Results 301 to 310 of about 85,788 (333)
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Reaction-sintered carbide-nitride systems
Refractories, 1990On etudie le frittage reactif de systemes de refractaires composites a base de carbure de bore contenant du nitrure de bore et du carbure de ...
T. P. Markholiya +3 more
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Reaction-sintered ZrO2-mullite composites
Materials Science and Engineering: A, 1989Abstract Mullite ceramics have rather modest mechanical properties at room temperature. However, the strength and fracture toughness can be improved by adding ZrO 2 , i.e. through transformation-toughening mechanisms. The present study has been devoted to the preparation of mullite and ZrO 2 -mullite composites by reaction sintering.
M. Holmström, T. Chartier, P. Boch
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Fabrication of Reaction‐Sintered Sialon
Journal of the American Ceramic Society, 1977A factorial design experiment was conducted to determine the major parameters affecting the densification of mixtures having the composition (in mol%) 50 Si 3 N 4 , 25 A1 2 O 3
R. R. WILLS, R. W. STEWART, J. M. WIMMER
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Hydrothermal reaction sintering of monoclinic zirconia
1989A dense monoclinic zirconia ceramic having a maximum density of 5.85 g/cm3 and grains of 1–5 µm has been prepared from Zr metal powder and water in a Pt capsule by hydrothermal reaction sintering at 1000°C for 3 h under 98 MPa. The effects of temperatures, pressures, and initial compositions on the densification and sintering were studied. The reaction
Masahiro Yoshimura, Shigeyuki Sômiya
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Fractography of Reaction-Sintered Si3N4
Journal of Engineering for Power, 1980Fractography studies were accomplished on two reaction-sintered Si3N4 materials (Norton NC-350 Si3N4 and KBI (Kawecki-Berylco) Si3N4) which had been tested in four-point bending at room temperature, 1200, 1350, and 1500°C in air. At room temperature NC-350 exhibited uniform planar features representing a transgranular fracture mode, uniformly ...
M. G. Mendiratta +4 more
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Reaction-sintered hot-pressed TiAl
Journal of Materials Science, 1992Titanium aluminide intermetallic alloys and composites were formed from elemental titanium and aluminium powders by self propagating, high-temperature synthesis in an induction-heated hot-press. The crystal phases, density, transverse rupture stress, and hardness of the reaction-sintered compacts, were observed to be controlled by hot-pressing ...
J. C. Rawers, W. R. Wrzesinski
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Reactions for Hydrothermal Reaction Sintering
1990Metal powders or chips were reacted with high temperature and high pressure solution to form oxides under certain hydrothermal conditions.
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Sintering Reactions of Zinc Oxide
Journal of Applied Physics, 1959The sintering of zinc oxide spheres has been studied in the temperature range 700 to 900°C in air, oxygen, helium, and hydrogen. Fresh zinc oxide sinters rapidly in air and oxygen, but it does not sinter appreciably in helium in the same temperature range.
V. J. Lee, G. Parravano
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Reaction sintering of Fe-Al-Si alloys
Journal of Phase Equilibria, 2002The present study concerns the production of multiphase alloys of the Fe-Al-Si system using a powder metallurgical approach. Several compositions have been considered based on α-Fe, α′-FeAl; and α″-Fe3Al intermetallic phases. Elemental powder mixtures were compacted and sintered in a dilatometer.
Gialanella, Stefano +5 more
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Expansion during the reaction sintering of PZT
Ceramurgia International, 1980Abstract Expansion during the reaction sintering of PZT from PT and PZ constituents was studied at different molar ratios, for different particle sizes, and different temperatures: compositional and particle size effects were observed. The expansion is related to the size of the PT particles present and exhibits a maximum at 50 mole% PT for equal ...
Yoshikazu Nakamura +2 more
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