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Pi is the largest manufacturer of Piezoaktor EN and Piezotranslatoren for applications of precision. PICMA® Piezoaktoren are momentarily the only full-ceramically isolated many sending actuators on the market. They offer superior life span and efficiency.
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Nextel Ceramic Fibers
3M™ Nextel™ Continuous Ceramic Oxide Fibers 312, 440, 550, 610 and 720 represent a major advancement in refractory fiber technology. This family of metal oxide fibers can be readily converted into ceramic textile products which meet demanding performance requirements in high temperature operating environments. Nextel™ Ceramic Textiles are typically used in aerospace, outerspace and industrial applications.
Because the filaments are continuous and strong, Nextel™ Ceramic Textiles can be produced without the aid of other fibers or wire inserts. Rovings, yarns, fabrics, tapes, sleevings and sewing threads are typical products.
Features of 3M™ Nextel™ Fibers:
- Low elongation at operating temperatures
- Low shrinkage at operating temperatures
- Good chemical resistance
- Low thermal conductivity
- Thermal shock resistance
- Low porosity
- Unique electrical properties
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Made from 3M™ Nextel™ Fibers, these chopped fibers are used in composite applications. The fibers, commonly chopped to 1/8", 1/4" and 1/2" lengths, are widely known for their role in ceramic underbody tiles which protect NASA's Space Shuttles.
NOTE: These fibers are considered non-respirable. Fibers with diameters greater than 3 microns are considered nonrespirable in humans. 3M™ Nextel™ 312, 440, 550, 610 and 720 Ceramic fibers are 7-13 microns in diameter and therefore pose no known chronic health effects.
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3M™ Nextel™ Braided Ceramic Sleeving is available in diameters to meet the needs of most applications. It is readily cut to length.
Frequently used in electrical thermocouple insulation, our ceramic sleeving offers the same reliability and quality you'll find throughout our entire line of ceramic fabrics. Whether covering hoses and cables in aircraft, or insulating heater wires and protecting fire zone cables, there's a sleeving diameter to meet your needs.
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MgO Crucibles
High Density, Fine Grained Crucibles from 99.4% MgO
* Better chemical resistance than alumina
* Inert to most metals and slags
* Use temperatures up to +2200 C
Uses:
Molten Metal Alloy Processing
Often superior to Al2O3 based ceramics
Resistant to attack by metals and slags
Compatible with nickel-based superalloys
Proven performance with plutonium/uranium refining
High Temp Ceramic Superconductor materials
Resistant to attack
Non-contaminating to 1, 2, 3 materials
Perovskite structure compatibility
Piezoelectric Materials Processing
Resistant to lead based materials
Helps maintain lead content in PLZT
Substitute for Al203 ware
Favorable cost
Higher chemical purity
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Ceramic (ferrite) magnets are composed of strontium carbonate and iron oxide. They are charcoal gray in color and usually appear in the forms of discs, rings, blocks, cylinders, and sometimes arcs for motors.
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CERAMICS Ceramics predominantly are bonded by very directional bonds between neighboring atoms in expansive lattice structures (as compared to the chains of polymers). Because every atom in a ceramic directionally shares its electrons within its lattice neighborhood through ionic and/or covalent type bonding, ceramics tend not to be tightly packed like metals. Due to strong directional bonding and non-close packed lattices, ceramics tend to have high stiffness, low electrical conductivity, low density, high hardness, low thermal expansion, high melting or dissociation temperatures, electrical resistance, high strength and corrosion resistance. In essence, ceramics tend to be very “non-reactive” or “inert” because their atoms are essentially electrically neutral through strong directional bonds within a very fixed lattice neighborhood – they have no need to “react” with the outside world looking for electrons to satisfy neutrality.
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Nextel™ machine-sewable threads are made from strong, continuous alumina-boria-silica fibers (about 90%) and from rayon (about 10%), which is added for resiliency, abrasion resistance, and improved sewability. The thread allows for simple manufacturing of custom blankets, seals, gaskets, curtains, zone dividers and other shaped or quilted items.
It is a practical and effective solution to sewing 3M™ Nextel™ Ceramic Fabrics, Tapes, Sleevings and other high-temperature fabrics.
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Whether fused or sintered, our ceramic beads ensure high efficiency when microgrinding and microdispersing a whole range of industrial products such as paints, inks, pigments, dyes, mineral fillers, magnetic coatings, pharmaceuticals, agrochemicals and cosmetics.
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Woven ceramic fabrics and woven industrial fabrics from 3M allow engineers and designers with high temperature applications to create new, imaginative solutions for previously impossible problems.
3M™ Nextel™ Woven Ceramic Fabrics are designed to meet the toughest thermal, mechanical and electrical performance requirements. Nextel™ Woven Ceramic Fabrics outperform the useful limits of other high temperature textiles such as aramids, carbon, glass or quartz. Nextel™ woven ceramic fabrics are engineered to perform at continuous temperatures of 2000°F (1093°C) or higher depending on application and composition.
When used in industrial furnaces, Nextel™ Woven Ceramic Fabrics can serve as thermal barriers to separate different temperature zones or the fabrics can serve to prevent particulate shedding.
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