Композиты в высокотемпературных ядерных реакторах

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  • .. 1, .. 2, .. 21 , ., 2- .. ,,

  • ()

  • ()

  • : 20-45% : 60% ( .)

    1000-1100: ( , - 2, .)

  • , ,

  • MgOBeOY2O3SiO2MgAl2O4Y3Al5O12. !?

  • -

  • 1: Y3Al5O12-Y3Al5O12

  • Y3Al5O12 Y3Al5O12 : ,

  • 2: -Kazmin,V.I, Mileiko,S.T., and Tvardovsky,V.V., Strength of ceramic matrix - metal fibre composites, Compos. Sci. and Technology, 38 (1990) 69 - 84.

  • 2: -Kazmin,V.I, Mileiko,S.T., and Tvardovsky,V.V., Strength of ceramic matrix - metal fibre composites, Compos. Sci. and Technology, 38 (1990) 69 - 84.

  • 3: SiC-SiC SiC, >100

  • .. .. () 90- 1 (Al2O3-Al2O3) 2. 1000 250 .

  • Internal Crystallisation Method

  • 5. Dissolution of molybdenum

  • ()5. Dissolution of molybdenum

  • A variety of possible compositions and microstructures of composites is determined mainly by the availability of various oxide fibres obtained by the internal crystallisation methodSingle crystallineSapphireYAGMulliteMgAl2O4EutecticsAl2O3-Al5Y3O12 (AY)Al2O3-Er5Y3O12 (AEr)Al2O3-Al5Y3O12-ZrO2 (AYZ)Al2O3-AlLaO3 (ALa)etc.

  • -:

  • -:

  • Eutectic fibres (Al2O3-Y3Al5O12):strength crystallisation rate

  • Eutectic fibres (Al2O3-Y3Al5O12-ZrO2):strength crystallisation rateBase 1 mm

  • (C) YAGC is stress to yield 1% creep strain for 100 h

  • ()5. Dissolution of molybdenum

  • ()

  • .

  • : ?