High Strength Zirconia Piston Plunger with Hole for for Precision
Metering Pump
Ceramics as a materials classification are inherently very strong
in compression. This is due to the type of bonding which holds the
atoms together being either covalent or ionic or a combination
therein. The direct consequence of this structure gives ‘ceramic’
materials very high melting points and relatively low electrical
conductivity together with other key benefits.
Whereas in metal systems there are slip planes where crystal
lattices can be moved which give malleability and ductility,
ceramics reach a limit and fail catastrophically. The limit at
which they fail is generally noted as the modulus of rupture (MOR)
which is a statistical statement based on many results. Zirconia
unlike many ceramics has a very high fracture toughness value which
enables it to be functionally used without the fear of failure. It
also has a thermal expansion co-efficient similar to that of steel
which enables composite systems of metal and ceramic to be utilised
to enable massive performance gains.
Zirconia is proving an exciting novel material which is gaining in
popularity due to its specific key advantages over other more
traditional ceramics. It does not have the malleability of metals
but does have significantly high fracture toughness - K1c value.
This is due to additions being made to zirconia which ‘toughen’ the
material.
The primary function of the additive is to stabilise the tetragonal
phase. If done correctly this high temperature phase becomes
metastable at room temperature.
Metastable is where a given phase within the material is present
and stable under certain conditions. When the conditions change it
becomes energetically favourable for the crystal structure to
change.
Indeed it is the very nature of this phase being metastable that
causes the increase in fracture toughness.
When the tetragonal phase reverts to monoclinic it does so under a
martensitic type transformation. This gives an associated volume
change of between positive 3% and 5%. This volume expansion tends
to close the crack, thus relieving stresses at the tip. This in
turn is what causes the increase in K1c value.
Indeed it is this transformation behaviour which gives this
material the interesting advantages for the modern engineering
world.
There are four zirconia systems that as engineers we are interested
in ...
- SZ full stabliised cubic system 8% mol
- TZP Tetragonal Zirconia Polycrystal (2-4mol% Yytria)
- PSZ partially stabilised zirconia. Plasma coatings 5-6mol%
- Approx 15 wt% far more than CSV used for Ion carriers in fuel
cell systems
Company Introduction
Mingrui ceramic manufacture and provides alumina ceramic components
for a wide range of application like Mechanical Equipment,
Electronic & Electrical, Oil Drilling, Medical, Chemical
Industry etc. According to actual application and customer's
requirement, the purities vary from 95%-99.7% and the forming
methods will be different. The forming methods applied in our plant
include dry pressing, isostatic pressing, injection moulding,
extrusion moulding. With experienced engineers and talented
workers, we are confident to offer high quality, high precision,
complex components for customers worldwide.
Product Description
Mingrui Ceramics has years of experience designing and developing
technical ceramic solutions for a wide variety of applications and
industries. Anti-chemical Corrosion Zirconia Ceramic Parts Chemical
Stirring Rod. We offer this expertise to all of our customers to
ensure the best design and materials are chosen for their specific
application and needs. Anti-chemical Corrosion Zirconia Ceramic
Parts Chemical Stirring Rod, Typically, our custom technical
ceramic components and parts we supply are used for one of three
main reasons:
Fine Surface Polished 1mm Zirconia Bar Zirconia Pin with Groove for
Heating Elements
High temperature ceramics – crucibles, nozzles, lasers,
furnace/kiln fixtures
Fine Surface Polished 1mm Zirconia Bar Zirconia Pin with Groove for
Heating Elements
Wear and corrosion resistant ceramics – plates, housings, gages,
caps/lids
Fine Surface Polished 1mm Zirconia Bar Zirconia Pin with Groove for
Heating Elements
Electrical insulation ceramics – contact blocks, standoffs,
fasteners, spacers
Fine Surface Polished 1mm Zirconia Bar Zirconia Pin with Groove for
Heating Elements
Mingrui Ceramics is one of the world’s premiere technical ceramic
suppliers – contact us to see what technical ceramics we can create
for you.
Dongguan Ming Rui Ceramic Technology Co.,ltd is a professional
manufacturer which is specialized in zirconia ceramics. We have 10
senior engineers and lots of technologists; our ceramic products
are precision ceramic structure parts used mainly in industrial
field, which is made of strengthened structure zirconia ceramic.
Our products including strengthened structure zirconia
ceramic,ceramic bar,ceramic tube,ceramic shaft,ceramic
plate,ceramic sleeve,ceramic valve,ceramic plunger and ceramic arm.
The product we produced are applicable to Instruments,Medical
instrument,Clocks and Electronic Products,Mills,Energy and
Power,Machine and Metals,Autocar and Military and some other high -
end areas.
Dongguan Ming Rui have achieved great successes in particular
requirements which is based on cooperating with Tsinghua University
and professional knowledge and business experience by ourselves. We
get the low-budget and high-performance new ceramics products from
the high – quality raw materials and composite technology and
precision processed, technical and value are increasing strongly.
In professional technology, innovation, sincerity, sustainable
development, offering the high efficiency products, perfect
service, good reputation. By the way, our company have an unique
technical called “mirror polishing” which is improved our products
bright,color,smooth and made our product better than other
competitors.
Warmly welcome all the customer form the world to visit our
company!
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