Cordierite ceramic and method for manufacturing the same

Details Cordierite ceramic and method for manufacturing the same Cordierite ceramic and method for manufacturing the same

2007-11-27

2010-11-30

Xu, Ling (Department: 1784)

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

C428S697000, C428S701000, C428S702000, C501S103000, C501S134000

Reexamination Certificate

active

07842370

ABSTRACT:
A cordierite ceramic is provided, which includes at least zirconium oxide or hafnium oxide, and also includes titanium oxide. The molar ratio of zirconium (Zr), hafnium (Hf) and titanium (Ti) in terms of the moles in the form of the dioxides, respectively which is given by the formula [(ZrO2+HfO2)/TiO2] is in a range of 0.1 to 5. In this cordierite ceramic, the phases of the components are contained mainly as zirconium titanate or hafnium titanate, and no heterogeneity in appearance, caused by change in color and generation of spots occurs. A honeycomb structure made of the cordierite ceramic is also provided.

REFERENCES:
patent: 4758542 (1988-07-01), Parker
patent: 06-172016 (1994-06-01), None

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