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prof. Ing. Pavel Lejček, DrSc.

Photo
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Pavel Lejček
Pracovní pozice
Head of Group
Category
Senior Scientist
Division (no.)
Division of Condensed Matter Physics (2)
Department (no.)
Department of Functional Materials (18)
Laboratory / Scientific group
Materials with Controlled Microstructure "MCM" (1803)
Telephone
+420 266 05 2167
E-mail
lejcekp [at] fzu.cz
Locality
Slovanka
Room
24
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Entropy Matters! Czech Research Advances Materials Development

Abstract

A team of scientists from the Czech Academy of Sciences and Masaryk University has made a major contribution to research into the accumulation of impurities at the interface between crystals, a phenomenon having caused e.g. a series of accidents at nuclear power stations in the UK in the 1960s.

2/27/2025
Research
Press Releases
Image
Steel bar (11 mm in diameter) with individual crystals (grains)made visible. The boundaries between them form a continuous network running through the whole bar. In the event of segregation of impurities such as phosphorus at these boundaries their cohesion is reduced and rapid brittle fracture occurs under subsequent mechanical stress.

Prestigious high-impact journal publishes a fundamental Czech study on grain boundary chemistry and material embrittlement

Abstract

The value of this success is enhanced by the fact that the team succeeded in doing that without any external reputable scientist from a prestigious western institution “opening the door” into such a journal: the published paper originates exclusively from Czech authors.

5/10/2017
Research
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