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1. (WO2018159556) HONEYCOMB SUBSTRATE FOR CATALYST SUPPORT, AND CATALYTIC CONVERTER FOR EXHAUST GAS PURIFICATION

Pub. No.:    WO/2018/159556    International Application No.:    PCT/JP2018/007035
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Tue Feb 27 00:59:59 CET 2018
IPC: B01J 35/04
B01D 53/94
B01J 32/00
F01N 3/28
Applicants: NIPPON STEEL & SUMIKIN MATERIALS CO., LTD.
新日鉄住金マテリアルズ株式会社
Inventors: KAWASOE, Shinji
川副 慎治
INAGUMA, Tooru
稲熊 徹
KAKO, Takuzo
加古 卓三
Title: HONEYCOMB SUBSTRATE FOR CATALYST SUPPORT, AND CATALYTIC CONVERTER FOR EXHAUST GAS PURIFICATION
Abstract:
[Problem] The purpose of the invention is to improve adhesion of a catalyst layer and an oxide film in a honeycomb substrate for catalyst support. [Solution] A honeycomb substrate for catalyst support used in purification of exhaust gas is characterized by comprising 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, and in that the oxide film includes multiple oxide projections that are formed to be dispersed on the film surface and that comprise 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/μm2) – 3.00 (pieces/μm2).