Invention Grant
- Patent Title: Silicon carbide porous material, honeycomb structure and electric heating-type catalyst carrier
- Patent Title (中): 碳化硅多孔材料,蜂窝结构和电加热型催化剂载体
-
Application No.: US14482446Application Date: 2014-09-10
-
Publication No.: US09457345B2Publication Date: 2016-10-04
- Inventor: Takahiro Tomita , Kiyoshi Matsushima , Katsuhiro Inoue , Yoshimasa Kobayashi
- Applicant: NGK Insulators, Ltd.
- Applicant Address: JP Nagoya
- Assignee: NGK Insulators, Ltd.
- Current Assignee: NGK Insulators, Ltd.
- Current Assignee Address: JP Nagoya
- Agency: Burr & Brown, PLLC
- Priority: JP2012-073692 20120328
- Main IPC: B01J21/06
- IPC: B01J21/06 ; B01J21/12 ; B01J23/02 ; B01J27/224 ; B01J29/70 ; C04B35/565 ; C04B38/00 ; C04B35/63 ; B01J35/04 ; B01J21/16 ; C04B111/00 ; C04B111/20

Abstract:
There is disclosed a silicon carbide porous material having a high thermal shock resistance. The silicon carbide porous material of the present invention includes silicon carbide particles, metal silicon and an oxide phase, and the silicon carbide particles are bonded to one another via at least one of the metal silicon and the oxide phase. Furthermore, the oxide phase includes a parent phase, and a dispersion phase dispersed in the parent phase and having a higher thermal expansion coefficient than the parent phase. Here, a lower limit value of a content ratio of the dispersion phase in the oxide phase is preferably 1 mass %, and upper limit value of the content ratio of the dispersion phase in the oxide phase is 40 mass %. Furthermore, it is preferable that the parent phase is cordierite and that the dispersion phase is mullite.
Public/Granted literature
- US20140378297A1 SILICON CARBIDE POROUS MATERIAL, HONEYCOMB STRUCTURE AND ELECTRIC HEATING-TYPE CATALYST CARRIER Public/Granted day:2014-12-25
Information query