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Toplam kayıt 10, listelenen: 1-10
Effect of starting Si3N4 powder type and sintering conditions on the grain morphology of ?-SiAlON ceramics
(2002)
Nitrogen rich neodymium-ytterbium containing multi-cation ?-sialon starting compositions have been prepared by gas pressure sintering using "conventional" ?-Si3N4 or plasma produced ß-Si3N4 powder. The effect of ?-SiAlON ...
Investigation of the phase composition and stability of the alpha-SiAlONs by the Rietveld method
(Elsevier Sci LTD, 2002)
Different compositions of Y- and Nd-alpha-SiAlONs were sintered at 1825 degreesC and analysed by the XRD method. The Rietveld technique was used for characterisation of the diffraction pattern and the x value of alpha-SiAlON, ...
Transmission electron microscopy of SrO containing multi-cation doped ?-SiAlON ceramics
(2002)
An advantage of ?-SiAlON is that it can accommodate cations of sintering additives and hence reduces the amount of deleterious remnant intergranular amorphous phase. However, it is believed that relatively large cations ...
Performance of new alpha-beta SiAlONs in turning operations
(Trans Tech Publications LTD, 2002)
New alpha-beta SiAlON ceramics were produced, characterised and tested in turning operations of cast iron. Cutting speeds varied between 400-1200 m/min while feeding rates were between 0.3 to 0.5 mm/rev. The results were ...
Effect of starting Si3N4 powder type and sintering conditions on grain morphology of alpha-SiAlON ceramics
(Maney Publishing, 2002)
Nitrogen rich multication alpha-SiAlON ceramics doped with Y-Ce have been densified by gas pressure sintering using alpha-Si3N4 or mixed beta/alpha-Si3N4 starting powder. The effects of alpha-SiAlON nucleation and growth ...
The effect of processing conditions, amount of additives and composition on the microstructures and mechanical properties of alpha-SiAlON ceramics
(Elsevier Sci LTD, 2002)
A series of samples with yttrium alpha -SiAlON compositions and different amounts of additive has been fabricated from alpha -Si3N4, AIN, Al2O3 and Y2O3 starting powders, using gas pressure sintering and three different ...
Luminescence properties of terbium-, cerium-, or europium-doped alpha-sialon materials
(Academic Press Inc Elsevier Science, 2002)
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Transmission electron microscopy of SrO containing multi-cation doped alpha-SiAlON ceramics
(Trans Tech Publications LTD, 2002)
An advantage of alpha-SiAlON is that it can accommodate cations of sintering additives and hence reduces the amount of deleterious remnant intergranular amorphous phase. However, it is believed that relatively large cations ...
Effects of different Si3N4 starting powders and sintering conditions on the grain morphology and mechanical properties of alpha-SiAlON ceramics
(Trans Tech Publications LTD, 2002)
Nitrogen rich yttrium-cerium containing multi-cation alpha -SiAlON starting compositions have been prepared by gas pressure sintering using "conventional" alpha -Si3N4 or alpha-beta Si3N4 containing powder. The effect of ...
Improvement of elongated alpha-SiAlON ceramics by variation of the processing conditions and amounts of additives
(Trans Tech Publications LTD, 2002)
Two types of Y-alpha -SiAlON composition, with different amounts of additional liquid phase were densified in a gas pressure sintering furnace using three different sintering cycles. One series of samples was heated up to ...