基本信息:
- 专利标题： SILICON NITRIDE POROUS BODY AND ITS MANUFACTURING METHOD
- 申请号：JP2001087912 申请日：2001-03-26
- 公开(公告)号：JP2002284586A 公开(公告)日：2002-10-03
- 发明人： INOUE KATSUHIRO , MORIMOTO KENJI , MASUDA MASAAKI , KAWASAKI SHINJI , SAKAI HIROAKI
- 申请人： NGK INSULATORS LTD
- 专利权人： NGK INSULATORS LTD
- 当前专利权人： NGK INSULATORS LTD
- 优先权： JP2001087912 2001-03-26
- 主分类号： B01D39/20
- IPC分类号： B01D39/20 ; B01D53/22 ; B01D53/86 ; B01D53/94 ; B01D71/02 ; B01J27/24 ; B01J32/00 ; B01J35/04 ; C04B35/584 ; C04B35/591 ; C04B38/00
摘要：
PROBLEM TO BE SOLVED: To provide a silicon nitride porous body which has a porous structure with a large average pore size and large thermal conductivity and small thermal expansivity of a cut-off test piece, and is preferably used for a gas and/or solution purification part of a ceramic filter or the like. SOLUTION: The silicon nitride porous body is obtained by nitriding a formed body having a metal silicon as a main component and carrying out high temperature heat treatment at a temperature higher than a nitriding temperature, and is characterized by having the porous structure with a average pore size of 3 μm or larger and containing at least one kind of elements selected from the group consisting of II group A and III group A, and III group B and IV group B including a lanthanoid element.
公开/授权文献:
信息查询:
EspacenetIPC结构图谱:
| B | 作业；运输 |
| --B01 | 一般的物理或化学的方法或装置 |
| ----B01D | 分离 |
| ------B01D39/00 | 用于液态或气态流体的过滤材料 |
| --------B01D39/10 | .基本由金属制成的滤网 |
| ----------B01D39/20 | ..无机材料的，例如，石棉纸，非编织的金属丝的过滤材料 |