2. CONTENT
CRYTUR PROFILE
SAPPHIT™ - SAPPHIRE TEMPERED
SAPPHIT™ vs. ALUMINA CERAMICS
SAPPHIT™ FOR TEMPERATURE MEASSUREMENT
SAPPHIT™ HEATING ELEMENTS
SAPPHIT™ FOR MATERIAL ANALYSES
SAPPHIT™ FOR STRUCTURAL ANALYSES
SAPPHIT™ MATERIAL PROPERTIES DATA
3. CRYTUR – The Reliable
supplier
Crytur is one of the world leading companies in synthetic crystal
manufacturing and processing. With tradition reaching back to 1943,
Crytur is the manufacturer with long term expertise.
Crytur operates a modern 3850sqm facility where it uses sophisticated
proprietary crystal growing technologies and precise machining to meet
the highest production standards.
4. CRYTUR – The Reliable
supplier
Crytur‘s highly qualified engineers deliver tailored client oriented
solutions based on careful analyses of the clients needs.
Apart from its own research, Crytur and also closely cooperates with
science institutes and universities to introduce innovative solutions.
All crystal product undergo a very strict output examination and only
products perfectly matching the clients specification leave the company.
The company is
ISO 9001:2009 certified
5. - Sapphire Tempered
Natural saphire is known as a valued blue gemstone. The
blue color is caused by the presence of Ti and Fe or other
defects in the aluminium oxide matrix.
Natural sapphire
Synthetic sapphire is, on the contrary, extremely pure and
defect-free aluminium oxide single crystal.
Sapphire boule
6. - Sapphire Tempered
Sapphit™ - the true jewel of industrial and
scientific instruments
Sapphit™ is a single crystal of Al2O3 that is
forced to crystalize into the desired shape/profile
by Crytur‘s proprietary and patented technology.
Sapphit™ is the result of the state-of-the-art
manufacturing process involving material
tempering, which minimizes any inner tension
and guarantees perfect material homogeneity.
Sapphire crystallization
7. - Key characteristics
Single crystal
Thermal resistance - melting point 2053°C
High thermal conductivity
Enormous pressure resistance
Hardness - Mohs 9
Pure Al2O3
Transparent, UV to IR transmitive
Outstanding chemical resistance
High strenght
Electrical resistivity
100% Gas-tight
Bio compatibility
* for exact values see the technical data sheet at the end of presentation
8. vs. Sintered ceramic
Alumina ceramics – sintered
microscopic grains of Al2O3
Sapphit™ - single Al2O3
crystal
Sapphit™ structure is perfectly
homogenous with molecules
arranged into a perfect crystal
lattice throuhout the whole
product leaving no weak points
to be attacked.
Magnification 560x
Ceramic materials compose of
microscopic grains. Grain
boundaries represent structural
weak points and source of impurity
due to the residue of sintering
material.
Magnification 560x
9. vs. Sintered ceramic
Even high purity translucent ceramic
show more than 100x more impurities
in chemical analyses!
Comparison based on material analyses of Sapphit™ and
composition data by different manufacturers of sintered ceramics.
100x less impurities
Not only by structure but also by
chemical purity is Sapphit™ a far
superior product to alumina ceramic.
10. vs. Sintered ceramic
Sapphit™ exceeds the performance of sintered alumina ceramics in many parameters.
SAPPHIT™
Corrosion resistence
Perfect
No signs od corrosion after 2 years in the
corrosive environment
Shape stability
Durability
Perfect
No changes in shape until reaching the metling
point
High
Hardness just below diamond guarantees that
the material is not weared
Temperature resistence
Gas tightness
Up to 2000°C (3632°F)
100% gas-tight, very
high pressure resistance
Ceramics
Low
Destroyed after 5 month in the same
environment
Limited
High temperatures may
cause deformation
Limited
Some corrosive oxides can even penetrate
through the sintered ceramics.
Up to 1800°C (3272°F)
Limited and
dependable on
manufacturer/model
11. FOR TEMPERATURE
MEASUREMENT
Sapphit™ is the material of choice for the protective casing of
thermocouple probes.
For its material characteristics Sapphit™ protective sheaths present an
efficient alternative or combination to commonly used materials - large
variety of corundum ceramics or platinum coated sheaths
To ceramics, Sapphit™ is a far
more durable product
Patented solution – Patent No.
CZ302212 (2006)
12. FOR TEMPERATURE
MEASUREMENT
Benefits of of Sapphit™ protective sheaths
Outstanding physical properties - high temperature and pressure resistance
together with perfect chemical stability delivers the best performance in heavy
duty operations
Longer service life – compared to sintered ceramics, Sapphit™ casings survive
much longer in identical conditions
Handling comfort – no extra handling once mounted, long service of Sapphit™
termocouples reduces handling to minimum
Higher safety – low manipulation frequency also significantly decreases the risk of
injuries in production processes with intensive heat environments.
Less shutdowns – longer service life of Sapphit™ casings leads to a reduced
amount of process shutdowns due to thermocouple malfunction, in some processes
Sapphit™ thermocouples outlast the service life of the device in which they are
mounted
13. FOR TEMPERATURE
MEASUREMENT
Sapphire thermocouples deliver the best performance
in harsh processes:
•
•
•
•
•
•
•
•
•
Concentrated or boiling mineral acids
Reactive oxides at high temperatures
Ammonia synthesis
Claus process
Gasification
Desulphurization
NOx removal
Flying ash attachments
Floating non-metal melts
19. FOR TEMPERATURE
MEASUREMENT
Thermocouple components
Our long term experience and cooperation with
partners throughout different industrial segments
result in a wide range of Sapphit™ thermocouple
components specific to the application conditions.
Pre-sales support provided:
•consultancy and careful analyses prior to process
implementation
•product development and testing for specific
applications
20. FOR TEMPERATURE
MEASUREMENT
Custom design
To achieve a reliable and cost effective solution we will help you chose:
•optimium diameter/thickness
•ideal profile combination
•supplemental material combination
Sapphit™ + Metal
Platinum reinforcement in
critical part
Example of reinforced stressed part –
STILL SINGLE CRYSTAL!
Sapphit™ + Ceramics
Probe reinforcement
21. FOR TEMPERATURE
MEASUREMENT
Custom design
Single profile
Profile combination
- for measuring at
differnet levels
Sealed
single
profile
Thickened profile
- reinforced critical
part
Most commonly used thermocouple profile: outer diameter 8 mm, 1,5 mm
thick
- cost/durability compromise proven by experience
1,5 mm
8 mm
22. FOR TEMPERATURE
MEASUREMENT
Custom design – examples of different customized solutions
Gas-tight probe
for measuring
in chemical
industry
Probe for heavy
duty chemical
ractors
Probes for
glass melt
insertion
Waste
gasification
probe
23. FOR TEMPERATURE
MEASUREMENT
Probe durability testing
Moving stream of
lead crystal at
1170°C after 25
month
Glass furnace
at 1250°C for
20 month
Furnace crown at 1500°C for
11 month
26. Heating elements
Furnaces…
Sapphire’s strength, temperature stability, purity and 100% gas-tightness as a single crystal guarantees
that this material can be used as an inert construction material to insulate furnace heated zones at
temperatures as high as 1900 °C. Sapphire tube furnaces can be designed as an ideal cost-effective
solution for reaching high vacuum or to perform annealing in inert, oxidizing or even reducing (hydrogen
containing) atmospheres at high temperatures.
Heaters…
Flexibility and contamination-free operation are yet further advantages of this solution. Its
composition (4N Al2O3) means that it finds applications even in semiconductor manufacture. Most
importantly, sapphire tubes can be easily taken out and if necessary, easily cleaned with strong
oxidizing solutions or, for example, with boiling mineral acids like aqua regia or hydrofluoric acid.
Several sapphire tubes can be employed and exchanged where flexible clean annealing of various
components is required. As such, this solution is also ideal for small laboratory set-ups.
Sapphire can effectively encapsulate any metal or ceramic heating element in such a way that no
contamination occurs, as well as having the heating wire covered with protective atmosphere. The
heating element can be in the shape of a single wire closed within a sapphire tube, or in the form of
a metal spiral in between two sapphire tubes, effectively creating a tube furnace.
Sapphire is and ideal material for protection of heating elements against harsh environment and
extending them life-time. Sapphire tubes can be used up to 1900°C and can keep heating element
under innert or reductive atmosphere. Sapphire allows to enclosure tungsten or molybdenum
heating elements and use them under oxygen. Sapphire is pure Al2O3 (99,995%)
Sapphire tubes are offered in standard diameters from 1,0 mm up to 44 mm with length up to 2 m.
Sapphire’s strength
that this material
temperatures as h
solution for reachin
containing) atmosp
27. Heating elements
Furnaces…
Sapphire’s strength, temperature stability, purity and 100% gas-tightness as a single crystal guarantees
that this material can be used as an inert construction material to insulate furnace heated zones at
temperatures as high as 1900 °C. Sapphire tube furnaces can be designed as an ideal cost-effective
solution for reaching high vacuum or to perform annealing in inert, oxidizing or even reducing (hydrogen
containing) atmospheres at high temperatures.
Heaters…
Flexibility and contamination-free operation are yet further advantages of this solution. Its
composition (4N Al2O3) means that it finds applications even in semiconductor manufacture. Most
importantly, sapphire tubes can be easily taken out and if necessary, easily cleaned with strong
oxidizing solutions or, for example, with boiling mineral acids like aqua regia or hydrofluoric acid.
Several sapphire tubes can be employed and exchanged where flexible clean annealing of various
components is required. As such, this solution is also ideal for small laboratory set-ups.
Sapphire can effectively encapsulate any metal or ceramic heating element in such a way that no
contamination occurs, as well as having the heating wire covered with protective atmosphere. The
heating element can be in the shape of a single wire closed within a sapphire tube, or in the form of
a metal spiral in between two sapphire tubes, effectively creating a tube furnace.
Sapphire is and ideal material for protection of heating elements against harsh environment and
extending them life-time. Sapphire tubes can be used up to 1900°C and can keep heating element
under innert or reductive atmosphere. Sapphire allows to enclosure tungsten or molybdenum
heating elements and use them under oxygen. Sapphire is pure Al2O3 (99,995%)
Sapphire tubes are offered in standard diameters from 1,0 mm up to 44 mm with length up to 2 m.
