Al2O3–SiO2 (RCF) / alkaline earth silicate (AES)
ChemistryKeramikfaser is specified as Al2O3–SiO2 (RCF) / alkaline earth silicate (AES). Density band 64–192 kg/m³ blankets.
What holds Keramikfaser together is not the nickname. Formula Al2O3–SiO2 (RCF) / alkaline earth silicate (AES), density 64–192 kg/m³ blankets.
Meters are atlas-relative. Grades are the SKUs buyers write.
Phasen
Microstructure
OrderProcessing sets grain, crystallinity or fibre orientation — the reason two lots of Keramikfaser can test differently.
Interfaces
SurfacesCoatings, oxide films, sizings or paper faces often decide weather and fire behaviour more than the bulk brochure.
Defects
FlawsInclusions, voids, knots, pinholes or residual stress start the failures that mill certificates do not list.
Grades
VariantsKeramikfaser is a family. Grade names below are the ones buyers actually write on RFQs.
Ageing
TimeMoisture, UV, creep, hydrogen or carbonation shift properties in service. Design to the aged state.
Relative Meter
Strength14
Strength is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Heat envelope98
Heat envelope is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Fire behaviour97
Fire behaviour is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Insulation80
Insulation is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Workability50
Workability is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Circularity34
Circularity is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.
Sorten
RCF 1260
Classic alumino-silicate.Classic alumino-silicate.
AES 1200
Lower biopersistence claims.Lower biopersistence claims.
PcW polycrystalline
Higher T.Higher T.
Modules
Heater walls.Heater walls.
Papers / felts
Gaskets.Gaskets.
Bindungen
Primary bonding
Keramikfaser holds together by ionic/covalent networks.
Secondary forces
Hydrogen bonds, van der Waals stacks or grain-boundary cohesion set toughness and moisture uptake.
Composites & fills
Fillers, fibres, plasticisers or aggregates are part of the real product, not impurities.
Environment film
Oxides, chars, sizings or paints are the layer the world actually meets.
Change the grade, the coating or the moisture and you have a different material with the same English name.
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