Programme

Unfurtunately the monastery Irsee has been closed by the Bavarian government due to the corona virus.

Therefore we have decided to offer the conference as a web conference only.

In those unpredictable times, protecting our participants’ health has the highest priority for us!

The scientific exchange must not come to a complete standstill and we believe that with this web solution we have found a way to keep the scientific community going.

In order to participate in the livestream of the conference as easy as possible and to give your presentation, we recommend the use of the web browsers Google Chrome or Microsoft Edge.

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Lecture

An unforeseen class of functionally graded materials improves damage and stress tolerance of a nacroprismatic bivalve shell

Wednesday (18.03.2020)
10:10 - 10:30

Biominerals are biogenically generated ceramic materials which underwent evolutionary optimization over hundreds of millions of years under considerable selection pressure. This lead to high-performance materials with remarkably high functional density and, thus, light-weight characteristics and an intricate hierarchical design. Today, biominerals thus serve as an unfathomable source of design motifs valuable for new and effective design of functional ceramic materials. One of those distinct elements of design often employed in biominerals is a materials gradient which roots, e.g., in a variation in composition, particle size or even crystallinity. Investigating a shell of a calcareous, nacroprismatic bivalve, we reveal a new class of functionally graded material which is based on an exceptional control of crystallographic features during shell growth. The emerging gradient enhances significantly the damage and stress tolerance of the bivalve shell. This design concept does not find, yet, any counterpart in synthetic materials and is thus hitherto unparalleled by mankind. This unforeseen class of functionally graded materials changes our view on the properties and complexity of crystalline biominerals.

Speaker:
Priv.-Doz. Dr. rer. nat Stephan E. Wolf
Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)