1950-1959
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2001 | PATENTS
| INTERNET
| Beletskii
M. S., Rapoport M. B. Study of Aluminum Compound
Formed at High Temperatures // Dokl. Akad. Nauk SSSR. - 1951.
- 80(5). - 751-754. (Russian). [no abstract] |
| Filonenko
N. E., Lavrov I. V., Andreeva O. V. On Aluminum
Oxycarbides // Dokl. Akad. Nauk SSSR. - 1959. - 124(1). - 155-158.
(Russian). [no abstract] |
| Filonenko
N. E., Lavrov I. V., Andreeva O. V., Pevzner R. L. On
Aluminum Spinel AlO·Al2O3
// Dokl. Akad. Nauk SSSR. - 1957. - 115(3). - 583-585. (Russian).
[no abstract] |
| Foster
L. M., Long G., Hunter M. S. Reactions Between
Aluminum Oxide and Carbon. The Al2O3
- Al4C3
Phase Diagram // J. Am. Ceram. Soc. - 1956.
- 39(1). - 1-11. A phase diagram of the system Al2O3-Al4C3 is proposed. Two intermediate oxycarbides, Al4O4C and Al2OC, were esteblished. Eutectic melting between alumina and Al4O4C occured at 1840°C. No other low melting was observed. The alumina phase was not corundum but was similar to delta-alumina. Because of the high reactivity of aluminum carbide and all the intermediate compounds with moisture and oxygen, use of refractories based on the system Al2O3-Al4C3 must be limited to applications where these agents are excluded. The behavior of high-alumina refractories in the presence of carbon is explained. |
| Jeffrey
G. A., Lynton H. Structure of Al2OC;
a Light Element Member of a III/(IV+VI) Class of Compounds
// Bull. Am. Phys. Soc. Ser. II. - 1958. - 3. - 231. Al2CO is isomorphous with AlN; it has the hexagonal wurtzite-type lattice, B.4, with c = 5.06, a =3.17 A. In addition to the sharp x-ray reflexions which define this lattice, single crystal photographs also show strong diffuse reflexions which can be interpreted on the basis of the same lattice with a short range periodicity of 2c and sqrt.(3)a. The diffuse pattern remains unchanged over temperature range - 70° to 850°C. This compound can be regarded as a member of a variation of the well-known III/V type in which the group V elements are replaced half by group IV and half by group VI elements, (e.g., hypothetical, B2CO, Al2GeSe, In2GeSe). As is the normal III/V compounds, the structure type should change from hexagonal B.4 to cubic B.3 with the combinations of atoms with smaller electronegativity differences. It is believed that the long range disorder in the arrangement of the atoms on the lattice is an important contributing factor to the stability. Although no other compounds of this subtype have yet been reported, it is likely that they could exist since some analogous 1/2(II+IV)/V compounds have recently been described. |
|
Vert
Zh. L., Kamentsev M. V., Kudryavtsev V. I., Sokhor M. I. On
the Problem of Carbon Reduction of Al2O3
// Dokl. Akad. Nauk SSSR. - 1957. - 116(5). - 834-837. (Russian).
[no abstract] |
