Results 251 to 260 of about 85,040 (301)

Reaction Sintered LiAlON

2008
Recent results suggest that Li + can substitute for Al 3+ in the gamma-AlON structure. LiAl 5 O 8 is isostructural with gamma-AlON above 1290°C after it goes through an ordered-disordered phase transformation and has a similar lattice parameter. A previous study showed the benefits of reaction sintering LiAlON starting with LiAl 5 O 8 as compared ...
Raymond A. Cutler, R. Marc Flinders
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Hydrothermal reaction sintering of monoclinic zirconia

1989
A 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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Sintering Reactions of Zinc Oxide

Journal of Applied Physics, 1959
The 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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Synthesis of hercynite by reaction sintering

Journal of the European Ceramic Society, 2011
Abstract Hercynite was synthesized by a reaction sintering method using industrial alumina, mill scale, and carbon black as starting materials in the presence of nitrogen and solid carbon at high temperatures. Phase and microstructure changes during the synthesis were investigated. The specimen sintered at 1450 °C consisted of hercynite (FeO·Al 2 O 3
Junhong Chen, Lingyan Yu, Jialin Sun, Yong Li, Wendong Xue   +4 more
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Reactions for Hydrothermal Reaction Sintering

1990
Metal powders or chips were reacted with high temperature and high pressure solution to form oxides under certain hydrothermal conditions.
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Fabrication of Reaction‐Sintered Sialon

Journal of the American Ceramic Society, 1977
A 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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Fractography of Reaction-Sintered Si3N4

Journal of Engineering for Power, 1980
Fractography 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, P. L. Land, R. Ruh, R. W. Rice, D. C. Larsen   +4 more
openaire   +1 more source

Reaction sintering of Fe-Al-Si alloys

Journal of Phase Equilibria, 2002
The 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, G. Camana, J. Kazior, Lutterotti, Luca, T. Pieczonka, Molinari, Alberto   +5 more
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Reaction Sintering of Submicrometer Silicon Powder

Journal of the American Ceramic Society, 1987
Submicrometer silicon powder synthesized by thermally induced, vapor‐phase reaction in an aerosol reactor was densified by reaction sintering to form Si 3 N 4 .
Gregory, Otto J., Lee, Sang-Baek, Flagan, Richard C.   +2 more
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Microstructure of cBN-diamond sintered compact prepared by reaction sintering

Journal of Materials Science, 1991
cBN-diamond composite sintered compacts (diamond content 15–70 wt %) were prepared by reaction sintering at 7–7.5 GPa and 1400–1700 °C for 10–30 min from the starting powder of the hBN-diamond system in the presence of 1 wt % NH4NO3 as a volatile catalyst. A fully dense sintered compact with 99% conversion from hBN to cBN was obtained at 7 GPa and 1700
H. Itoh, H. Takao, H. Iwahara
openaire   +1 more source