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Isothermal Section of the Gd-Co-Ti Ternary System at 500℃

Author: DuHuaWei
Tutor: YanJiaLin
School: Guangxi University
Course: Condensed Matter Physics
Keywords: Alloy phase diagrams Gd-Co-Ti ternary system Isothermal section X-ray diffraction SEM
CLC: TG113.14
Type: Master's thesis
Year: 2011
Downloads: 7
Quote: 0
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Abstract


The isothermal section of the Gd-Co-Ti ternary system at 500℃has been investigated by means of XRD and SEM/EDS techniques.The results confirmed the existence of 12 binary compounds in the Gd-Co-Ti system, namely Gd2Co17, Gd2Co7, GdCo3, GdCo2, Gd4Co3, Gd12Co7, Gd3Co, TiCo3, TiCo2(h), TiCo2(c), TiCo and Ti2Co. The maximum solid solubilities of Ti in the compounds Gd2Co17, GdCo3, GdCo2and Gd3Co are about 6.0,2.0,3.0 and 3.0 at.% Ti, respectively. The compound TiCo has a narrow homogeneity range of 46-50 at.%Ti, with a maximum solubility of 2.0 at.% Gd. Only one ternary compound GdTixCo12-x with the tetragonal ThMn12-type structure (space group I4/mmm) was found which has a homogeneity range of 8-15at.%Ti, and i.e. x=1.0 to 1.9. No other compounds was found in this work.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metallurgy and Heat Treatment > Metallurgy ( Physical Metallurgy ) > Metallographic microstructure and properties of the (metal ) > Organization of the metal > State diagram ( phase diagram )
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