| Маркер записи | n |
| Контрольный номер | RU/IS/BASE/671644069 |
| Дата корректировки | 15:47:49 13 апреля 2021 г. |
| 10.15372/KhUR2019138 | |
| Служба первич. каталог. | Феллер |
| Код языка каталог. | eng |
| Правила каталог. | PSBO |
| Код языка издания | eng |
| Индекс УДК | 544.228 |
| Duan, J. | |
|
Study on Synthesis and Densification of Non-Stoichiometric Magnesium Aluminium Spinel Electronic resource |
|
| Иллюстрации/ тип воспроизводства | il., tabl. |
| Библиография | Bibliogr.: 17 nam. |
| Аннотация | MgO x nAl[2]O[3] powder (n = 1, 1.25, 1.5, 1.75, 2.0, 2.5) was prepared by the bimetal alkoxide hydrolysis method. The effects of changes of aluminium content on material phase, particle size, morphology, infrared transmittance, and ceramic densification were studied. The results show that the MgO x nAl[2]O[3] (n . 2) powder forms a pure phase of magnesium-aluminium spinel at 1200 Ѓ‹C. When n is 2.5, the characteristic peak of Al[2]O[3] appears. The particle size of powder gradually increases with an increase of n value. There were significant differences in the densification of powders with a various of magnesium/aluminium ratio. The density of samples varies greatly with the sintering temperature. When the sintering temperature is between 1200 and 1400 Ѓ‹C, there are no obvious changes. The density is found to be 3.45 g/cm{3} at the sintering temperature of 1400 Ѓ‹C. When n is of 1.25 and 1.5, the sample density increases with an increase of sintering temperature, reaching 3.46 g/cm{3} at 1550 Ѓ‹C. The powder with ball milling has a better sintering performance, the density of the MgO x 1.5Al[2]O[3] powder with ball milling is 3.448 g/cm{3} at the sintering temperature of 1600 Ѓ‹C, which is 2.5% higher than that of the non-ballmilled sample at the same temperature. |
|
magnesium aluminium spinel synthesis powder performance магний алюминий шпинель синтез порошок представление |
|
|
Wang, X. Karagedov, G. R. Gao, H. Yang, J. |
|
|
Химия в интересах устойчивого развития 2019 V. 27, № 3. - Р. 305-311 |
|
| Имя макрообъекта | Duan_study |
| Тип документа | b |
