ceramic paper fibers
Noncellulosic paper fibers produced from inorganic
materials. Ceramic fibers include all refractory
fibers made of alumina, zirconia. thoria,
magnesia, fused silica, hafnia, berylia, titanium
oxide, potassium titanate, and their mixtures,
with or without silica. By definition, monooxide
ceramics, such as alumina ceramics, are composed
of at least 80% oxides. More often they contain
90% or more base oxides, while special products
may contain 99% and sometimes 100%. The main group
of ceramic fibers is composed of silica in
admixture with special oxides, such as aluminum
and magnesium oxides, barium, and calcium.
Ceramic fibers may be produced in numerous ways,
including, blowing methods, spinning methods,
continuous-spinning methods, colloidal evaporation
processes, vapor deposition, single-crystal and
whisker methods, oxidation, crystallization,
pseudomorphic alteration, etc. Ceramic paper fiber
is not used in book production because of the very
high cost of the fibers as compared with wood and
other organic fibers; however, such papers do
print and fold well and are considerably more
durable. (42 )
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