Ara
Toplam kayıt 277, listelenen: 21-30
High resolution transmission electron microscopy of grain boundaries between hexagonal boron nitride grains in Si3N4-SiC particulate composites
(Wiley-V C H Verlag GMBH, 2000)
High resolution transmission electron microscope observations of grain boundaries in hexagonal boron nitride in which adjacent grains are rotated with respect to one another about either <2 (1) over bar (1) over bar 0> or ...
?ݧ Sialon Transformation in Calcium-containing ? -SiAlON Ceramics
(1999)
Recent studies on rare earth densified ?-sialon ceramics have shown that the resulting ?-sialon product, present either as a single phase or in conjunction with ß-sialon, is unstable when heat treated at lower (1350-1600°C) ...
Novel developments in a-SiAION ceramics
(2000)
Densification and stabilization of ct-sialon ceramics have been investigated by using oxides of large cations (Sr2+, La3+, Ce3+, Nd3+) and their equimolar mixtures with calcium or ytterbium as a principal cation. All ...
Capacitor-discharge joining of oxide ceramics
(Amer Ceramic Soc, 1999)
A capacitor-discharge joining technique has been used to fabricate alumina-metal-alumina and zirconia-metal-zirconia joints using thin foils of aluminum, titanium, or amorphous AlxNiyYz alloys as interlayers. The technique ...
Hard and tough ?-SiAION ceramics
(2000)
Yb, Nd/Ca and Ce/Ca containing a-sialon starting compositions have been densified by either pressureless sintering or capsul free sinter/HIP'ing using "conventional" ?-Si3N4 powder. X-ray diffraction studies of both ...
New developments in ? -SiAlON ceramics
(1999)
Two different ?-sialon compositions have been densified by either pressureless sintering or capsul-free sinter HIPing using either single cation namely strontium, lanthanum, cerium, neodymium or their equimolar mixtures ...
New developments in alpha-SiAlON ceramics
(Elsevier Sci LTD, 1999)
Two different alpha-sialon compositions have been densified by either pressureless sintering or capsul-free sinter HIPing using either single cation namely strontium, lanthanum, cerium, neodymium or their equimolar mixtures ...
Displacement amplification of electroactive materials using the cymbal flextensional transducer
(Elsevier Science Sa, 2001)
High performance electroactive materials were studied as the driver element for the "cymbal" flextensional transducer. The compositions included were commercially available Navy Type I and PKT552 lead zirconate titanate ...
Structural analysis of bio-oils from fixed-bed pyrolysis of Euphorbia rigida and sunflower pressed bagasse
(Taylor & Francis Inc, 2000)
Fixed-bed tars of Euphorbia rigida and sunflower pressed bagasse have been investigated for their structures. These mrs were fractionated into pentane-soluble and -insoluble compounds (asphaltenes). Pentane soluble were ...
Mechanical properties of melt infiltrated boron carbide-aluminium composites
(Trans Tech Publications LTD, 2002)
Boron carbide (B4C)-aluminium (Al) composites were produced by melt infiltration of 2024-T3 series Al alloys into porous B4C compacts in the temperature range of 985 degrees -1370 degreesC under an inert atmosphere (Ar). ...