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Alumina-based ceramics are without a doubt the largest selection of progressive ceramics made by PFC. Aluminium Oxide, Al2O3, is a leading engineering material. It provides a blend of excellent electrical and mechanical properties providing the means for a broad spectrum of functions.

Alumina can be manufactured in an array of purities with additives intended to improve properties. A multitude of ceramic processing procedures can be implemented including net shape forming or machining to yield a large selection of shapes and sizes of component. Additionally, it can be easily connected to other ceramics or metals by the use of brazing and metallizing methods.

An extensive understanding of the vital blend of these properties is a must, which is why PFC has earnestly studied the traits and behavior of our Alumina products to give you the most supreme component.

The precise appeal of Aluminium Nitride is its effective electrical insulation coupled with its tremendous thermal conductivity. It's applications are chiefly in electronics where heat removal is necessary.

It can be generated by sinter and dry press or by hot pressing with applicable sintering treatments.

NOTE: The material suffers surface oxidation above 700°C.

PFC's Aluminum Silicate is a High Temperature Precision Ceramic, produced in the green state, and fired to a stable, strong ceramic material with dense dimensional resilience.

Also significant is its dielectrical and mechanical stamina, its stability amidst diminished thermal expansion. and resistance to oxidation, chemicals and wear.

This method of heat treatment, that is both controlled and exact, makes sophisticated ceramic parts accessible that are unavailable by any alternative manufacturing technique. Generally, tooling is unnecessary, and so this process of production is a perfect fit to the creation of tailor-made designs and prototypes.

Barium titanate is a ferroelectric ceramic material, with piezoelectric properties and a photorefractive effect. It can exist as a white powder, be transparent as larger crystals, or remain in five phases of solid form, listing from high temperature to low temperature: hexagonal, cubic, tetragonal, orthorhombic, and rhombohedral crystal structure.

Produced by heating titanium dioxide and barium carbonate, there is a progressive reaction through liquid phase sintering.

Barium titanate experiences two-phase conversions that alter the volume and crystal shape. This phase alteration produces composites in which the barium titanates possess a negative bulk modulus (Young's modulus), signifying that when an energy responds to the additions, there is then a shifting towards a different course, additionally hardening the fusion.

NOTE: As is in numerous oxides, barium titanate is insoluble in water but attacked by sulfuric acid.

Boron Nitride (BN) is a non-toxic and non-porous, white solid material. Extremely anisotropic in its mechanical and electrical properties, PBN is highly protected from thermal shock. It also has tremendous thermal conductivity in addition to being an excellent electrical insulator. While it can be produced by pressing/sintering techniques, the purity-rich pyrolytic material is created by a vapor deposition process.

NOTE: The material is stable in reducing and inert atmospheres up to 2800°C, and in oxidizing atmospheres to 850°C.

PFC has sustained experience with joining metal and ceramic for engineering components. The engineers we employ know that assemblies extract the properties specific to both of these materials and combine them to manufacture premium components. Our astute understanding is easily accessible to you from initial ideas to the completion of your product.

Fully Dense Alumina is produced under the trade name Alsint 99,7. It's an excellent electrical insulator, unique in quality, due to its being extremely refractory, it's high Young's modulus, flexing and bending with great stability, being purity-rich, and maintaining impenetrable features, which can be manufactured into plates, tubes and other parts.

NOTE: Standardized according to DIN VDE 0335 group C-700, Type 799.

Produced under the Quarzgut trade name, Fused Silica is primarily implemented in the flat glass industry as rollers in glass tempering furnaces, mainly in the form of solid rollers but additionally as hollow rollers.

Fused Silica is comparable to quartzglass because of it's possessing a purity-rich powder and fine pore structure, but is in actuality quartzglass that is sintered, producing an extremely low expansion coefficient and therefore an expectionally invaluable thermal shock resistance. The creation of this material provides a special use for ignition crucible and dishes, firing supports, and castables of other geometries.

CAUTION: Due to its physical structure this material should not be utilized at temperatures greater than 1000°C.

MACOR® Machineable Glass Ceramic can be produced into intricate precision parts and forms with basic metal working devices, both expediently and economically. It involves no post firing after machining, no costly hardware, no post fabrication shrinkage, no disappointing setbacks, and no costly diamond tools to adhere to specifications.

Additionally, it demonstrates zero porosity, non-wetting, and won't deform like other ductile materials. An superior insulator at elevated temperatures, extreme voltages and varied frequencies it won't outgas in vacuum environments, when appropriately baked out. As for dependability, it has a constant use temperature of 800°C and a peak temperature of 1000°C. And its coefficient of thermal expansion easily parallels most sealing glasses and metals.

PFC's engineers are consistently accessible to provide you with the most excellent recommendations in regards to the strengths and weaknesses of each ceramic for your specific needs. Silicon Carbide, for instance, is produced in two ways: Sintering and Reaction Bonding. And each manufacturing technique significantly influences the outcome of the microstructure.

Reaction bonded SiC is produced by permeating compacts, consisting of combinations of SiC and Carbon, with liquid Silicon. The Silicon reacts with the Carbon producing more SiC which joins the initial SiC particles.

Sintered SiC is created from pure SiC powder with non-oxide sintering aids. Standard ceramic forming methods are implemented and the material is sintered in an inactive atmosphere at temperatures as much as or greater than 2000°C.

Both forms of Silicon Carbide (SiC) are highly safeguarded from wear with superb mechanical properties, which include thermal shock resistance and high temperature stability.

Silicon Nitride is created in two fundamental ways; Reaction Bonded Silicon Nitride (RBSN), and Hot Pressed Silicon Nitride (HPSN) and Sintered Silicon Nitride (SSN).

RBSN is produced by direct reacting compacted Silicon powder with Nitrogen, and generates a generally low-density product in contrast to Hot Pressed and sintered Silicon Nitride; although this method has a limited volume alteration permitting net shape forming. Additionally, the HPSN and SSN material is comprised of sintering aids and yields preferred physical properties applicable for more challenging purposes.

Additionally, Silicon Nitride's low thermal expansion coefficient provides excellent thermal shock resistance in comparison with the majority of ceramic materials and exhibits superb temperature stamina, creep and oxidation resistance.

In its purest form, changes in the structure of crystal hinder mechanical functions. However, Zirconia, when stable, created by the inclusion of Calcium, Magnesium or Ytrium Oxides, can produce extremely elevated firmness, stamina, and significant rigidity.

Zirconia (TZP) supplies corrosion and chemical resistance to temperatures highly exceeding the melting point of Alumina. Utilizations in oxygen sensors and high temperature fuel cells are actualized as a result of Zirconia possessing moderate thermal conductivity and being an ionic conductor greater than 600°C.

Due to the hardening of the stress-induced revolutionary changes produced by evenly combining fine Zirconia particles throughout the Alumina, ZTA (Zirconia Toughened Alumina) is significantly more resilient and durable than Alumina.

More costly than Alumina as a result of the material's superior Zirconia content of 10% to 20%, ZTA offers advanced component performance and life in mechanical applications.

 


     
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