Выдержка
We have studied the structure and phases of boron nitride and zirconium dioxide (both have a wide spectrum of crystalline sizes) using x-ray analysis and electron diffraction microscopy. We show that, even when the crystallites are of order 100 nm, their diffraction pattern is similar to that of other nanocrystalline materials. This pattern is dictated by the high degree of dispersion and the lattice distortions of the crystallites' periphery. The distortions in these materials are caused by internal stresses. In boron nitride the stress relaxes by polygonization of the peripheral regions. This destroys the long-range translational order and leads to the formation of intercrystallite regions due to incoherent binding between crystals. In zirconium oxide short-range order is destroyed by variations in the lattice constants in the regions near the crystal faces.
| Язык оригинала | Английский |
|---|---|
| Страницы (с-по) | 95-100 |
| Число страниц | 6 |
| Журнал | Russian Physics Journal |
| Том | 37 |
| Номер выпуска | 1 |
| DOI | |
| Состояние | Опубликовано - янв 1994 |
Отпечаток
ASJC Scopus subject areas
- Physics and Astronomy(all)
Цитировать
Structural-diffraction analysis of nanocrystalline materials. / Ivanov, Yu F.; Lopatin, V. V.; Dedkov, V. S.
В: Russian Physics Journal, Том 37, № 1, 01.1994, стр. 95-100.Результат исследований: Материалы для журнала › Статья
}
TY - JOUR
T1 - Structural-diffraction analysis of nanocrystalline materials
AU - Ivanov, Yu F.
AU - Lopatin, V. V.
AU - Dedkov, V. S.
PY - 1994/1
Y1 - 1994/1
N2 - We have studied the structure and phases of boron nitride and zirconium dioxide (both have a wide spectrum of crystalline sizes) using x-ray analysis and electron diffraction microscopy. We show that, even when the crystallites are of order 100 nm, their diffraction pattern is similar to that of other nanocrystalline materials. This pattern is dictated by the high degree of dispersion and the lattice distortions of the crystallites' periphery. The distortions in these materials are caused by internal stresses. In boron nitride the stress relaxes by polygonization of the peripheral regions. This destroys the long-range translational order and leads to the formation of intercrystallite regions due to incoherent binding between crystals. In zirconium oxide short-range order is destroyed by variations in the lattice constants in the regions near the crystal faces.
AB - We have studied the structure and phases of boron nitride and zirconium dioxide (both have a wide spectrum of crystalline sizes) using x-ray analysis and electron diffraction microscopy. We show that, even when the crystallites are of order 100 nm, their diffraction pattern is similar to that of other nanocrystalline materials. This pattern is dictated by the high degree of dispersion and the lattice distortions of the crystallites' periphery. The distortions in these materials are caused by internal stresses. In boron nitride the stress relaxes by polygonization of the peripheral regions. This destroys the long-range translational order and leads to the formation of intercrystallite regions due to incoherent binding between crystals. In zirconium oxide short-range order is destroyed by variations in the lattice constants in the regions near the crystal faces.
UR - http://www.scopus.com/inward/record.url?scp=34249767057&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34249767057&partnerID=8YFLogxK
U2 - 10.1007/BF00558931
DO - 10.1007/BF00558931
M3 - Article
AN - SCOPUS:34249767057
VL - 37
SP - 95
EP - 100
JO - Russian Physics Journal
JF - Russian Physics Journal
SN - 1064-8887
IS - 1
ER -