Growth and Properties of Single Crystal Oxide Fibers

Internal Crystallisation Method to Produce Oxide Fibres and Heat Resistant Composites

“…LHPG was used, perhaps for first time, to grow single-crystal Cr-doped Al 2 O 3 fibres from a small source rods melted locally on its end by a CO 2 laser [18]. Then it has been used rather intensively to grow mainly optical fibres [19], although attempts to grow structural fibres are also known [20]. There are some advantages of the method: the absence of a crucible allows growing sufficiently pure crystals; a small volume of the melts yields an increase in both thermal efficiency despite of a low efficiency of the laser heating and and mass exchange around the process zone that would be useful in growing such materials as mullite, which is characterized by a complicated phase diagram.…”

Creep of directionally solidified alumina/YAG eutectic monofilaments

“…21,25,26,63,64 A sapphire tube furnace was radiation heated by an inductively coupled molybdenum suscepter. Argon was used to protect the molybdenum susceptor, which resided between the o.d.…”

Production of Chromium‐Doped α‐Al2O3 Whiskers Via Vapor Liquid Solid Deposition

“…Doping not only causes changes in color, but in other properties of the alumina as well. This makes the behavior of doped alumina an active field of research, 7–9 as the kinetics of precipitation and phase stability in impurity‐doped α‐Al 2 O 3 have significant economic importance 10 . For example, doped alumina particles are used in composites for the special features of the metal–ceramic interface.…”