JAEA
  • help
  • PC | SP
  • JP | EN
          
Refine your search：     
Report No.
 - 
Clear All
Search Results: Records 1-3 displayed on this page of 3
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Oral presentation

Fabrication of ceramic gas separation membranes by EB crosslinking without oxygen

Sugimoto, Masaki; Takeyama, Akinori; Yoshikawa, Masahito

no journal, , 

SiC membranes synthesized from precursor polymers have an excellent thermal and corrosion resistances and the structure is amorphous with nano-hole which has gas permeability. Therefore, the membranes are expected as a hydrogen separation filter that can be used in the severe environment. However, the improvement of the amount of the hydrogen penetration and the separation ratio is required. In this research, the possibility of controlling the gas penetration of the SiC membranes by EB crosslinking technique was examined.

Oral presentation

Crystal structure and conduction path analysis of Li(Co$$_{1/3}$$Ni$$_{1/3}$$Mn$$_{1/3}$$)O$$_{2}$$ by neutron powder diffraction

Igawa, Naoki; Taguchi, Tomitsugu; Fukazawa, Hiroshi; Yamauchi, Hiroki; Utsumi, Wataru

no journal, , 

The crystal structure of Li(Co$$_{1/3}$$Ni$$_{1/3}$$Mn$$_{1/3}$$)O$$_{2}$$ was studied by the Rietveld method using the neutron powder diffraction, and the neutron scattering length density maps were analyzed for the investigation of the Li conduction path by the maximum entropy method (MEM). The crystal structure could be refined with the space group, ${it R}$-3${it m}$. Though Li, (Co, Ni, Mn) and O atoms were mainly occupied at 3${it a}$, 3${it b}$ and 6${it c}$ sites, 3.8% of 3${it a}$ site was substituted by Ni atom. According to the neutron scattering length density maps obtained by MEM, it is assumed that the Li atom was diffused through the 3${it a}$-9${it e}$-3${it a}$.

Oral presentation

Synthesis of a catalyst-loaded SiC-based material by a precursor method

Idesaki, Akira; Sugimoto, Masaki; Yoshikawa, Masahito

no journal, , 

A precursor for SiC-based materials was prepared by blending polycarbosilane (PCS) with palladium (II) acetate (Pd(OAc)$$_{2}$$). Obtained PCS/Pd(OAc)$$_{2}$$ blend showed a mass residue of 81% at 1200$$^{circ}$$C, which is 25% higher than that of pure PCS. Furthermore, a FT-IR spectrum of PCS/Pd(OAc)$$_{2}$$ blend showed the decay of absorbing peaks assigned to Si-H bond containing in the PCS. These results indicate that Pd(OAc)$$_{2}$$ acts as a crosslinking agent of PCS and is very useful to synthesize a SiC-based material with high ceramic yield.

3 (Records 1-3 displayed on this page)
  • 1