Results 241 to 250 of about 414,245 (302)

Wetting of ceramic-metal and ceramic-ceramic interfaces

[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics, 2002
Contact angles of the metal-ceramic interface in a heating process were measured until the metal melted. Ag on BaTiO/sub 3/ disks melted with an almost hemispherical shape at an obtuse angle and did not wet to BaTiO/sub 3/. Metal Ag on superconducting Ba/sub 2/Y/sub 1/Cu/sub 3/O/sub 7- delta / showed better wetting than in the case of BaTiO/sub 3 ...
S. Sugihara, K. Okazaki
openaire   +1 more source

Ceramics and ceramic-to-metal sealing

Vacuum, 1964
Abstract The physical characteristics of ceramics most commonly used in the electronic and aerospace industry are described, and a review is presented of the methods by which ceramics are joined to metals to arrive at vacuum-tight, reliable structures. The subject of bond mechanisms is touched briefly, and some data on voltage breakdown are given.
openaire   +1 more source

Gel technology in ceramics, glass-ceramics and ceramic-ceramic composites

Ceramics International, 1989
Abstract For many years, ceramists have been interested in sintering at low temperatures to manufacture devices that incorporate different materials sintering together, to deposit films on a substrate, to make fibers or ceramic-ceramic composites and to achieve fine-grained microstructures.
openaire   +1 more source

Ceramic-on-Ceramic Total Hip Arthroplasty

The Journal of Arthroplasty, 2009
Ceramic bearing surfaces have been introduced to prevent bone loss after osteolysis seen with conventional polyethylene bearing surfaces. One hundred three ceramic-on-ceramic total hip arthroplasties in 97 patients were retrospectively reviewed. Average follow-up was 50.4 months.
Joseph W, Greene, Arthur L, Malkani, Frank R, Kolisek, Nenette M, Jessup, Dale L, Baker   +4 more
openaire   +2 more sources

Ceramic/ceramic total hip arthroplasty

Journal of Orthopaedic Science, 2000
Alumina-on-alumina total hip arthroplasty has been used for 30 years, mainly in Europe. The theoretical advantages of this combination are represented by its remarkable sliding characteristics, its very low wear debris generation, and its sufficient fracture toughness.
P, Bizot, R, Nizard, S, Lerouge, F, Prudhommeaux, L, Sedel   +4 more
openaire   +2 more sources

Bonding and Structure of Ceramic-Ceramic Interfaces

Physical Review Letters, 2013
Quantum molecular dynamics simulations of α-Al2O3(0001)/3C-SiC(111) interfaces reveal profound effects of thermal annealing for producing strong interfaces consisting solely of cation-anion bonds and their consequence on interfacial structures. A Si-terminated SiC surface and Al2O3 form a stronger interface (Si-interface) with a Si-O bond density of 12.
Kohei, Shimamura, Fuyuki, Shimojo, Rajiv K, Kalia, Aiichiro, Nakano, Priya, Vashishta   +4 more
openaire   +2 more sources

Brazing of ceramic-to-ceramic and ceramic-to-metal joints in air

Frontiers of Mechanical Engineering in China, 2010
Reactive air brazing (RAB) is an emerging technology for the production of ceramic-to-ceramic and ceramic-to-metal joints. In this study, RAB was investigated with respect to the potential applications for solid oxide fuel cells (SOFCs) as one example of use. It was found that alumina could be well brazed by RAB with AgCu and AgCuTi brazes.
Kirsten Bobzin, Thomas Schlaefer, Lidong Zhao, Nils Kopp, Arne Schlegel   +4 more
openaire   +1 more source

Microwave Sintering of Metal-Ceramic and Ceramic-Ceramic Composites

MRS Proceedings, 1994
ABSTRACTPolyphase ceramic and metal ceramic composites with at least one high dielectric loss component are potential candidates for application of microwave sintering, because of the high effectiveness of power dissipation and short sintering times.
T. Gerdes, M. Whxert-Porada
openaire   +1 more source

Hydroxyapatite Ceramic Hip Survey: Ceramic/Ceramic Bearings

Key Engineering Materials, 2007
This paper describes the clinical application of alumina ceramic and, more recently, Zirconia Toughened Alumina (ZTA), to the bearing surfaces of hip implants with a maximum follow up of fifteen years. Patients are assessed pre- and post-operatively using the Harris Hip Score.
James M. Buchanan, Sally Goodfellow
openaire   +1 more source

Debris From Failed Ceramic-on-Ceramic and Ceramic-on-Polyethylene Hip Prostheses

Clinical Orthopaedics and Related Research, 2001
To compare the properties of wear debris between ceramic-on-ceramic and ceramic-on-polyethylene total hip prostheses, particles were isolated and characterized from tissue biopsies obtained at revision arthroplasty or autopsy from two similar uncemented modular hip systems.
Y, Mochida, M, Boehler, M, Salzer, T W, Bauer   +3 more
openaire   +2 more sources