HONEYCOMB SUBSTRATE FOR CATALYST SUPPORT, AND CATALYTIC CONVERTER FOR EXHAUST GAS PURIFICATION
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United States of America
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Jan 23, 2020
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Feb 26, 2018
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Feb 26, 2018
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Abstract
Adhesion of a catalyst layer and an oxide film in a honeycomb substrate for catalyst support is improved. A honeycomb substrate for catalyst support used in purification of exhaust gas includes a honeycomb body and an oxide film that is formed on the surface of the honeycomb body and that has α-alumina as a main component. The oxide film includes multiple oxide projections that are formed to be dispersed on the film surface and that include a contracted shape in which the width becomes narrower near the honeycomb body, and the density of the projection formations on the film surface is 0.20 (pieces/m2)-3.00 (pieces/m2).
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