High performance SiC-polycrystalline fiber
| Project/Area Number |
15H06789
|
|---|
| Research Category |
Grant-in-Aid for Research Activity Start-up
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Inorganic materials/Physical properties
|
|---|
| Research Institution | Tokyo University of Science, Yamaguchi |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2015-08-28 – 2017-03-31
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
|---|
| Keywords | 炭化ケイ素繊維 / 前駆体セラミックス / 構造・機能材料 |
|---|
| Outline of Final Research Achievements |
SiC-polycrystalline fiber shows excellent heat-resistance up to 2000oC with relatively high mechanical strength. This fiber is produced by a heat-treatment of an amorphous Si-Al-C-O fiber at very high temperatures over 1500oC in argon. In this process, the degradation reaction of the amorphous Si-Al-C-O fiber accompanied by a release of CO gas for obtaining a stoichiometric composition and the subsequent sintering of the degraded fiber proceed. Furthermore, vaporization of gaseous SiO, phase transformation and active diffusion of the components of the Si-Al-C-O fiber competitively occur. Of these changes, vaporization of the gaseous SiO during the conversion process results in an abnormal SiC-grain growth and also leads to the non-stoichiometric composition. In this research, using a modified Si-Al-C-O fiber with an oxygen-rich surface, vaporization of the gaseous SiO was effectively prevented, and then consequently a nearly stoichiometric SiC composition could be obtained.
|
Report
(3 results)
Research Products
(8 results)
-
-
-
-
-
[Presentation] Heat-resistant Inorganic Fibers2016
Author(s)
Toshihiro Ishikawa, Hiroshi Oda
Organizer
9th International Conference on High Temperature Ceramic Matrix Composites
Place of Presentation
Toronto Marriott Downtown Eaton Centre Hotel, Toronto, Ontario, Canada
Year and Date
2016-06-26
Related Report
Int'l Joint Research / Invited
-
[Presentation] Heat-Resistant Inorganic Fibers2016
Author(s)
Toshihiro Ishikawa
Organizer
4th International Conference Modern Technologies in Industrial Engeineering
Place of Presentation
Ramada Hotel in Iasi, Romania
Year and Date
2016-06-15
Related Report
Int'l Joint Research / Invited
-
[Presentation] Heat-resistant Inorganic Fibers2015
Author(s)
Toshihiro Ishikawa
Organizer
Technical Lecture at Guangdong University of Technology
Place of Presentation
Guangdong University of Technology, Guangzhou, China
Year and Date
2015-12-17
Related Report
Invited
-
