634867
Silicon dioxide
single crystal substrate, optical grade, 99.99% trace metals basis, L × W × thickness 10 mm × 10 mm × 0.5 mm
Synonym(s):
Cristobalite, Quartz, Sand, Silica
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About This Item
Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
262-373-8
MDL number:
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
SMILES string
O=[Si]=O
grade
optical grade
assay
99.99% trace metals basis
form
solid
hardness
7.0 mohs
L × W × thickness
10 mm × 10 mm × 0.5 mm
refractive index
n20/D 1.544 (lit.)
mp
1610 °C (lit.)
transition temp
Tm 573.1 °C (phase change)
density
2.6 g/mL at 25 °C (lit.), 2.684 g/mL
Quality Level
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Application
SiO2 is majorly used as a substrate material with excellent thermo-mechanical properties in a variety of applications which include:
- vapour deposition
- phase deposition
- atomic force microscopy probes(AFM)
- spin coating
- electronic based devices
Features and Benefits
An excellent substrate for microwave filters for applications in the wireless communication arena.
Physical form
Crystalline, hexagonal (a = 4.914 Å, c = 5.405 Å)
Other Notes
specific heat = 0.18 cal/g; thermoelectric constant = 1200μV/°C @ 300 °C; thermal conductivity = 0.0033 cal/cm°C; themal expansion (x10-6) = α11: 13.71, α33: 7.48; Q value = 1.8 × 106 min; acoustic velocity, SAW = 3160 m/sec; frequency constant, BAW = 1661 kHz/mm; piezoelectric coupling = K2 BAW: 0.65%, SAW: 0.14%
Storage Class
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Electrical and optical properties of ZnO transparent conducting films by the sol-gel method.
Lee J, et al.
Journal of Crystal Growth, 247(1-2), 119-125 (2003)
Growth model of bamboo-shaped carbon nanotubes by thermal chemical vapor deposition.
Lee CJ and Park J
Applied Physics Letters, 77(21), 3397-3399 (2000)
Measurement of the adhesion force between carbon nanotubes and a silicon dioxide substrate.
Whittaker JD, et al.
Nano Letters, 6(5), 953-957 (2006)
Oxygen-aided synthesis of polycrystalline graphene on silicon dioxide substrates.
Chen J, et al.
Journal of the American Chemical Society, 133(44), 17548-17551 (2011)
The effect of calcination temperature on the surface microstructure and photocatalytic activity of TiO2 thin films prepared by liquid phase deposition.
Yu J, et al.
The Journal of Physical Chemistry B, 107(50), 13871-13879 (2003)
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