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The integrity, and especially, the cohesive strength of alumina plasma-sprayed coatings prepared from a range of precurser powders of different size and crystallinity has been investigated by several different methods. Several chromia and alumina-titania coatings, as well as a sintered bulk alumina, have also been studied for comparison and reference purposes. Methods of characterisation have included...
Plasma-sprayed coatings are built up from individual overlapping solidified droplets, and the nature of boundaries between these splats influences their mechanical and wear characteristics. This work aims to elucidate the correlation between these characteristics and microstructural features of model coatings produced under well-controlled processing conditions. A series of coatings with different...
Abstract. Clinical and angiographic data of a child with a unique form of partial anomalous left pulmonary artery are reported. Because the anomalous pulmonary artery does not run posterior to the trachea, this malformation is not associated with airway obstruction, as are all other forms of anomalous left pulmonary artery described to date. This case strengthens our understanding of the development...
Abstract. An unusual case of an interatrial communication similar to a sinus venosus defect associated with an overriding pulmonary venous chamber is reported. There was no direct connection of the pulmonary venous system with either the superior vena cava or the low right atrium, as is usual with sinus venosus defects. This defect may represent the result of a sinus venosus defect associated with...
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