrated circuits. Due to its high index of refraction, Ta2O5 has been utilized in the fabrication of the glass of many photographic lenses.

Both low and high temperature polymorphs exist. The low temperature form is known as β-Ta2O5, and the high temperature form is known as α-Ta2O5. The transition point between these two forms has been reported as 1360 °C. The transition is slow but reversible. The structures of both polymorphs consist of chains built from octahedral and pentagonal bipyramidal polyhedra sharing opposite vertices. These chains are further joined by sharing edges.

We have only listed the more popular material. Please feel free contact us with any special requirements at any times, we will try to get back for you ASAP.