Investigation of structure and thermal properties in composite materials based on metallic glasses with small addition of polytetrafluoroethylene

Investigation of structure and thermal properties in composite materials based on metallic glasses with small addition of polytetrafluoroethylene

Bulk composites based on Cu54Pd28P18 metallic glass and polytetrafluoroethylene (PTFE of about 1 mass %) were produced by mechanical alloying method with subsequent spark plasma sintering. The spark plasma sintering was done at the temperature close to the super cooled liquid region of the metallic...

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Bibliographic Details
Published in:Journal of alloys and compounds Vol. 707; pp. 264 - 268
Main Authors: Zadorozhnyy, V.Yu, Gorshenkov, M.V., Churyukanova, M.N., Zadorozhnyy, M.Yu, Stepashkin, A.A., Moskovskikh, D.O., Ketov, S.V., Zinnurova, L.Kh, Sharma, A., Louzguine-Luzgin, D.V., Kaloshkin, S.D.
Format: Journal Article
Language:English
Published: Lausanne Elsevier B.V 15-06-2017
Elsevier BV
Subjects:
Amorphous materials
Composite materials
Composites
Copper oxides
Glass
Heat conductivity
Heat transfer
Mechanical alloying
Metallic glass
Metallic glasses
Physical properties
Plasma sintering
Polymer matrix composites
Polytetrafluoroethylene
Self lubrication
Spark plasma sintering
Thermal conductivity
Thermal properties
Thermodynamic properties
Thermal properties
Composites
Spark plasma sintering
Metallic glass
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Summary:Bulk composites based on Cu54Pd28P18 metallic glass and polytetrafluoroethylene (PTFE of about 1 mass %) were produced by mechanical alloying method with subsequent spark plasma sintering. The spark plasma sintering was done at the temperature close to the super cooled liquid region of the metallic glass. Structure and thermal properties of the obtained metallic glass/polymeric composite samples were investigated. It was found that composite sample (Cu54Pd28P18/PTFE) has a relatively high thermal conductivity but the appearance of the crystalline phases including oxide phase (Cu2O) on the border between the metallic glass particles, affected the physical properties badly. The obtained results can be beneficial in terms of obtaining different antifriction composite materials based on metallic glass and self-lubricated polymers. •Composites based on metallic glass (Cu54Pd28P18) and polymer have been obtained.•Range between glass transition and crystallization temperature was used for the composites preparation.•Appearing of the oxide phase (Cu2O) leads the degradation in physical properties.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2016.11.359