one .About Fluorocrystalline Mica
Fluorocrystalline
mica, also known as fluorphlogopite mica, synthetic mica, artificial mica,
synthetic mica crystal, belongs to the silicate type artificial mica crystal,
is under the high temperature condition of 1500°C, through strict process
conditions and material ratio, in platinum The mica crystals smelted in the
yttrium have a chemical formula of KMg3(AISi3O10)F2(OH)-, and do not contain
(OH)-. The (OH)-hydroxyl group is replaced by F-(fluoro), which is similar to the
fluorite mica. Materials commonly used in the general industry are natural
mica. Natural mica is an underground ore naturally formed and belongs to the
class of silicates. Most of the industrial mica used is phlogopite (brown) and
muscovite. Its ideal chemical formula is KAI2(AISi3O10)(OH)2. OH)-(Hydroxy),
due to the presence of hydroxyl (water molecules), its performance in all
aspects is far lower than that of fluorocrystalline mica.
The main
characteristics of fluoride crystal mica:
1, high temperature:
can work long-term in the 1100 °C environment.
The testing
department of the Changchun Institute of Applied Chemistry, Chinese Academy of
Sciences (nationally recognized testing institute) tested the thermal weight
loss of 8% at 1100°C for 48 hours, and the melting and devitrification
temperature was 1375°C.
2. Electrical
insulation: The volume resistivity is 10 times higher than natural mica.
Electrical breakdown strength is PTFE
Lean 10 times.
3, hot and cold
blasting stability is very good
5 cycles of
-40°C~70°C at the 5th Saibao Lab of the Ministry of Information Industry
Inspection, all
qualified.
4, anti-corrosion:
Fluorophlogopite does
not react with acid and alkali solutions, and does not react with water. Under
the long-term (2 to 3 years) scouring of high-temperature and high-pressure
water (including acid and alkali), the original clarity and transparency can
still be maintained.
5, high frequency
performance:
The dielectric
constant of fluorite mica is 4.6 ε, and the dielectric loss is (1~4)×10 −4 tg
δ, and the dielectric loss is very low. And because of the pure texture, all
parameters are extremely stable.
6, optical properties
Since the fluorite
mica contains less impurities, its light transmittance is compared from
infrared to ultraviolet.
High, the
transmittance is close to 100%.
7, Mosaic
(Mosaicity):
The Mosaicite of
fluorocrystalline mica is less than 0.25 degrees, which was produced in the
experiment.
The neutron flame is
not high enough to absorb multi-band light beams and is an ideal neutron
monochromator test material.
8, vacuum deflation
performance:
The evaporative
volume of fluorite mica is low, and it is measured with a mass spectrometer and
the trace gas released is only
O2, N2, Ar and other
adsorbed gases. Since the H2O vapor is not released, this is extremely valuable
for use as an electrical vacuum insulation material, which can greatly increase
the service life of the vacuum device.
9, excellent physical
properties:
Fluorocrystalline
mica has atomicity flatness, transparency, separability and elasticity, not
aging
It is not brittle and
so on.
Due to the high
temperature resistance, corrosion resistance, low frequency loss, and high bulk
resistivity
Absorb multi-band
light beam, excellent light transmittance and other advantages. Therefore it
has become an ideal new material in the high-end area.
Fluorocrystalline
mica Available in:
In the range of 180mm×53mm or ∮76mm, it can be processed into various shapes according
to user requirements. Thickness within the range of 0.02mm~1.0mm can be
allocated according to user requirements. The conventional thickness is
0.04~0.2mm.
https://www.micaslice.com/mica-sheet/