Compressive Creep Tests of An Aluminium Powder Composite Reinforced by Ceramic Particles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00375109" target="_blank" >RIV/68081723:_____/11:00375109 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Compressive Creep Tests of An Aluminium Powder Composite Reinforced by Ceramic Particles
Original language description
The aim of this work is to study of a composite mixture of aluminium powders, to analyze of composite microstructure and mostly to describe the creep behaviour of composite in compression. The experimental material was based on Al powder matrix (Al 99%)about the particle size of less than 200 ?m. This powder was mixtured with silicon carbide particles (SiC) having the size about 10 ?m. The Al composite powder was prepared via conventional direct hot-extrusion (DE) at temperature 450°C. The microstructural investigations were performed using OM and SEM. It was found that DE process exhibits some breaking of carbide particles to size of range from 0.5 to 5 ?m. Creep tests in compression were conducted at temperatures 423 -623 K and at applied stresses in the range from 60 to 100 MPa. Consequently, for an evaluation of controlling creep mechanisms an activation energy of creep and the stress exponent of the creep rate were determined.
Czech name
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Czech description
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Project
<a href="/en/project/KJB200410801" target="_blank" >KJB200410801: Study of nano-structure materials consolidated from powder compacts by ECAP technique</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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