Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CORDIERITE POROUS CERAMIC HONEYCOMB ARTICLES WITH DELAYED MICROCRACK EVOLUTION
A porous ceramic honeycomb article includes a primary cordierite phase and an intercrystalline glass phase. In an as-fired condition, the porous ceramic honeycomb article exhibits microcrack parameter Nb 3 ¤ 0.06 and an as-fired E 500°C /E 25°C ratio ¤ 0.99. The article exhibits a coated microcrack parameter Nb 3 ¤ 0.14 and a coated E 500°C /E 25°C ratio ¤ 1.06 after the porous ceramic honeycomb article has been washcoated and calcined at a temperature of 550°C. After the article is exposed to a thermal treatment at a temperature ¥ 800°C following washcoating and calcining, at least a first portion of the porous ceramic honeycomb article has a first treated microcrack parameter Nb 3 ¥ 0.18, and a first treated mean coefficient of thermal expansion of not more than 12x10 -7 /°C over a temperature range of 25°C to 800°C. Methods of forming the porous ceramic honeycomb article are also disclosed.
CORDIERITE POROUS CERAMIC HONEYCOMB ARTICLES WITH DELAYED MICROCRACK EVOLUTION
A porous ceramic honeycomb article includes a primary cordierite phase and an intercrystalline glass phase. In an as-fired condition, the porous ceramic honeycomb article exhibits microcrack parameter Nb 3 ¤ 0.06 and an as-fired E 500°C /E 25°C ratio ¤ 0.99. The article exhibits a coated microcrack parameter Nb 3 ¤ 0.14 and a coated E 500°C /E 25°C ratio ¤ 1.06 after the porous ceramic honeycomb article has been washcoated and calcined at a temperature of 550°C. After the article is exposed to a thermal treatment at a temperature ¥ 800°C following washcoating and calcining, at least a first portion of the porous ceramic honeycomb article has a first treated microcrack parameter Nb 3 ¥ 0.18, and a first treated mean coefficient of thermal expansion of not more than 12x10 -7 /°C over a temperature range of 25°C to 800°C. Methods of forming the porous ceramic honeycomb article are also disclosed.
CORDIERITE POROUS CERAMIC HONEYCOMB ARTICLES WITH DELAYED MICROCRACK EVOLUTION
PORÖSE KERAMIKWABENSTRUKTUR AUS CORDIERIT MIT VERZÖGERTER MIKRORISSBILDUNG
ARTICLES EN NID D'ABEILLES CÉRAMIQUE POREUX DE CORDIÉRITE À ÉVOLUTION DE MICROFISSURE RETARDÉE
BEALL DOUGLAS MUNROE (Autor:in) / MERKEL GREGORY ALBERT (Autor:in) / MURTAGH MARTIN JOSEPH (Autor:in)
06.03.2019
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B29C
Formen oder Verbinden von Kunststoffen
,
SHAPING OR JOINING OF PLASTICS
/
C03B
Herstellung oder Formgebung von Glas, Mineral- oder Schlackenwolle
,
MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
Cordierite porous ceramic honeycomb articles with delayed microcrack evolution
| Europäisches Patentamt | 2016
METHOD FOR FORMING CORDIERITE POROUS CERAMIC HONEYCOMB ARTICLES WITH DELAYED MICROCRACK EVOLUTION
| Europäisches Patentamt | 2016
METHOD FOR MAKING CORDIERITE POROUS CERAMIC HONEYCOMB ARTICLES
| Europäisches Patentamt | 2019