Results 11 to 20 of about 6,601,099 (279)

On the critical thickness of ceramic to shatter WC-Co bullet cores [PDF]

open access: yes, 2011
In this paper, the 7.62 mm x 51 mm FFV round consisting of a tungsten carbide core (1550 HV) and copper gilding jacket was fired at silicon nitride, titanium diboride, tungsten carbide and silicon carbide ceramics. Of particular interest is the thickness
Hazell, Paul J., Roberson, Colin J.
core   +7 more sources

Large Section Ceramic Injection Moulding [PDF]

open access: yes, 2000
PhDCeramic injection moulding is already established as a production technique for complex shaped ceramic components. However the process is limited to thin section mouldings generally not exceeding a wall thickness of 10 mm.
Krug, Steffen
core   +4 more sources

Development of EB-PVD TBC'S : the role of deposition temperature and plasma assistance

open access: yes, 1995
Gas turbine manufacturers have achieved continuingly improved engine efficiency and thrust-to-weight ratio by designing with increased Turbine Entry Temperature (TET).
Jaslier, Yann
core   +7 more sources

Determination of degradation level during cavitation erosion of zircon based ceramic [PDF]

open access: yesScience of Sintering, 2017
Mechanical shock of zircon based ceramic induced by cavitation erosion testing was investigated in this study. Several parameters were followed in order to determine level of material degradation during the cavitation erosion testing.
Pavlović Marko   +6 more
doaj   +1 more source

Microstructure and Degree of Degradation of ZnO Varistors in Surge Arresters Due to Operation [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
The paper presents the test results for the microstructure of ZnO varistors comprising high voltage gapless surge arresters. The tests were performed on varistors produced in different periods and by various manufacturers.
P. Papliński   +3 more
doaj   +1 more source

Overview of magnesium-ceramic composites: mechanical, corrosion and biological properties

open access: yesJournal of Materials Research and Technology, 2021
Magnesium (Mg) and its alloys are potential metals for biodegradable implants because of several benefits, including a reduction of stress shielding effect in the implant for orthopedic application and the elimination of the step of a second surgery to ...
F. Khorashadizade   +7 more
doaj   +1 more source

Indirect selective laser sintering of an apatite-mullite glass-ceramic [PDF]

open access: yes, 2004
The main objective of this work was to determine the feasibility of using indirect selective laser sintering (SLS) to produce parts for bone replacement applications from glass-ceramic materials.
Goodridge, Ruth Davina
core   +6 more sources

The numerical analysis of dynamically loaded ceramic: a crack softening approach [PDF]

open access: yes, 2000
A physically based crack softening approach to modelling the failure of brittle materials that have been subjected to dynamic loading is presented and applied to a two-dimensional non-linear transient dynamic hydrocode.
Iremonger, Michael J.   +5 more
core   +1 more source

Thermal/chemical degradation of ceramic cross-flow filter materials [PDF]

open access: yes, 1989
This report summarizes the 14-month, Phase 1 effort conducted by Westinghouse on the Thermal/Chemical Degradation of Ceramic Cross-Flow Filter Materials program. In Phase 1 expected filter process conditions were identified for a fixed-bed, fluid-bed, and entrained-bed gasification, direct coal fired turbine, and pressurized fluidized-bed combustion ...
Alvin, M. A.   +2 more
openaire   +2 more sources

Biological and mechanical degradation affecting the surface properties of aesthetic restorative

open access: yesBrazilian Journal of Oral Sciences, 2017
Aim: To evaluate the roughness (Ra), Knoop hardness (KHN) and change of color (∆E) of esthetic restorative materials (Filtek Z350-composite nanoparticle; Empress Direct-composite nanohybrid and IPS e.Max-ceramic) subjected to contact with the ...
Bianca Medeiros Maran   +4 more
doaj   +1 more source

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