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Lingmin Zeng - One of the best experts on this subject based on the ideXlab platform.

  • Isothermal Section of the Al—Dy—Ge Ternary System at 673 K.
    ChemInform, 2011
    Co-Authors: Zhong-ping Xu, Duanyong Li, Lingmin Zeng, Wei He
    Abstract:

    The 673 K Isothermal Section of the phase diagram of the title system is constructed based on powder XRD and SEM results.

  • Isothermal Section of the al dy ge ternary system at 673 k
    Journal of Alloys and Compounds, 2011
    Co-Authors: Zhongli Qin, Pingli Qin, Lingmin Zeng
    Abstract:

    Abstract The Isothermal Section of the phase diagram of the Al–Dy–Ge ternary system at 673 K has been investigated by X-ray powder diffraction and scanning electron microscope equipped with energy dispersive X-ray spectroscopy in backscattered electron imaging modes. The existence of thirteen binary compounds including Dy 3 Ge 4 in the system Dy–Ge has been confirmed. Four ternary compounds, namely AlDyGe, Al 3 Dy 2 Ge 4 , AlDy 2 Ge 3 , and AlDy 2 Ge 2 were observed, and five new ternary compounds, i.e., Al 0.33 DyGe 2 , AlDy 2 Ge 6 , Al 2 DyGe 2 , AlDy 3 Ge 3 , and Al 3− x Dy 11 Ge 7+ x ( x  ≤ 0.7), and one pseudo-binary compound Al 3− x DyGe x were found in this system at 673 K. The maximum solid solubility of Ge in the pseudo-binary compounds Al 3− x DyGe x is about 7.5 at.% with x  = 0.3 at 673 K.

  • Isothermal Section of the ho co fe system at 773 k
    Journal of Alloys and Compounds, 2011
    Co-Authors: Wei He, Meihua Yu, Yongzhi Zhang, Yunhong Zhao, Lingmin Zeng
    Abstract:

    Abstract The 773 K Isothermal Section of the phase diagram of the Ho–Co–Fe ternary system was investigated by using X-ray diffraction technique, metallographic analysis and scanning electron microscopy with energy dispersive analysis. The Isothermal Section of the ternary system consists of 6 three-phase regions, 16 two-phase regions and 11 single-phase regions. Three pairs of corresponding compounds of Ho–Co and Ho–Fe systems, i.e., Ho 2 Co 17 and Ho 2 Fe 17 , HoCo 3 and HoFe 3 , HoCo 2 and HoFe 2 , form a continuous series of solid solution. At 773 K the compound Ho 6 Fe 23− x Co x was found to have a wide homogeneity range from 0 to 29 at.% Co. The maximum solid solubilities of Fe in Co, Ho 2 Co 7 , Ho 12 Co 7 and Ho 3 Co were determined to be about 10, 9, 2 and 5 at.% Fe, respectively. The maximum solid solubility of Co in Fe is found to be 78 at.% Co.

  • Isothermal Section of the y fe cr ternary system at 773 k
    Journal of Alloys and Compounds, 2010
    Co-Authors: Wei He, Jinman He, Meihua Yu, Xiaohua Wang, Lingmin Zeng
    Abstract:

    Abstract The Isothermal Section of the phase diagram of the Y–Fe–Cr ternary system at 773 K was investigated by X-ray powder diffraction (XRD), optical microscopy, differential thermal analysis (DTA), scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS). The Isothermal Section consists of 8 single-phase regions, 14 two-phase regions and 7 three-phase regions. The maximum solid solubilities of Cr in Fe, Y 2 Fe 17 , Y 6 Fe 23 and YFe 2 are 13, 18, 6 and 6 at.% Cr, respectively. The maximum solid solubility of Fe in Cr is about 15 at.% Fe. It was found that there is some homogeneity range in the ternary compound of YFe 12− x Cr x with x  = 2.1–3.4 at 773 K.

  • Isothermal Section of the er cu ga ternary system at 973 k
    Journal of Alloys and Compounds, 2010
    Co-Authors: Wei He, Lihua Tang, Liang Yang, Lingmin Zeng
    Abstract:

    Abstract Phase relations in the Er–Cu–Ga ternary system have been established at 973 K by means of powder X-ray diffraction complemented by energy dispersive spectroscopy coupled to scanning electron microscopy. The Isothermal Section of the phase diagram comprises eight extensions of binaries into the ternary system, ErCu 1− x Ga x ( x  ≤ 0.5), ErCu 2− x Ga x ( x  ≤ 1.1), ErCu 5− x Ga x ( x  ≤ 0.5), Er 5 Cu x Ga 3− x ( x  ≤ 0.60), Er 3 Cu x Ga 2− x ( x  ≤ 0.24), ErCu x Ga 1− x ( x  ≤ 0.10), ErCu x Ga 2− x ( x  ≤ 0.30) and ErCu x Ga 3− x ( x  ≤ 0.35), as well as six ternary intermediate phases, ErCu x Ga 2− x (0.4 ≤  x  ≤ 0.7), Er 14 Cu 51− x Ga x (5.5 ≤  x  ≤ 11.0), ErCu 5− x Ga x (0.8 ≤  x  ≤ 2.3), Er 2 Cu 17− x Ga x (4.9 ≤  x  ≤ 8.0), ErCu 12− x Ga x (5.7 ≤  x  ≤ 6.7) and Er 3 Cu x Ga 11− x (1.5 ≤  x  ≤ 4.4), all deriving from binary structure-types.

A.p. Gonçalves - One of the best experts on this subject based on the ideXlab platform.

  • Isothermal Section of the ternary phase diagram u fe ge at 900 c and its new intermetallic phases
    Journal of Alloys and Compounds, 2015
    Co-Authors: Marta S C Henriques, David Berthebaud, El Z Sayah, C Moussa, O Tougait, A. Lignie, Ladislav Havela, A.p. Gonçalves
    Abstract:

    Abstract The Isothermal Section at 900 °C of the U–Fe–Ge ternary system was assessed using experimental results from X-ray diffraction and observations by scanning electron microscopy coupled with energy dispersive X-ray spectroscopy chemical analysis. The phase diagram at this temperature is characterized by the formation of fourteen stable phases: four homogeneity ranges and ten intermetallic compounds. Among these, there is an extension of the binary compound UFe2 into the ternary system (UFe2−xGex, x

  • Isothermal Section of the ternary phase diagram u fe ge at 900 c and its new intermetallic phases
    Journal of Alloys and Compounds, 2015
    Co-Authors: Marta S C Henriques, David Berthebaud, El Z Sayah, C Moussa, O Tougait, A. Lignie, Ladislav Havela, A.p. Gonçalves
    Abstract:

    Abstract The Isothermal Section at 900 °C of the U–Fe–Ge ternary system was assessed using experimental results from X-ray diffraction and observations by scanning electron microscopy coupled with energy dispersive X-ray spectroscopy chemical analysis. The phase diagram at this temperature is characterized by the formation of fourteen stable phases: four homogeneity ranges and ten intermetallic compounds. Among these, there is an extension of the binary compound UFe 2 into the ternary system (UFe 2− x Ge x , x 2 Fe 17− x Ge x (2  x 1− x Ge 2 (0.58  x 6+ x Ge 6− x ( x 2 Fe 3 Ge, U 6 Fe 16 Ge 7 , UFe 4 Ge 2 , U 6 Fe 22 Ge 13 , UFeGe, U 3 Fe 4 Ge 4 , UFe 2 Ge 2 , U 34 Fe 3.32 Ge 33 , U 3 Fe 2 Ge 7 , and U 9 Fe 7 Ge 24 .

  • Isothermal Section of the ternary phase diagram u fe ge at 900 c and its new intermetallic phases
    ChemInform, 2015
    Co-Authors: Marta S C Henriques, David Berthebaud, El Z Sayah, C Moussa, O Tougait, A. Lignie, Ladislav Havela, A.p. Gonçalves
    Abstract:

    The Isothermal Section at 900 °C of the phase diagram of the U—Fe—Ge ternary system is investigated by melting and annealing the elements for 4 weeks prior to quenching in H2O.

  • on the 500 c Isothermal Section of the ternary eu ag ga system up to 33 3 at eu
    Journal of Alloys and Compounds, 2014
    Co-Authors: Yu. Verbovytskyy, Manuel F. C. Pereira, A.p. Gonçalves
    Abstract:

    Abstract The Isothermal Section of the ternary Eu–Ag–Ga system has been studied at 500 °C for the 0–33.3 at.% Eu concentration region. X-ray diffraction techniques, optical microscopy and scanning electron microscopy, complemented with energy dispersive X-ray spectroscopy, were used to identify the phases and characterize their crystal structures and compositions. The crystal structure of selected phases has been refined using powder X-ray diffraction data. This study indicates the formation of six new intermetallic phases in the explored region: EuAg0.14Ga2.86 (own type, related to CeNiSi2 type), EuAg2.8Ga1.8 (YbAg2.5Ga2.1 type), Eu4Ag14.7Ga7.6 (Sc4Cu14.76Ga7.51 type), Eu4Ag11.3Ga5.7 (own type), Eu2Ag13.6–13Ga3.3–4 (Th2Zn17 type) and EuAg3.2Ga0.8 (unknown type).

  • the yb zn ga system partial Isothermal Section at 400 c with 0 33 3 at yb
    Intermetallics, 2010
    Co-Authors: Yu. Verbovytskyy, A.p. Gonçalves
    Abstract:

    Abstract The phase relations in the ternary system Yb–Zn–Ga have been studied at 400 °C for the partial Isothermal Section in the 0–33.3 at.% ytterbium concentration range. X-ray powder diffraction (XRPD), optical microscopy (OM) and scanning electron microscopy (SEM), complemented with energy dispersive X-ray spectroscopy (EDS), were used to analyse the microstructures, identify the phases and characterize their crystal structures and compositions. The Yb–Zn–Ga partial Section at 400 °C is characterized by the presence of an extended solid solution, YbZn2−xGax (0≤ x ≤ 1), and the existence of four ternary intermetallic compounds, YbZnxGa4−x, 0.75≤ x ≤ 2 (BaAl4-type), YbZnxGa4−x, 0.25≤ x ≤ 0.5 (CaCu0.15Ga3.85-type), Yb3Zn11−xGax, 3.5≤ x ≤ 4.2 (La3Al11-type) and YbZn11−xGax, 1.8≤ x ≤ 2.7 (BaHg11-type), the last three being reported here for the first time. Sixteen ternary phase fields have been identified in the studied partial Isothermal Section at 400 °C.

Yinghong Zhuang - One of the best experts on this subject based on the ideXlab platform.

  • Isothermal Section of the dy co ti ternary system at 500 c
    ChemInform, 2009
    Co-Authors: J L Yan, Jinli Huang, Q X Long, D X Liu, Yinghong Zhuang
    Abstract:

    Abstract The Isothermal Section of the Nd–Co–Ti system at 500 °C has been investigated by means of XRD and SEM/EDS techniques. Compound Nd2Co3 was observed to exist at 500 °C with the orthorhombic La2Ni3-type structure, space group Cmca and unit cell parameters a = 0.4986(2) nm, b = 1.0000(2) nm, c = 0.7546(2) nm. One ternary compound NdTixCo12−x with the tetragonal ThMn12-type structure (space group I4/mmm) was found with a homogeneity range of 1.43 ≤ x ≤ 1.82, i.e. 11–14 at.% Ti. The structure of NdTi1.7Co10.3 was determined by Rietveld refinement method with the unit cell parameters a = 0.84616 (1) nm, c = 0.47447 (1) nm. The maximum solid solubilities of Ti in Nd2Co17, Nd2Co7, NdCo3, NdCo2, and Nd3Co are 6, 1.5, 2, 4 and 2 at.%, respectively.

  • Isothermal Section of the dy co ti ternary system at 500 c
    Journal of Alloys and Compounds, 2009
    Co-Authors: Jinli Huang, Q X Long, Yinghong Zhuang, J Q Li
    Abstract:

    Abstract The Isothermal Section of the Dy–Co–Ti system at 500 °C has been investigated in the whole composition range by means of X-ray diffraction, thermal analysis, scanning electron microscopy and energy dispersive X-ray spectroscopy. The only ternary phase DyTi x Co 12− x is of ThMn 12 -type structure, space group I 4/ mmm , and shows a small homogeneity range of 1 ≤  x  ≤ 1.6. The lattice parameters for DyTi x Co 12− x with 1 ≤  x  ≤ 1.56 are a  = 0.8336(4)–0.8402(1) nm and c  = 0.4691(3)–0.4727(1) nm. Along a constant Dy concentration, the solid solubilities of Ti in the compounds Dy 2 Co 17 , DyCo 3 , DyCo 2 and Dy 3 Co are about 2.0, 2.0, 3.0 and 4.0 at.%, respectively. The TiCo phase has a homogeneity range of 50–54 at.% Co at 500 °C and dissolves up to 2.0 at.% Dy.

  • the Isothermal Section of the dy fe ge ternary system at 773 k
    ChemInform, 2009
    Co-Authors: Yinghong Zhuang, C. Loc'h, Xiang Chen
    Abstract:

    Abstract The Isothermal Section of the phase diagram of the Dy–Fe–Ge ternary system at 773 K has been investigated mainly by X-ray powder diffraction (XRD), with the aid of differential thermal analysis (DTA) and optical microscopy (OM). Sixteen binary compounds have been confirmed. Five ternary compounds DyFe 4 Ge 2 , DyFe 2 Ge 2 , DyFe 6 Ge 6 , Dy 117 Fe 52 Ge 112 , and Dy 5 Fe 2 Ge 10 have been confirmed in this system at 773 K.

  • the Isothermal Section of the gd fe ge ternary system at 773 k
    Journal of Alloys and Compounds, 2009
    Co-Authors: Yinghong Zhuang, C. Loc'h, K.f. Li, Xiang Chen
    Abstract:

    Abstract The Isothermal Section of the phase diagram of the Gd–Fe–Ge ternary system at 773 K was investigated by X-ray powder diffraction (XRD), differential thermal analysis (DTA) and optical microscopy. The existences of 14 binary compounds, GdFe 2 , GdFe 3 , Gd 6 Fe 23 , Gd 2 Fe 17 , Fe 3 Ge, Fe 5 Ge 3 , Fe 6 Ge 5 , FeGe, FeGe 2 , Gd 5 Ge 3 , Gd 5 Ge 4 , GdGe, Gd 2 Ge 3 , Gd 3 Ge 5 , and four ternary compounds GdFe 2 Ge 2 , GdFe 6 Ge 6 , Gd 2 FeGe 4 , Gd 117 Fe 52 Ge 112 , were confirmed. This Section consists of 21 single-phase regions, 43 two-phase regions, and 23 three-phase regions.

  • the Isothermal Section of the gd dy co ternary system at 800 k
    Journal of Alloys and Compounds, 2006
    Co-Authors: Yinghong Zhuang, J Q Li, K W Zhou, J Q Deng, Wei He
    Abstract:

    Abstract The Isothermal Section of the phase diagram of the Gd–Dy–Co ternary system at 800 K was investigated by X-ray powder diffraction (XRD), differential thermal analysis (DTA), optical microscopy and scanning electron microscopy (SEM) techniques. The result shows that this Section consists of 9 single-phase regions and 9 two-phase regions, and 1 three-phase region. The compounds Gd 2 Co 17 and Dy 2 Co 17 , Gd 2 Co 7 and Dy 2 Co 7 , GdCo 3 and DyCo 3 , GdCo 2 and DyCo 2 , Gd 12 Co 7 and Dy 12 Co 7 , Gd 3 Co and Dy 3 Co form a continuous series of solid solutions. In addition, the single phases α-Gd and α-Dy also form a continuous series of solid solution. The maximum solid solubility of Dy in Gd 4 Co 3 is about 10.8 at.%. The binary compounds Dy 4 Co 3 , GdCo 5 and DyCo 5 were not observed at 800 K. No ternary compound was found.

Wei He - One of the best experts on this subject based on the ideXlab platform.

  • Isothermal Section of the Al—Dy—Ge Ternary System at 673 K.
    ChemInform, 2011
    Co-Authors: Zhong-ping Xu, Duanyong Li, Lingmin Zeng, Wei He
    Abstract:

    The 673 K Isothermal Section of the phase diagram of the title system is constructed based on powder XRD and SEM results.

  • Isothermal Section of the ho co fe system at 773 k
    Journal of Alloys and Compounds, 2011
    Co-Authors: Wei He, Meihua Yu, Yongzhi Zhang, Yunhong Zhao, Lingmin Zeng
    Abstract:

    Abstract The 773 K Isothermal Section of the phase diagram of the Ho–Co–Fe ternary system was investigated by using X-ray diffraction technique, metallographic analysis and scanning electron microscopy with energy dispersive analysis. The Isothermal Section of the ternary system consists of 6 three-phase regions, 16 two-phase regions and 11 single-phase regions. Three pairs of corresponding compounds of Ho–Co and Ho–Fe systems, i.e., Ho 2 Co 17 and Ho 2 Fe 17 , HoCo 3 and HoFe 3 , HoCo 2 and HoFe 2 , form a continuous series of solid solution. At 773 K the compound Ho 6 Fe 23− x Co x was found to have a wide homogeneity range from 0 to 29 at.% Co. The maximum solid solubilities of Fe in Co, Ho 2 Co 7 , Ho 12 Co 7 and Ho 3 Co were determined to be about 10, 9, 2 and 5 at.% Fe, respectively. The maximum solid solubility of Co in Fe is found to be 78 at.% Co.

  • Isothermal Section of the y fe cr ternary system at 773 k
    Journal of Alloys and Compounds, 2010
    Co-Authors: Wei He, Jinman He, Meihua Yu, Xiaohua Wang, Lingmin Zeng
    Abstract:

    Abstract The Isothermal Section of the phase diagram of the Y–Fe–Cr ternary system at 773 K was investigated by X-ray powder diffraction (XRD), optical microscopy, differential thermal analysis (DTA), scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS). The Isothermal Section consists of 8 single-phase regions, 14 two-phase regions and 7 three-phase regions. The maximum solid solubilities of Cr in Fe, Y 2 Fe 17 , Y 6 Fe 23 and YFe 2 are 13, 18, 6 and 6 at.% Cr, respectively. The maximum solid solubility of Fe in Cr is about 15 at.% Fe. It was found that there is some homogeneity range in the ternary compound of YFe 12− x Cr x with x  = 2.1–3.4 at 773 K.

  • Isothermal Section of the er cu ga ternary system at 973 k
    Journal of Alloys and Compounds, 2010
    Co-Authors: Wei He, Lihua Tang, Liang Yang, Lingmin Zeng
    Abstract:

    Abstract Phase relations in the Er–Cu–Ga ternary system have been established at 973 K by means of powder X-ray diffraction complemented by energy dispersive spectroscopy coupled to scanning electron microscopy. The Isothermal Section of the phase diagram comprises eight extensions of binaries into the ternary system, ErCu 1− x Ga x ( x  ≤ 0.5), ErCu 2− x Ga x ( x  ≤ 1.1), ErCu 5− x Ga x ( x  ≤ 0.5), Er 5 Cu x Ga 3− x ( x  ≤ 0.60), Er 3 Cu x Ga 2− x ( x  ≤ 0.24), ErCu x Ga 1− x ( x  ≤ 0.10), ErCu x Ga 2− x ( x  ≤ 0.30) and ErCu x Ga 3− x ( x  ≤ 0.35), as well as six ternary intermediate phases, ErCu x Ga 2− x (0.4 ≤  x  ≤ 0.7), Er 14 Cu 51− x Ga x (5.5 ≤  x  ≤ 11.0), ErCu 5− x Ga x (0.8 ≤  x  ≤ 2.3), Er 2 Cu 17− x Ga x (4.9 ≤  x  ≤ 8.0), ErCu 12− x Ga x (5.7 ≤  x  ≤ 6.7) and Er 3 Cu x Ga 11− x (1.5 ≤  x  ≤ 4.4), all deriving from binary structure-types.

  • Isothermal Section of the er cu ga ternary system at 973 k
    Journal of Alloys and Compounds, 2010
    Co-Authors: Wei He, Lihua Tang, Liang Yang, Lingmin Zeng
    Abstract:

    Abstract Phase relations in the Er–Cu–Ga ternary system have been established at 973 K by means of powder X-ray diffraction complemented by energy dispersive spectroscopy coupled to scanning electron microscopy. The Isothermal Section of the phase diagram comprises eight extensions of binaries into the ternary system, ErCu 1− x Ga x ( x  ≤ 0.5), ErCu 2− x Ga x ( x  ≤ 1.1), ErCu 5− x Ga x ( x  ≤ 0.5), Er 5 Cu x Ga 3− x ( x  ≤ 0.60), Er 3 Cu x Ga 2− x ( x  ≤ 0.24), ErCu x Ga 1− x ( x  ≤ 0.10), ErCu x Ga 2− x ( x  ≤ 0.30) and ErCu x Ga 3− x ( x  ≤ 0.35), as well as six ternary intermediate phases, ErCu x Ga 2− x (0.4 ≤  x  ≤ 0.7), Er 14 Cu 51− x Ga x (5.5 ≤  x  ≤ 11.0), ErCu 5− x Ga x (0.8 ≤  x  ≤ 2.3), Er 2 Cu 17− x Ga x (4.9 ≤  x  ≤ 8.0), ErCu 12− x Ga x (5.7 ≤  x  ≤ 6.7) and Er 3 Cu x Ga 11− x (1.5 ≤  x  ≤ 4.4), all deriving from binary structure-types.

Huaiying Zhou - One of the best experts on this subject based on the ideXlab platform.

  • experimental Isothermal Section of the nb ni ru ternary system at 1100 c
    Journal of Alloys and Compounds, 2019
    Co-Authors: Huaiying Zhou, Yong Du, Qianxin Long, Jingjing Zhou, Jianqiu Deng, Shunli Shang
    Abstract:

    Abstract In the present work, the phase equilibria of the Nb-Ni-Ru system at 1100 °C were investigated via a combination of triple diffusion and equilibrated alloys. The samples were examined by X-ray diffraction and electron probe microanalysis. Three new ternary compounds, namely, τ1 (Nb5Ni13Ru2), τ2 (Nb(Ni1-xRux)3, 0.17 ≤ x ≤ 0.32) and τ3 (Nb(Ni1-xRux)3, 0.34 ≤ x ≤ 0.67), were discovered. The Isothermal Section of the Nb-Ni-Ru ternary system at 1100 °C consists of 10 single-phase regions, 20 two-phase regions, and 11 three-phase regions. The homogeneity ranges for phases in this system were established. In addition, the phases of the Nb-Ru binary system at 1100 °C were discussed, and the existence of compounds NbRu and NbRu2 was confirmed. The NbRu3 phase was not identified, but it should be the solid solution of Ru.

  • Isothermal Section at 773 k and microwave absorption properties of pr fe ni alloys
    Journal of Alloys and Compounds, 2015
    Co-Authors: Jilei Xiong, Lichun Cheng, Huaiying Zhou
    Abstract:

    Abstract The Isothermal Section at 773 K of the phase diagram of Pr-Fe-Ni system was investigated by X-ray powder diffraction and scanning electron microscopy equipped with energy dispersive spectroscopy. The Isothermal Section consists of 11 single phase regions, 19 two-phase regions and 9 three-phase regions. The maximum solid solubilities of Fe in Ni, PrNi 5 , Pr 2 Ni 7 , PrNi 3 , PrNi 2 , Pr 7 Ni 3 and Pr 3 Ni are about 80.0, 18.2, 15.4, 11.8, 1.9, 1.7 and 4.4 at%, respectively. The maximum solid solubilities of Ni in Fe and Pr 2 Fe 17 are about 5.0 and 1.2 at%, respectively. The solid solubility of Fe in PrNi phase is negligible. The influence of Fe substitution on the microwave absorbing properties of the PrNi 5 alloy was investigated. The frequency corresponding to the minimum absorption peak of Pr 16.67 Ni 83.33-x Fe x (x = 0.0–17.5) shifts towards higher frequency region upon the Fe substitution. The Pr 16.67 Ni 68.33 Fe 15.0 alloy exhibits the best microwave absorption properties. The minimum reflection loss of Pr 16.67 Ni 68.33 Fe 15.0 powder is −35.10 dB at 9.76 GHz, and the frequency bandwidth of reflection loss smaller than −10 dB reaches about 1.60 GHz with the best matching thickness of 1.5 mm.

  • investigation of the Isothermal Section of the ce co al ternary system at 573 k
    Journal of Rare Earths, 2011
    Co-Authors: Huaiying Zhou, Chengying Tang
    Abstract:

    The Isothermal Section of the Ce-Co-Al ternary system at 573 K was investigated by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) techniques. It consisted of 19 single-phase regions, 46 two-phase regions and 25 three-phase regions. Four ternary compounds, namely CeCoAl, Ce2Co15Al2, CeCoAl4, CeCo2Al8, were confirmed in this system. At 573 K, the maximum solid solubilities of Co in CeAl2 and Al in CeCo2 were about 10.4 at.% and 10.0 at.%, respectively. The homogeneity range of CoAl phase extended from about 46.0 to 56.0 at.% Al.

  • Isothermal Section at 1100 c of the fe ni ta system
    Journal of Alloys and Compounds, 2010
    Co-Authors: Minmin Tong, Honghui Xu, Chengying Tang, Yong Du, Yuehui He, Huaiying Zhou
    Abstract:

    Abstract The Isothermal Section of the Fe–Ni–Ta system at 1100 °C was constructed using 6 diffusion couples and 10 alloys, the compositions of which were selected on the basis of the experimental results of the (Fe–Ni alloy)/Ta diffusion couples. The samples were examined by means of optical microscopy, scanning electron microscopy, and electron probe microanalysis. Experimental results showed no existence of ternary compounds at 1100 °C. The following five three-phase equilibria were observed: (1) (Ta) + Ta 2 Ni + Ta(Fe, Ni), (2) Fe 2 Ta + Ta (Fe, Ni) + TaNi 2 , (3) Fe 2 Ta + TaNi 2  + TaNi 3 , (4) Fe 2 Ta + TaNi 3  + (Fe, Ni), (5) TaNi 3  + TaNi 8  + (Fe, Ni). The compounds FeTa and NiTa formed continuous solid solution. The solubility of Fe in TaNi 2 and TaNi 3 was determined to be 18 and 7.8 at.%, respectively, while the solubility of Ni in Fe 2 Ta was estimated to be 40 at.%.

  • the Isothermal Section of the gd ni v ternary system at 773 k
    Journal of Alloys and Compounds, 2009
    Co-Authors: Yan Zhong, Chengying Tang, Huaiying Zhou, Qingrong Yao, Ruiping Zou
    Abstract:

    Abstract The phase equilibria of the Gd–Ni–V system at 773 K were investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), and electron probe microanalysis (EPMA). The experimental results show no existence of ternary compounds at 773 K. The existence of 14 single-phase regions, 25 two-phase regions and 12 three-phase regions was determined. The maximum solubility of V in (Ni), Gd 2 Ni 17 , GdNi 5 and GdNi 2 was measured to be about 16 at.%, 2 at.%, 3 at.% and 2.5 at.%, respectively, while that of Gd in (Ni), Ni 3 V, Ni 2 V, Ni 2 V 3 , NiV 3 and (V) was less than 1 at.%. An Isothermal Section of the Gd–Ni–V system at 773 K has been presented according to the present work.