Results 101 to 110 of about 14,821 (161)

Correlación entre la microestructura y el comportamiento plástico a alta temperatura de compuestos TZP-Ni (40% vol.)

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2005
Microstructure and high-temperature mechanical behaviour of TZP-Ni composites with 40 vol.% of nickel above the percolation threshold (placed in 34 vol.% in these wet‑processed ceramic-metal composites) has been studied.
Morales-Rodríguez, A.   +3 more
doaj  

Use of cermet thin film resistors with nitride passivated metal insulator field effect transistor [PDF]

open access: yes, 1971
Film deposition of cermet resistors on same chip with metal nitride oxide silicon field effect transistors permits protection of contamination sensitive active devices from contaminants produced in cermet deposition and definition processes.
Brown, G. A., Harrap, V.
core   +1 more source

Analysis of nuclear waste disposal in space, phase 3. Volume 1: Executive summary of technical report [PDF]

open access: yes
The objectives, approach, assumptions, and limitations of a study of nuclear waste disposal in space are discussed with emphasis on the following: (1) payload characterization; (2) safety assessment; (3) health effects assessment; (4) long-term risk ...
Friedlander, A. L.   +4 more
core   +1 more source

Potential electrode materials for symmetrical Solid Oxide Fuel Cells

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2008
Chromites, titanates and Pt-YSZ-CeO<sub>2</sub> cermets have been investigated as potential electrode materials for an alternative concept of Solid Oxide Fuel Cell (SOFC), the symmetrical SOFCs (SFC). In this configuration, the same electrode
Ruiz Morales, J. C.   +7 more
doaj  

Blazing the trailway: Nuclear electric propulsion and its technology program plans [PDF]

open access: yes
An overview is given of the plans for a program in nuclear electric propulsion (NEP) technology for space applications being considered by NASA, DOE, and DOD.
Doherty, Michael P.
core   +1 more source

Cermet Development for High Temperature and High Pressure Applications [PDF]

open access: yes, 2017
Many traditionally used low cost alloys are easily corroded in steam or supercritical CO2. An effective solution is to utilize ceramic heat exchangers that are often integrated with metallic components which result in a significant thermal expansion ...
Butt, Darryl P., (Mentor)   +3 more
core   +1 more source

Quantum percolation in granular metals

open access: yes, 2004
Theory of quantum corrections to conductivity of granular metal films is developed for the realistic case of large randomly distributed tunnel conductances.
A. S. Ioselevich   +5 more
core   +1 more source

Focused technology: Nuclear propulsion [PDF]

open access: yes
The topics presented are covered in viewgraph form and include: nuclear thermal propulsion (NTP), which challenges (1) high temperature fuel and materials, (2) hot hydrogen environment, (3) test facilities, (4) safety, (5) environmental impact compliance,
Miller, Thomas J.
core   +1 more source

Ceramic bearings for use in gas turbine engines [PDF]

open access: yes
Three decades of research by U.S. industry and government laboratories have produced a vast body of data related to the use of ceramic rolling element bearings and bearing components for aircraft gas turbine engines.
Zaretsky, Erwin V.
core   +1 more source

PEGASUS: A multi-megawatt nuclear electric propulsion system [PDF]

open access: yes
A propulsion system (PEGASUS) consisting of an electric thruster driven by a multimegawatt nuclear power system is proposed for a manned Mars mission. Magnetoplasmadynamic and mercury-ion thrusters are considered, based on a mission profile containing a ...
Berkopec, Frank   +5 more
core   +1 more source

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