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Projects / Programmes source: ARIS

Identification of structural defects in crystals.

Research activity

Code Science Field Subfield
2.04.01  Engineering sciences and technologies  Materials science and technology  Inorganic nonmetallic materials 

Code Science Field
P250  Natural sciences and mathematics  Condensed matter: structure, thermal and mechanical properties, crystallography, phase equilibria 
T153  Technological sciences  Ceramic materials and powders 
Keywords
anisotropic crystal growth, epitaxial crystal growth, planar faults, polytypism.
Evaluation (rules)
source: COBISS
Researchers (1)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  10083  PhD Aleksander Rečnik  Chemistry  Head  1998 - 2001  651 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  91,101 
Abstract
When processing ceramics, some crystallites develop to enormous sizes compared to the majority of other grains. This effect, known as anisotropic grain growth, is the main source of inhomogeniety in polycrystalline materials and markedly influences physical properties of the product. Based on our observations in several oxide ceramic systems we propose, that both, generic nature and growth of such grains are ruled by chemically driven formation of faulted structure within. Local structure and chemistry of these faults are always common to that of the host crystal and to an existent equilibrium thermodynamic phase.
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