769401
Hafnium(IV) oxide
pellets, diam. × thickness 13 mm × 5 mm
Synonym(s):
Hafnia
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About This Item
Empirical Formula (Hill Notation):
HfO2
CAS Number:
Molecular Weight:
210.49
UNSPSC Code:
12352303
NACRES:
NA.23
EC Number:
235-013-2
MDL number:
InChI key
CJNBYAVZURUTKZ-UHFFFAOYSA-N
InChI
1S/Hf.2O
SMILES string
O=[Hf]=O
form
pellets
diam. × thickness
13 mm × 5 mm
impurities
≤0.1% PBB (polybrominated biphenyls), ≤0.1% PBDE (polybrominated diphenyl ethers)
density
9.68 g/mL at 25 °C (lit.)
cation traces
Cd: ≤0.01%, Co: ≤0.0005%, Cr: ≤0.005%, Cu: ≤0.0005%, Fe: ≤0.005%, Hg: ≤0.1%, Pb: ≤0.1%, Ti: ≤0.005%, V: ≤0.005%, Zr: ≤0.5%
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Application
High dielectric constant of hafnia makes it suitable for application in metal oxide based semiconductor devices. It also finds applications as optical coating materials
Storage Class
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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Dual wavelength laser-induced damage threshold measurements of alumina/silica and hafnia/silica ultraviolet antireflective coatings.
Mrohs, M., et al.
Applied Optics, 55(1), 104-109 (2016)
Recent progress in ab initio simulations of hafnia-based gate stacks
Zhu, H., et al.
J. Mater. Sci., 47(21), 7399-7416 (2012)
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