Structural changes which accompany the catalytic graphitization of carbon have been investigated. Utilizing X-ray diffraction and high temperature microscopy techniques, the effectiveness of various additives in promoting the formation of graphite from a variety of carbon materials of varying degree
Microscopic observations of the crystallization processes of polyethylene under high pressure
โ Scribed by Munehisa Yasuniwa; Tetuo Takemura
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 880 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0032-3861
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The two hard carbons PH-7, a phenolformaldehyde resin char carbonized to 700ยฐC and PH-15, which was the same PH-7 heat-treated for 60min at 1500ยฐC under reduced pressure, were heat-treated at various temperatures under pressure of 5 kbar and examined using a polarized light microscope. Bright golden
Single crystal mat (SCM) samples of polyethylene (PE) were prepared from dilute solution of p-xylen, then they were annealed at pressures of 200 and 500 MPa. Lamellar thickness of the original and annealed SCM samples was measured by smallangle X-ray scattering method. Orientation of the molecular c