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(Color online) IT strand cross section after ex situ HT (ramp rate ). The black areas in the true color images are voids. After the HT, Sn is almost entirely in the form of (dark gray) and (bright gray), and some are in -bronze.
3D view of the voids formed inside the IT strand at different HT temperatures. Binary images have been filtered in order to remove reconstruction artifacts.
(Color online) Formation of interfilament voids during isothermal HT. The volume of the interfilament voids with diameters in the order of cannot be measured accurately and only the voids represented in yellow are taken into account in the determination of the void volume within the strand.
(Color online) Variation of the diffraction patterns of the IT strand during Cu–Sn mixing HT cycle between 120 and (ramp rate , + isothermal , , and HT). Diffractograms have been acquired every .
(Color online) Peak areas of all Sn containing phases, apart from -bronze, that exist in the IT strand during the reaction HT up to . The peak areas have been scaled such that the values correspond with the intermetallic volume in the strand. For comparison, the total void volume is also shown in the same plot. Void volume is clearly correlated with the content in the strand.
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