Results 251 to 260 of about 345,040 (275)
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Engineering aspect of alumina on alumina hip prosthesis
Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2007Alumina on the alumina sliding system in a total hip replacement is recognized as a breakthrough in orthopaedic surgery. Advantages and problems with this material are explained and discussed in the light of 36 years of clinical application. Laboratory data as well as clinical ones are summarized.
L, Sedel, A, Raould
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Hydraulic Alumina Binder for Extrusion of Alumina Ceramics
Journal of the American Ceramic Society, 2007The present work describes the effect of hydraulic alumina (HA) as a new inorganic binder on extrusion of alumina ceramics. The addition of a small amount of HA imparted significant flowability and rigidity to the extruded alumina.
Takaaki Nagaoka +4 more
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Hydrogen sulfide adsorption on alumina, modified alumina, and molybdenum trioxide/alumina
The Journal of Physical Chemistry, 1986A systematic investigation of H/sub 2/S adsorption on Al/sub 2/O/sub 3/, modified Al/sub 2/O/sub 3/, and MoO/sub 3//Al/sub 2/O/sub 3/ catalysts was carried out by using temperature-programmed desorption techniques, coupled with IR and XPS. SiO/sub 2/-Al/sub 2/O/sub 3/ and AlPO/sub 4/ were also studied for comparison. It was found that Al/sub 2/O/sub 3/
Yasuaki Okamoto +4 more
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Journal of the American Ceramic Society, 2002
The densification kinetics and mechanism of a low‐temperature cofirable borosilicate glass (BSG) + alumina during the constrained sintering of a sandwich structure of alumina/(BSG + alumina)/alumina has been studied. The densification kinetics becomes slower when the BSG + alumina tape is constrained during firing.
Yun‐Chiang Lin, Jau‐Ho Jean
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The densification kinetics and mechanism of a low‐temperature cofirable borosilicate glass (BSG) + alumina during the constrained sintering of a sandwich structure of alumina/(BSG + alumina)/alumina has been studied. The densification kinetics becomes slower when the BSG + alumina tape is constrained during firing.
Yun‐Chiang Lin, Jau‐Ho Jean
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1992
The bauxite reserve base is estimated at 28000 million tonnes, and total world resources are estimated at 55000 to 75000 million tonnes (South America 33%, Africa 27%, Asia 17%, Australasia 13% and elsewhere 10%).
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The bauxite reserve base is estimated at 28000 million tonnes, and total world resources are estimated at 55000 to 75000 million tonnes (South America 33%, Africa 27%, Asia 17%, Australasia 13% and elsewhere 10%).
openaire +1 more source