Abstract
By XRD analysis of YSZ nanopowders and ceramics sintered from them it was shown that relative crystallite microstresses vary inversely as sizes of the area of coherent scattering with some coefficient of proportionality k. Physically coefficient k is a value of actual change of the average crystallite size ΔdACS under microstresses action of crystallite having the certain defective substructure in a material existing in a stable state. The difference between the coefficient k and calculated value of the Δd ACS reflects a deviation degree of the examined matter structure from thermodynamically equilibrium state, and may be considered as parameter of efficiency of technological processing conditions. The modulus of | k -ΔdACS | was minimal for the structural zirconia ceramics sintered at optimum temperature and having the maximum mechanical characteristics.
| Original language | English |
|---|---|
| Pages (from-to) | 2367-2370 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 264-268 |
| Issue number | III |
| Publication status | Published - 2004 |
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Keywords
- Apparent Crystallite Size
- Equilibrium State
- Nanoceramics
- Optimal Processing
- Relative Microstresses
ASJC Scopus subject areas
- Ceramics and Composites
- Chemical Engineering (miscellaneous)
Cite this
The deviation coefficient of crystalline nanoceramics structure from thermodynamically equilibrium state. / Khasanov, O. L.; Dvilis, E. S.
In: Key Engineering Materials, Vol. 264-268, No. III, 2004, p. 2367-2370.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The deviation coefficient of crystalline nanoceramics structure from thermodynamically equilibrium state
AU - Khasanov, O. L.
AU - Dvilis, E. S.
PY - 2004
Y1 - 2004
N2 - By XRD analysis of YSZ nanopowders and ceramics sintered from them it was shown that relative crystallite microstresses vary inversely as sizes of the area of coherent scattering with some coefficient of proportionality k. Physically coefficient k is a value of actual change of the average crystallite size ΔdACS under microstresses action of crystallite having the certain defective substructure in a material existing in a stable state. The difference between the coefficient k and calculated value of the Δd ACS reflects a deviation degree of the examined matter structure from thermodynamically equilibrium state, and may be considered as parameter of efficiency of technological processing conditions. The modulus of | k -ΔdACS | was minimal for the structural zirconia ceramics sintered at optimum temperature and having the maximum mechanical characteristics.
AB - By XRD analysis of YSZ nanopowders and ceramics sintered from them it was shown that relative crystallite microstresses vary inversely as sizes of the area of coherent scattering with some coefficient of proportionality k. Physically coefficient k is a value of actual change of the average crystallite size ΔdACS under microstresses action of crystallite having the certain defective substructure in a material existing in a stable state. The difference between the coefficient k and calculated value of the Δd ACS reflects a deviation degree of the examined matter structure from thermodynamically equilibrium state, and may be considered as parameter of efficiency of technological processing conditions. The modulus of | k -ΔdACS | was minimal for the structural zirconia ceramics sintered at optimum temperature and having the maximum mechanical characteristics.
KW - Apparent Crystallite Size
KW - Equilibrium State
KW - Nanoceramics
KW - Optimal Processing
KW - Relative Microstresses
UR - http://www.scopus.com/inward/record.url?scp=8644257672&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=8644257672&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:8644257672
VL - 264-268
SP - 2367
EP - 2370
JO - Key Engineering Materials
JF - Key Engineering Materials
SN - 1013-9826
IS - III
ER -