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• 2010-06-16 12:30 Wizard191 528×454× (32011 bytes) Cropped.
• 2009-06-15 04:41 Materialscientist 640×512× (36448 bytes) brighter
• 2009-06-15 04:40 Materialscientist 640×512× (30432 bytes) {{Information |Description = Si₃N₄ bearings and parts |Source = http://www.ms.ornl.gov/programs/energyeff/cfcc/iof/chap21-2sin.pdf |Date = |Author = ornl.gov |Permission = |other_versions = }