50.3 MB (2.6 MB compressed)
4526 x 3886 pixels
38.4 x 33.0 cm ⏐ 15.1 x 13.0 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Titanium crystals. Coloured scanning electron micrograph (SEM) of the surface crystals of a sintered (heated and shaped) titanium bead on a joint implant. The outer surface of the bead becomes almost molten during the sintering process, forming surface crystals when it slowly cools down. Sintered beads act as the bone-contact surface on joint implants, as new bone tissue grows around the beads and into the gaps between each bead to provide a firm fixation for the implant. Magnification: x23,470 when printed 10 centimetres wide.
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