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Toplam kayıt 7, listelenen: 1-7
Wear behaviour of alpha- and alpha/beta-SiAlON ceramics stabilized with Nd2O3 and Y2O3
(Elsevier Sci LTD, 2009)
alpha- and alpha/beta-SiAlON compositions, doped with Y2O3 or Nd2O3, were densified by gas pressure sintering (GPS). The wear and mechanical properties of the materials were investigated and compared to beta-Si3N4 materials. ...
Sr2+-Mg2+-doped SiAlON ceramics
(Blackwell Publishing, 2006)
In the present work, multi-cation-doped (Sr2+-Mg2+) SiAlON ceramics were investigated. MgO and SrO were used in 100:0 and 50:50 molar ratios. The mixture was sintered at 1800 degrees and 1830 degrees C for 1 h in a gas ...
Production of cordierite ceramic by aqueous tape casting process
(Elsevier Science Sa, 2008)
Tape-casting process was used to produce cordierite ceramics in an aqueous system with polyvinylalcohol (PVA), and polyethyleneglicol (PEG), as binder and plasticizer, respectively. Before starting to tape-casting studies, ...
Oxidation behaviour and kinetics of alpha-SiAlON ceramics
(Taylor & Francis LTD, 2009)
In this study, the oxidation behaviours of Y, Sin and Y/Sm doped alpha-SiAlON ceramics are investigated to examine the oxidation kinetics. The oxidation tests are carried out at 1300-1450 degrees C for different holding ...
The effects of processing on the alpha <-> beta SiAlON transformation during cycling heat treatments
(Elsevier Science Sa, 2008)
Typical alpha/beta-SiAlON starting composition of formula Nd(0.33)Si(9.38)Al(2.62)O(1.62)N(14.38) was densified by two different sintering processes, hot pressing (HP) and gas pressure sintering (GPS), using Nd(2)O(3) as ...
The influence of different CaO source in the production of anorthite ceramics
(Elsevier Sci LTD, 2009)
The effects of starting raw materials and firing conditions oil anorthite (CaAl2Si2O8) phase formation are investigated by differential thermal analysis (DTA)-thermogravimetry (TG) and X-ray powder diffraction (XRD). Four ...
The reaction kinetics of rice husk based cordierite ceramics
(Elsevier Sci LTD, 2008)
In this study, rice husk ash (RHA) was used as a silica source for cordierite production. Two different groups of samples were prepared in order to achieve the synthesis of cordierite. In the first group (HS-0), kaolinite, ...