ALUMINA MAT RSMAT-3000

(PDF VERSION)

GENERAL INFORMATION

ZRCI Type RSMAT-3000 is a high purity, high temperature, flexible form composed of continuous 97% alumina ceramic fibers designed for use to 1650C (3002F). Type RSMAT-3000 contains little shot and has a higher alumina content than any other ceramic fiber mat or blanket. Type RSMAT-3000 is lightweight, has low thermal conductivity and low heat capacity, and is immune to thermal shock. It is ideal for vacuum, reducing atmospheres and other applications where silica cannot be tolerated, such as powder metal sintering, stainless steel bright annealing and many fuel cell applications.

Type RSMAT-3000 demonstrates excellent resistance to chemical attack and is not affected by oil or water. It's thermal and physical properties are restored after drying. It is, however, affected by hydrofluoric acid, phosphoric acid and strong alkalis. Type RSMAT-3000 contains no organic binders and will produce no smoke or odors when heated. It's non-needled layered construction allows the user to easily peel apart the mat to achieve thinner layersif desired.

 

The Fibers used in RSMAT-3000 were designed with the expert advice of toxicologists to minimize the potential for biological activity. They are produced in a spinning process from a viscous aqueous solution to give a narrow diameter distribution. They are all then subjected to a controlled heat treatment to develop a polycrystalline microstructure.

An extensive series of toxicological tests were carried out on the fiber, involving inhalation, injection and feeding studies. All results were negative, with no fibrogenic, carcinogenic or other toxic effects found.

Low silica levels ensure that there is no possibility of Cristobalite formation after exposure to high temperature. Type RSMAT-3000 fibers are not subject to European regulatory constraints and do not require a hazard warning label or special handling procedures for installation or disposal after use.

 

SUGGESTED APPLICATIONS

  • High temperature gaskets and seals

  • Fuel cell Insulation

  • Refractory back-up insulation

  • Appliance insulation

  • Separating media for heat treating metals

  • High temperature filtration

  • High temperature expansion joint packing

  • Glassware separating media

  • Parting agent for brazing operations

  • Hot face and backup lining for lab furnaces

  • Aluminum distributor pan lining

  • Super alloy ingot mold lining and hot tapes 

 

ADVANTAGES

  • Resistance to chemical attack

  • Non-RCF Fibers

  • Low thermal conductivity

  • Low shrinkage to 1500C

  • High alumina, fiber index and purity

  • Outstanding high temperature stability

  • Thin, flexible, high temperature insulation

  • Easily die-cut to form complex shapes for high temperature gasketing

  • Conforms easily to complex shapes

  • Excellent high temperature parting agent

  • Excellent high temperature backup and expansion joint material

CHARACTERISTICS & PROPERTIES

Nominal composition, wt%  
  Al2O3 97
  SiO2 3
  Trace elements <0.5
Calcium, ppm 525
Sodium, ppm 875
Color   White
LOI, % after 2 hrs @ 800C(1472F) 0
Fiber Diameter, Micron 3 - 5
Shot Content (Non-fibrous material) Negligible
Thickness, mm*in) 35(1.33)
Bulk Density, g/cc(pcf) 0.035(2.2) 
Maximum Use Temp. *, C(F) 1650(3002)
Melting Temp., C(F) 2036(3700)
Specific Heat, J/kg K (BTU/lb F) 1047(0.25)
Tensil Strength, kPa(psi) 35(5)
Young's Modulus, Mpa (pso) 3.2 x 105 (47 x 106)
Hardness of Fiber, Mohs scale 6
Linear reheat shrinkage, %  
  24 hrs. at 1260C(2300F) 0
  24 hrs. at 1425C(2600F) 2.2
  24 hrs. at 1535C(2800F) 3
  24 hrs. at 1650C(3002F) 4
Thermal Conductivity**,  
  ASTM C177   
  W/mK(BTU/hr ft2 oF/in.)  
  315C(599F) 0.07(0.50)
  540C(1000F) 0.09(0.77)
  760C(1400F) 0.13(1.03)
  980C(1796F) 0.17(1.33)
  1200C(2192F) 0.23(1.65)
  1425C(2597F) 0.30(2.15)

* Maximum use temperature is dependent on variables such as stresses, both thermal and mechanical, and the chemical environment that the material experiences.
** Properties expressed parallel to thickness.
^ Properties expressed perpendicular to thickness.

AVAILABILITY

Item # Description
NS95 RSMAT-3000, 24" X 24" X 1.33"
NS96 RSMAT-3000, 24" X 96" X 1.33"
NS97 RSMAT-3000, 24" X 48.5' X 1.33"

PRICES ARE SUBJECT TO CHANGE WITHOUT NOTIFICATION AND ARE SUBJECT TO ZIRCAR REFRACTORY COMPOSITES, INC. TERMS AND CONDITIONS. ALL PRICES ARE F.O.B. FLORIDA, NY AND ARE IN U.S. DOLLARS

Note: These products can be further processed to provide finished sizes. Processes such as slitting, cutting, die punching and CNC. machining are available upon request.

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ZIRCAR REFRACTORY COMPOSITES, INC.
P.O. BOX 489
FLORIDA, NEW YORK 10921
TEL: 845-651-2200, FAX: 845-651-1515

email: sales@zircarchina.com

This information, which is subject to change, is offered solely for your consideration and should not be taken as a warranty or representation for which we assume legal responsibility. It is not to be understood as permission or recommendation to practice a patented invention without a license and the user should determine whether relevant patents exist.

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