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Variation of the tree ring micro-hardness demonstrated on spruce wood
wood tree ring micro-hardness penetration strength
2015/2/2
Micro-hardness was used for the study of wood structure (Norway spruce) in the line perpendicular to tree rings (radial surface). The steel indentor 0.25 mm in diameter with flat head was used for thi...
Study of Vickers´ Micro Hardness on InBi0.85Sb0.15 Single Crystals
Vickers' micro hardness Cold-worked crystals Annealed crystals Zone-melting method
2010/4/9
InBi0.85Sb0.15 single crystals have been grown by zone-melting method. The growth velocity was 0.8 cm/h and the freezing interface temperature was 35 °C/cm. A Vickers' projection microscope was used f...