Yttrium aluminum garnet fibers

M.K. Cinibulk et al., Porous yttrium aluminum garnet fiber coatings for oxide composites. J. Am. Ceram. Soc. 85(11), 2703-2710 (2002). 

King, B.H., and J.W. Halloran. 1995. Polycrystalline yttrium aluminum garnet fibers from colloidal sols. Journal of the American Ceramic Society 78(8) 2141-2148. 

Morscher, G.N., K.C. Chen, and K.S. Mazdiyasni. 1994. Creep-resistance of developmental polycrystalline yttrium-aluminum garnet fibers. Ceramic Engineering and Science Proceedings 15 181—187. ... 

B. H. King and J. W. Halloran, Polycrystalline Yttrium Aluminum Garnet Fibers from Colloidal Sols, J. Am. Ceram. Soc., 78 [8] 2141-2148 (1995). 

Lewis, M.H., York, S., Freeman, C., Alexander, I.C., Al-Dawery, 1., Butler, E.G. and Doleman, P.A. (2000) Oxyde CMCs novel fibres, coatings and fabrication procedures. Ceram. Eng. Sci. Proc., 21(3) 535. Morscher, G.N. and Chen, K.C. (1994) Creep resistance of developmental polycrystalline yttrium-aluminum garnet fibers. Ceram. Eng. Sci. Proc., 15(4) 755,... 

Morscher G.N., Chen K.C., Mazdiyasni K.S. Creep resistance of developmental polycrystalline yttrium aluminum garnet fibers. Ceram. Eng. Sci. Proc. 1994 14 181-188 Mosset A., Gautier-Luneau I., Galy J., Strehlow P., Schmidt H. Sol-gel processed BaTiOa structural evolution from the gel to the crystalline powder. J. Non-Cryst. Solids 1988 100 339-344 NaskarM.K., Ganguli D. Rare-earth doped zirconia fibres by sol-gel processing. J. Mato. Sci. 1996 31 6263-6267... 

Fig. 7 Creep-resistance of the eutectic fiber consisting of interpenetrating phases of alpha-alumina and yttrium-aluminum-garnet (YAG) up to very high temperatures compared with other types of oxide fibers... 

All currently available commercial oxide fibers are based on aluminum oxides. Examples are alumina (AI2O3) yttrium aluminum garnet (YAG) and mullite (3Al203-2Si02). 

In processes with conventional quench rates of 10 K/s, the inviscid liquid (melt) or resulting jet is carefully under- or supercooled to its narrow fiber forming range (log 2.5 to log 3.0 poise). Three types of fibers have been made by variants of this process continuous optical yttrium aluminum garnet (YAG) glass fibers, continuous aluminate glass fibers and steel fibers. 

Three processes are known to fabricate continuous yttrium aluminum garnet (YAG) fibers. Single crystal YAG fibers are obtained by the edge defined film fed growth process and by the laser heated float zone process (Chapter 4.5). Both are slow processes. Amorphous YAG glass fibers have recently been demonstrated by a containerless laser heated melt process (Chapter 4.4). Polycrystalllne YAG fibers can be obtained with sol-gel and related processes (this chapter). These are potentially fast processes. 

D. Popovich and J. L. Lombardi, Fabrication and mechanical properties of polymer melt spun yttrium aluminum garnet (YAG) fiber, Ceram. Eng. Sci. Proc., 18 [3], 65-72 (1997). 

Kitaoka K., Koznka H., Yoke T. Preparation of lead lanthannm zirconate titanate (PLZT, (Pb,La)(Zr,Ti)03) fibers by sol-gel method. J. Am. Ceram. Soc. 1998 81 1189-1196 Koznka H., Knroki H., Sakka S. Flow characteristics and spinnability of sols prepared from silicon alkoxide solntion. J. Non-Cryst. Solids 1988 100 226-230 Kmger R., Glanbitt W., Lobmann P. Strnctnre evolntion in sol-gel-derived yttrium aluminum garnet-alumina precursor fibers. J. Am. Ceram. Soc. 2002 85 2827-2833 Kurokawa H., Ohta H., Sato T. Preparation of carbide fibres by thermal decomposition ofceUulose-metal (Ti, Zr) alkoxide gel fibres. J. Mater. Sci. Lett. 1994 13 516-518 Knrokawa Y., Ishizaki T., Suzuki M. Preparation of refractory nitride fibers by thermal decomposition of transition metal (Ti, Nb) alkoxide-cellnlose preenrsor gel fibres in NH3 atmosphere. J. Mater. Sci. 2001 36 301-306... 

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