52 research outputs found
Contradictions and conflict: A meta-ethnographic study of migrant women’s experiences of breastfeeding in a new country
Giant pop-ins in nanoindented silicon and germanium caused by lateral cracking
Giant “pop-in” displacements are observed in crystalline silicon and germanium during high-load nanoindentation with a spherical diamond tip. These events are consistent with material removal triggered by lateral cracking during loading, which poses a hazard to microelectromechanical systems (MEMS) operation. We examine the scaling of the pop-in displacements as a function of peak indentation load and demonstrate a correlation with the depth of the plastic contact zone. We argue that giant pop-ins may occur in a broad range of highly brittle materials.This work was supported by a travel grant from the
Australian Research Network for Advanced Materials
The ecology of the image: The environmental politics of Philippe Quesne and Vivarium Studio
Peasants, proletarianization and the articulation of modes of production: The case of sugar cane cutters in northern Peru, 1940–69
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