TY - JOUR

T1 - Beryllium – A challenge for preparation and mechanical characterization

AU - Siller, Maximilian

AU - Kappacher, Johann

AU - Rolli, R.

AU - Clemens, Helmut

AU - Maier-Kiener, Verena

N1 - Publisher Copyright: © Carl Hanser Verlag GmbH & Co KG

PY - 2019

Y1 - 2019

N2 - Beryllium has an extraordinary combination of material properties such as low density, high melting point, high specific heat capacity, high Young's modulus, high hardness and low atomic number. The conventional investigation of the mechanical properties of Be and Be alloys is only possible under difficult conditions due to the material's toxicity and the resulting restrictions on sample manufacturing. These limitations are avoided, at least partly, when using a depthsensing hardness test, also called nanoindentation, where the resulting contamination with Be dusts is limited to a controllable extent. For this work, technically pure Be from Xray exit windows of highperformance Xray tubes was chosen and its mechanical properties were characterized by means of nanoindentation. This contribution will focus in detail on the preparation of the material as well as the following microstructural characterization by means of light microscopy and scanning electron microscopy. The mechanical results of local nanoindentation will be correlated with the microstructure and compared with known values found in the literature.

AB - Beryllium has an extraordinary combination of material properties such as low density, high melting point, high specific heat capacity, high Young's modulus, high hardness and low atomic number. The conventional investigation of the mechanical properties of Be and Be alloys is only possible under difficult conditions due to the material's toxicity and the resulting restrictions on sample manufacturing. These limitations are avoided, at least partly, when using a depthsensing hardness test, also called nanoindentation, where the resulting contamination with Be dusts is limited to a controllable extent. For this work, technically pure Be from Xray exit windows of highperformance Xray tubes was chosen and its mechanical properties were characterized by means of nanoindentation. This contribution will focus in detail on the preparation of the material as well as the following microstructural characterization by means of light microscopy and scanning electron microscopy. The mechanical results of local nanoindentation will be correlated with the microstructure and compared with known values found in the literature.

UR - http://www.scopus.com/inward/record.url?scp=85073330542&partnerID=8YFLogxK

U2 - 10.3139/147.110572

DO - 10.3139/147.110572

M3 - Article

VL - 56.2019

SP - 624

EP - 633

JO - Practical metallography = Praktische Metallographie

JF - Practical metallography = Praktische Metallographie

SN - 0032-678X

IS - 10

ER -