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method for preparing a mullite composition, mullite composition, automotive catalytic converter, particle capture-oxidation catalyst and particle trap.
method for preparing a mullite composition, mullite composition, automotive catalytic converter, particle capture-oxidation catalyst and particle trap.
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机译:莫来石组合物的制备方法,莫来石组合物,汽车催化转化器,颗粒捕获-氧化催化剂和颗粒捕集器。
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摘要
A mullite composition is comprised substantially of mullite grains that are essentially chemically bound wherein the composition has at least two adjoining regions that have substantially different microstructures. The composition may be produced by forming a mixture of one or more precursor compounds having the elements present in mullite; shaping the mixture into a porous green shape applying a nucleation control agent to a portion of the porous green shape and then heating the porous green shape under an atmosphere and to a temperature sufficient to form the mullite composition.
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